Galileo's early telescopes revealed the four large moons of Jupiter, the rings of Saturn, and its large moon Titan.

a. True
b. False

Answer:  343

Explanation:  i know it sounds weird but its right

The frequency for the maximum constructive interference will be 343 Hz.

The result of two or more wave trains flowing in opposite directions on a crossing or coinciding pathways. This phenomenon is known as the interference of waves.

The effect is the sum of the individual wave amplitudes at each site where more than one wave is present.

From the constructive interference;

\(\rm L_1-L_2 = 2 \lambda \\\\ 2\lambda=8-6 \\\\ \lambda= 1 \ m\)

The frequency is;

\(\rm f= \frac{c}{\lambda} \\\\ f= \frac{343}{1} \\\\ f= 343 \ Hz\)

Hence,the frequency for the maximum constructive interference will be 343 Hz.

To learn more about the interference of waves refer to the link;

brainly.com/question/16098226

#SPJ5

The coal price of $90/ton with a heat content of 7000 BTU per pound is D: $6.42/MMBtu.

The formula to calculat mmbtu from tons is as follows -

Price per mmbtu = price per ton × 500/ BTU per pound

Keep the values in formula to find the price per mmbtu

Price per mmbtu = (90×500)/7000

Performing multiplication in numerator on Right Hand Side of the equation

Price per mmbtu = 45000/7000

Performing division on Right Hand Side of the equation to find the price per mmbtu for coal

Price per mmbtu = $6.42/mmbtu

Thus, the correct option is D: $6.42/MMBtu.

Learn more about coal -

https://brainly.com/question/22647554

#SPJ4

Answer:

____________

in real world conditions?

it seems the most plausible.

Answer (B)

Cars are tested on closed tracks and race tracks so rule out A, D. Tha leaves us with B, C. C is kind of a real-world situation so the answer is most likely, B.

The kinematic viscosity of the oil at 84°C is 1004.736 mm²/s.

To determine the kinematic viscosity of the oil at 84°C, we can use the Saybolt Universal Seconds (SUS) viscosity measurement and convert it to kinematic viscosity in mm²/s.

The conversion formula for Saybolt Universal Seconds (SUS) to kinematic viscosity in mm²/s at 84°C is:

Kinematic viscosity (mm²/s) = SUS value × 0.216

Substituting the given SUS value of 4646, we can calculate the kinematic viscosity:

Kinematic viscosity = 4646 SUS × 0.216 = 1004.736 mm²/s

Therefore, the kinematic viscosity of the oil at 84°C is approximately 1004.736 mm²/s.

Read more on viscosity here: https://brainly.com/question/2568610

#SPJ11

Answer:

Balanced forces acting on a stationary object cause the object to remain at rest. True: Forces can give energy to an object it acts on causing the object to change it state of motion. If forces acting on an object are balanced, they do not cause a change in motion.

Answer:

False

Explanation:

It is NOT possible for just three forces to be acting upon an object and they still balance each other. A free-falling object experiences a balance of forces.

A characteristic of universal life insurance is that the cash value of the policy will always keep the coverage in force.

Universal life insurance is a type of permanent life insurance that offers flexibility in premium payments and death benefit coverage. One of its key features is the accumulation of a cash value component within the policy. This cash value grows over time through premium payments and interest credited to the policy.

The cash value serves as a reserve within the policy and can be used to cover premium payments, ensuring that the coverage remains in force even if the policyholder is unable to make premium payments for a certain period. It provides a cushion that helps prevent the policy from lapsing due to non-payment of premiums.

While universal life insurance may offer options such as a minimum interest rate guarantee or premium waivers for certain circumstances like disability, the specific options mentioned in the remaining answer choices are not inherent characteristics of universal life insurance.

To know more about universal life insurance, visit:

https://brainly.com/question/27992972

#SPJ11

Answer: 46125 kg*m/s West

Explanation:

Momentum = mass*velocity

Momentum = 3750kg * 12.3 m/s

Momentum = 46125 kg*m/s West

Explanation:

Wave speed  =  (frequency)  x  (wavelength)

                      =  (266 /sec)  x  (1.3 meters)

the wavelength of this wave 1.5 x 104 m.

The frequency of the radio wave is given as 2 x 104 Hz.

The speed of the radio wave is given as 3 x 108 m/s.

The formula for finding wavelength (λ) of a wave is given by:

λ = v/fλ = Speed of wave/ Frequency of wave

On substituting the values, we get:

λ = 3 x 10⁸ m/s/2 x 10⁴ Hzλ = 1.5 x 10⁴ m

Therefore, the wavelength of the radio wave is 1.5 x 10⁴ m.

Therefore, option D is the correct answer.

learn more about radio wave here

https://brainly.com/question/29787341

#SPJ11

Answer:

The maximum height above the ground the rocket reaches is 123.1 m.

Explanation:

Let's find the final velocity at a distance of 200 m:

\( v_{f}^{2} = v_{0}^{2} + 2ad \)

Where:

\(v_{f}\) is the final speed =?

v₀ is the initial speed =0

a is the acceