When an engine moves excessively when it is placed in gear and accelerated, the most likely problem is that the engine mounts have failed.
What are engine mounts?Engine mounts are components that keep the engine securely mounted to the frame of a vehicle. They're usually made of rubber and metal and are installed in such a way that they dampen the vibrations generated by the engine.
Engine mounts, on the other hand, are subject to wear and tear, and they may degrade and fail over time. When this happens, the engine will not be securely held in place, causing it to move excessively when put in gear and accelerated.
his excessive engine movement may cause a variety of problems, including excessive noise and vibration, as well as damage to other vehicle components.
Therefore, the most likely problem when an engine moves excessively when it is placed in gear and accelerated is that the engine mounts have failed.
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A student places a piece of a potato into a container of hydrogen peroxide. One observation the student makes is that bubbles form around the potato. The presence of bubbles might indicate the formation of a new substance because bubbles
a - Group of answer choices always rise to the top of a liquid.
b- are almost always perfectly spherical.
c- could show that a gas is forming.
d- usually burst after a few minutes.
Design a VHDL module
Inputs: din, clock, reset
Output dout
The first D-Flip-Flop (DFF) should have its D input connected to a module input and the last DFF should have its Q output connected to the module output. Include a clock and a reset to the module. The reset should asynchronously reset all four DFFs. Use a separate process for each DFF
Answer:
how we gonna do dat
Explanation:
Answer:https://www.chegg.com › questions-and-answers › four...
Question: Four Bit Shift Register Design a VHDL module Inputs: din, clock, reset Output dout The first D-Flip-Flop (DFF) should have its D input connected ...
1 answer
·
Top answer:
library IEEE; use IEEE.STD_LOGIC_1164.all; entity siso is port( din : in STD_LOGIC; clk : in STD_LOGIC; reset : in STD_LOGIC; dout : out STD_LOGIC ...
Explanation:
he critical resolved shear stress for copper (Cu) is 0.48 MPa (70 psi). Determine the maxi- mum possible yield strength for a single crystal
The maximum possible yield strength for a single crystal of copper is 0.96 MPa.
To determine the maximum possible yield strength for a single crystal of copper (Cu), we need to calculate the resolved shear stress (τ) at the onset of plastic deformation.
The maximum possible yield strength occurs when the resolved shear stress equals the critical resolved shear stress. Therefore, we have:
τ = 0.48 MPa (given critical resolved shear stress for copper)
Since the resolved shear stress (τ) is related to the applied stress (σ) and the Schmid factor (m) by the equation τ = σ * m, we can rearrange the equation to solve for the applied stress: σ = τ / m
The Schmid factor (m) represents the orientation of the crystal lattice with respect to the applied stress direction. For a randomly oriented single crystal, the Schmid factor is typically assumed to be 0.5.
Therefore, the maximum possible yield strength (σ_y) for the single crystal is: σ_y = τ / m = 0.48 MPa / 0.5 = 0.96 MPa
So, the maximum possible yield strength for a single crystal of copper is 0.96 MPa.
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1. Discuss inverse square law? Corire law of illustration. 2. A lamp fitted with 120 degrees angled cone reflector illuminates circular area of 200 meters in diameter. The illumination of the disc increases uniformly from 0.5 meter-candle at the edge to 2 meter-candle at the center. Determine: i) the total light received ii) Average illumination of the disc ii) Average candle power of the source. 3. Discuss the floodlighting with suitable diagrams.
1. Inverse square law states that the intensity of light varies inversely with the square of the distance from the source. It can be represented mathematically as: I = k/d², where I is the intensity of light, d is the distance from the source and k is a constant of proportionality.
This law is illustrated by the fact that as the distance from the source increases, the intensity of light decreases proportionally to the square of the distance.2. Given, diameter of the circular area, d = 200 mRadius of the circular area, r = d/2 = 100 mLamp illuminates a circular area of 200 meters in diameter with the illumination of the disc increasing uniformly from 0.5 meter-candle at the edge to 2 meter-candle at the center. The average illumination can be calculated as follows:Average illumination of the disc, I = (0.5 + 2)/2 = 1.25 meter-candleThe total light received can be calculated as follows:Total light received = (2πr² × I) = (2 × π × 100² × 1.25) = 78,540 lumensAverage candle power of the source can be calculated as follows:Average candle power = Total light received/4π = 78,540/4π = 6250 lumens3. Floodlighting is the use of high-intensity artificial light to illuminate a large area.
The purpose of floodlighting is to provide a bright and uniform light over a large area, typically for outdoor sports fields, stadiums, and other large events. It can be achieved using various types of lighting fixtures, such as floodlights, spotlights, and high-intensity discharge lamps. Suitable diagrams for floodlighting are shown below:
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4kb sector, 5400pm, 2ms average seek time, 60mb/s transfer rate, 0.4ms controller overhead, average waiting time in request queue is 2s. what is the average read time for a sector access on this hard drive disk? (give the result in ms)
To calculate the average read time for a sector access on this hard disk drive, we need to take into account several factors:
Seek Time: This is the time taken by the read/write head to move to the correct track where the sector is located. Given that the average seek time is 2ms, we can assume that this will be the typical time taken.
Controller Overhead: This is the time taken by the disk controller to process the request and position the read/write head. Given that the controller overhead is 0.4ms, we can add this to the seek time.
Rotational Latency: This is the time taken for the sector to rotate under the read/write head. Given that the sector size is 4KB and the disk rotates at 5400 RPM, we can calculate the rotational latency as follows:
The disk rotates at 5400/60 = 90 revolutions per second.
Each revolution takes 1/90 seconds = 11.11ms.
Therefore, the time taken for the sector to rotate under the read/write head is half of this time, or 5.56ms.
Transfer Time: This is the time taken to transfer the data from the disk to the computer's memory. Given that the transfer rate is 60MB/s, we can calculate the transfer time for a 4KB sector as follows:
The data transfer rate is 60MB/s = 60,000KB/s.
Therefore, the transfer time for a 4KB sector is (4/1024) * (1/60000) seconds = 0.0667ms.
Queue Waiting Time: This is the time that the request spends waiting in the queue before it is processed. Given that the average waiting time in the request queue is 2s, we can convert this to milliseconds as follows:
2s = 2000ms
Now that we have all the necessary factors, we can calculate the average read time for a sector access as follows:
Average Read Time = Seek Time + Controller Overhead + Rotational Latency + Transfer Time + Queue Waiting Time
= 2ms + 0.4ms + 5.56ms + 0.0667ms + 2000ms
= 2008.0267ms
Therefore, the average read time for a sector access on this hard disk drive is approximately 2008.03ms.
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in a gas absorption experiment a viscous fluid flows upward through a small circular tube and then downward in laminar flow on the outside. set up a momentum balance over a shell of thickness ar in the film,
In a gas absorption experiment a viscous fluid flows upward through a ... Set up a momentum balance over a shell of thickness Δrin the film,
What is gas absorption experiment ?The previous chapter provided derivations of the relationships for mass and momentum conservation—the equations of motion—in rectangular, cylindrical, and spherical coordinates.All experimental evidence suggests that these are the most fundamental equations of fluid mechanics, and that they govern any situation involving the flow of a Newtonian fluid in principle.Unfortunately, due to their all-encompassing nature, their solution in analytical terms is difficult or impossible to achieve except in relatively simple situations. However, it is critical to understand these "Navier-Stokes equations" for the following reasons:1. They lead to the analytical and exact solution of some simple but important problems, as examples in this chapter will show.
2. They serve as the foundation for future research in other areas of chemical engineering.
3. Making a few realistic simplifying assumptions can often result in approximate solutions that are perfectly acceptable for many engineering purposes. Examples include the study of boundary layers, waves, lubrication, film coating of substrates, and inviscid (irrotational) flow.
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What should you do if you encounter a fishing boat while out in your vessel?.
Answer:
if you encounter fishing or hunting boats while you are paddling, be courteous.
Give them a wide berth.
Never run overfishing lines. Be aware that anglers may have lines out to the sides of their boat or trolling behind them.
Explanation:
Reducing exposure to a risk is part of which component of risk mitigation?
A.
Tolerate
B.
Transfer
C.
Terminate
D.
Treat
A salvage part is considered aftermarket? true or false
A substance with 1 or 2 electrons in the valance shell is called what
Answer:
A conductor
Explanation:
First Order Logic
Translate into First Order Logic (FOL) the following statements. Then write the negations of the FOL propositions found.
1. All tigers are fast. Domain: animals.
2. Some tigers are fierce and dangerous. Domain: animals.
3. Every prime number is odd. Domain: positive integers.
4. All prime numbers except two are odd. Domain: positive integers.
5. All fruits are either yellow or red. Domain: produce.
6. For every integer number, there exist a bigger integer. Domain: integers.
Answer:
1) ∀x [ Tiger(x) → Fast(x) ]
2) эx [ Tiger (x) ∧ Fierce (x) ∧ Dangerous(x) ]
3) ∀x [ Prime(x) → Odd(x) ]
4) ∀x [ prime (x) ∧ ~Two(x) → Odd (x) ]
5) ∀x [ Fruits(x) → ( yellow(x) ∨ Red(x) ]
6) ∀xэy [ I(x) → greater (y, x) ]
Explanation:
Translating the statements into first Order Logic and their negations
1) All tigers are fast. Domain: animals.
∀x [ Tiger(x) → Fast(x) ]
2) Some tigers are fierce and dangerous. Domain: animals
эx [ Tiger (x) ∧ Fierce (x) ∧ Dangerous(x) ]
3) Every prime number is odd. Domain: positive integers
∀x [ Prime(x) → Odd(x) ]
4) All prime numbers except two are odd. Domain: positive integers
∀x [ prime (x) ∧ ~Two(x) → Odd (x) ]
5) All fruits are either yellow or red. Domain: produce.
∀x [ Fruits(x) → ( yellow(x) ∨ Red(x) ]
6) For every integer number, there exist a bigger integer. Domain: integers.
∀xэy [ I(x) → greater (y, x) ]
Answer:
Answer:
1) ∀x [ Tiger(x) → Fast(x) ]
2) эx [ Tiger (x) ∧ Fierce (x) ∧ Dangerous(x) ]
3) ∀x [ Prime(x) → Odd(x) ]
4) ∀x [ prime (x) ∧ ~Two(x) → Odd (x) ]
5) ∀x [ Fruits(x) → ( yellow(x) ∨ Red(x) ]
6) ∀xэy [ I(x) → greater (y, x) ]
Explanation:
Translating the statements into first Order Logic and their negations
1) All tigers are fast. Domain: animals.
∀x [ Tiger(x) → Fast(x) ]
2) Some tigers are fierce and dangerous. Domain: animals
эx [ Tiger (x) ∧ Fierce (x) ∧ Dangerous(x) ]
3) Every prime number is odd. Domain: positive integers
∀x [ Prime(x) → Odd(x) ]
4) All prime numbers except two are odd. Domain: positive integers
∀x [ prime (x) ∧ ~Two(x) → Odd (x) ]
5) All fruits are either yellow or red. Domain: produce.
∀x [ Fruits(x) → ( yellow(x) ∨ Red(x) ]
6) For every integer number, there exist a bigger integer. Domain: integers.
∀xэy [ I(x) → greater (y, x) ]
Explanation:
4kj of energy are supplied to a machine used for lifting a mass.The force required is 800N.If the machine has an efficiency of 50%. To what height will it lift the mass?
A three-phase motor rated 25 hp, 480 V, operates with a power factor of 0.74 lagging and supplies the rated load. The motor efficiency is 96%. Calculate the motor input power, reactive power and current.
Answer:
the motor input power is 19.42 KW
the Reactive power is 17.65 KVAR
Current is 31.56 A
Explanation:
Given that;
V = 480V
h.p = 25 hp
p.f = 0.74 lagging
n_motor = 96%
so output = 25hp
and we know that;
1hp = 746 watt
watt = hp × 1hp
so output in watt = 25 × 746 = 18650 Watt = 18.65 KW
n_motor = (output / input) × 100
96 = 1865 / Input
96Input = 1865
Input = 1865 / 96
Input = 19.42 KW
Therefore the motor input power is 19.42 KW
P = √( 3 × V × I × cos∅)
19.42 = √( 3 ×480 × I × 0.74)
I = 31.56 A
Therefore Current is 31.56 A
Q = √( 3 × V × I × sin∅)
we know that
cos∅ = 0.74
so ∅ = cos⁻¹(0.74) = 42.26
so we substitute
Q = √( 3 × 480 × 31.56 × sin(42.26))
= 17.65 KVAR
Therefore the Reactive power is 17.65 KVAR
Question 5
Not yet answered
Marked out of 1.00
P Flag question
Which one of the following torque is produced by the spring in PMMC instrument?
O a. Damping
O b. Forcing
OC. Deflection
O d. Controlling
Answer:
A
Explanation:
Actually I don't know anything about American history, I chose it because South Africa is not in the least
Discuss three objectives of Tariff and elaborate on three characteristics of it
Answer:
The Tariff can be called the custom duty tax. This tax is levied on customers when they have been crossed the good from the national boundaries.
Explanation:
The words called custom, duty is used with tariff services. The tariff is laid on people because to save the domestic product or to raise the revenue. The tariff is firstly used to protect the product and then maybe to yield the revenue.
The domestic products bear tariffs if the goods are equal to the tariff or the foreign brands bear the tariff if the tariff is equal to the products. Then the duty will be equal and beneficial for both services.
The tariff has been classified into three categories such as:
The transit dutyThe export dutiesThe import duties.
lateral buckling is inhibited by the rigid frame action of the arches and the horizontal elements linking the two arches to each other. b. roll-thru buckling is partly inhibited by the combined effect of the angled suspenders and the deadweight of the roadbed. c. roll-thru buckling is partly inhibited by the road bed, which attaches to the arch at about the quarter points of the arch. d. tension elements in the roadbed are all the horizontal force required to achieve full arch action over the full length of the arches. e. roll-through buckling is inhibited by the rigid frame action of the arches and the horizontal elements linking the two arches to each other.
Lateral buckling is inhibited by the rigid frame action of the arches and the horizontal elements linking the two arches to each other. This provides stability and support for the structure.
Roll-thru buckling is partly inhibited by the combined effect of the angled suspenders and the deadweight of the roadbed, as well as by the roadbed attaching to the arch at about the quarter points of the arch. This attachment helps distribute the load and prevent buckling. Tension elements in the roadbed provide the horizontal force required to achieve full arch action over the full length of the arches, ensuring stability. Finally, roll-through buckling is also inhibited by the rigid frame action of the arches and the horizontal elements linking the two arches to each other, maintaining the overall structural integrity.Learn more about Lateral buckling: https://brainly.com/question/31519659
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The statement that best describes the buckling mechanisms of an arch bridge is e. roll-through buckling is inhibited by the rigid frame action of the arches and the horizontal elements linking the two arches to each other.
Arch bridges are designed to support loads primarily through axial compression forces. However, they are also susceptible to different types of buckling under certain loading conditions. Roll-through buckling is one of the most critical types of buckling in arch bridges, where the arch rolls or twists laterally due to insufficient lateral bracing, resulting in instability and possible collapse.To inhibit roll-through buckling, arch bridges typically incorporate horizontal elements that link the two arches, creating a rigid frame action that can resist lateral forces. The angled suspenders also provide additional bracing to reduce the lateral displacement of the arches. In contrast, tension elements in the roadbed primarily resist the vertical forces that act on the bridge, such as the weight of the traffic and the weight of the bridge itself.In summary, the rigid frame action of the arches and the horizontal elements linking the two arches together are critical factors that inhibit roll-through buckling in an arch bridge.
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4. Three conveyor belts are arranged to transport material and the conveyor belts must be started in reverse sequence (the last one first and the first one last) so that the material does not get piled on to a stopped or slow-moving conveyor. Each belt takes 45 seconds to reach full speed. Design a ladder logic that would control the start and stop of this three-conveyor system
A normally open (NO) start push button (PB1) is connected in parallel with a normally closed (NC) stop push button (PB2).
When PB1 is pressed and PB2 is not pressed, the output coil (O:2/0) of the conveyor 1 motor contactor is energized, starting the conveyor 1.This ladder logic design ensures that the conveyor belts are started in reverse sequence and that each conveyor stops once it reaches full speed. The start push buttons (PB1, PB3) should be pressed sequentially to start the conveyor belts, and the stop push buttons (PB2, PB3, PB4) can be pressed at any time to stop the respective conveyors. The limit switches (LS1, LS2, LS3) are used to detect when each conveyor reaches full speed and initiate the stop sequence.
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Describe with an example how corroded structures can lead to environment pollution?
Estimating is important in construction industry because
Select one:
a. Contractors need to know the amount of mark-up
b. Projects are awarded on serious competition
c. Construction industry has tendency for complex constructions
d. The regulations of government for construction industry changes
Your answer is correct,
Answer:
a( contractors need to know the amount of markup)
because the contractor should have a long term vision for a proper satisfaction to the people.
Drilling mud does all of the following EXCEPT
cools the bit.
allows gas to escape.
flushes cuttings out of the hole.
keeps oil underground.
Drilling mud does all of the following EXCEPT keeps oil underground.
Does Drilling mud keeps oil underground?Drilling mud is a specialized fluid used in drilling operations to facilitate the drilling process and maintain the stability of the wellbore.
One of the functions of drilling mud is to cool the drill bit by circulating it through the bit and carrying away heat generated during drilling. This helps prevent the bit from overheating and prolongs its lifespan.
Drilling mud acts as a barrier, preventing the gas from entering the wellbore and causing blowouts. It helps control the pressure and allows for safe drilling operations.
Drilling mud has several important functions in drilling operations, including cooling the bit, allowing gas to escape, and flushing cuttings out of the hole. However, it is not intended to keep oil underground.
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Please help ASAP!!
What is the main function of a voltage regulator?
A) A voltage regulator's main task is to maintain a constant voltage level.
B) A voltage regulator's main task is to provide an amplified power source.
C) A voltage regulator's main task is to create a path of least resistance for electrons.
D) A voltage regulator's main task is to control electric current flowing from a power source.
E) A voltage regulator's main task is to convert alternating current to direct current
Answer:
The answer you are looking for is D
Answer:
Option A
Explanation: Voltage regulator, any electrical or electronic device that maintains the voltage of a power source within acceptable limits.
Show that the following two propositions are logically equivalent by developing series of logical equivalences. (i) (((p→q)↔(¬q∨r))∧(p→¬r))→¬((s∨r)←(¬r∧p)), (ii) (r∨(¬q∧(s∨¬p)))→(p∧(¬q∨r)) Question 4: Prove the following statement by contradiction for any integers a,b,c. "If a 2
+b 2
=c 2
, then a or b is even"
Logical equivalence between propositions is established by demonstrating that they have the same truth value in all possible cases through a series of logical equivalences.
Is it possible to construct a triangle with side lengths of 3 cm, 5 cm, and 8 cm?To prove the logical equivalence between the two given propositions, we need to demonstrate that they have the same truth value in all possible cases.
This can be done by applying a series of logical equivalences, such as using the properties of conditional statements, negation, conjunction, disjunction, and biconditional statements.
By systematically manipulating the logical expressions and showing the equivalence between their constituent parts, we can establish that the two propositions are logically equivalent.
The process involves analyzing the logical structure and the relationships between the logical operators and connectives within each proposition.
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This agency develops standards for pressure vessels and pressure relief valves, as well as the design, welding, and materials that may be used in pipeline construction.
Select one:
a. American Petroleum Institute
b. American Society of Mechanical Engineers
c. American Gas Association
d. National Fire Protection Association
Answer:
b. American Society of Mechanical Engineers
Explanation:
The "American Society of Mechanical Engineers" (ASME) is an organization that ensures the development of engineering fields. It is an accreditation organization that ensures parties will comply to the ASME Boiler and Pressure Vessel Code or BPVC.
The BPVC is a standard being followed by ASME in order to regulate the different pressure vessels and valves. Such standard prevents boiler explosion incidents.
What accident theory divides an accident into three phases: pre-contact, contact, and post-contact?
The accident theory divides an accident into three phases: pre-contact, contact, and post-contact is the domino theory.
What is the domino theory?The domino theory is a geopolitical theory that holds that changes in democracy in one country have a domino impact on surrounding countries.
The multiple-factor theory examines not just the three domino theory phases—precontact, contact, and post-contact—but also additional elements that influence an accident, such as management, machine, media, and man.
Therefore, the domino theory separates an accident into three phases: pre-contact, contact, and post-contact.
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Is the MI-24 Hind the most widely exported combat helicopter in the world?
Can someone please help me the answer is supposed to be A but I don’t know why
We can see here that the element in the circuit that is possibly a resistor is Element B.
What is a resistor?A resistor actually known to be a electrical component or device that has two terminals through which current enters and leaves. A resistor is known to limit or regulate the flow of electrical current in an electronic circuit. Resistors are known to be used in order to also provide a kind of specific voltage for a device that is active like a transistor.
Resistors are used in electrical and electronics in order to control the flow of current, reduce current, divide voltages, adjust the level of signals and terminate transmission lines. It is used for other purposes in the electronics field.
We see here that element B selected above is a resistor. The arrow on the head is pointing downward which indicates that current is entering.
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trees are removed in sections parallel to a feature such as a rode
Trees are removed in sections parallel to features like roads to provide visibility, safety, and easier access for transportation and construction purposes.
The process of removing trees in sections parallel to a feature such as a road involves carefully cutting down trees to create a clear path or space. This is done for various reasons, including visibility and safety for drivers and pedestrians, as well as easier access for transportation of goods and people.
Additionally, it facilitates construction projects that require open areas adjacent to roads. This method of tree removal is essential for urban planning, infrastructure development, and maintenance of the surrounding environment. However, it is crucial to balance this activity with sustainable practices, such as reforestation, to minimize the negative impact on the ecosystem and maintain a healthy environment.
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g Calculate a better value for the convection coefficient using resources from heat transfer. Assume forced convection of the air inside the chimney moving at 4 ft/s. Assume convection on the outside of the chimney is due to natural convection. Use the temperature plots or probe of the inside and outside surfaces to calculate the bulk fluid temperature and obtain accurate material properties for air based on these temperatures. Hint: Your new results for h should on the same order of magnitude of the value I provided. If it isn't, check your units. Update to you calculated values for h and resolve your model.
Answer:results for h should on the same order of magnitude of the value I provided. If it isn't, check your units. Update to you calculated values for h and resolve your model.
Explanation:
Water at 15degree Celsius passes through 2cm internal diameter copper tubes at a rate of
0.55kg/s. Determine the pumping power per meter of pipe length required to maintain this flow
at the specified rate.
Answer :
Im not really sure tbh
Explanation: Water at 15°C is heated by passing it through 2-cm internal-diameter thin-walled copper tubes. Heat is supplied to the water by steam that condenses outside the copper tubes at 120°C. If water is to be heated to 65°C at a rate of 0.2 kg/s, determine (a) the length of the copper tube that needs to be used and (b) the pumping power requirement to overcome pressure losses. Assuming the entire copper tube to be at steam temperature of 120°C
Calculate the power required for heating a 1.5 kg sample of water for 10 minutes in a thermal system. What is the amount of energy required to raise the temperature of the water from 25°C to 60°C ? How much minimum amount of power does the heater have to supply per unit time? Why does the actual power rating of the heater need to be higher than this minimum amount? (The specific heat of water is 4.18 J/g°C .)
*60 points to anyone who can help*
Answer:
Power= Heat energy\ time
heat energy= mc∆T
specific heat of water = 4180
1.5*4180*(60-25)
=219450
time = 10× 60= 600 secs
power = 219450/600
Power= 365.75 Watt
=0.37 KW
Explanation:
the actual has to be bigger because the heater might be required to handle more ...also to accommodate extra energy.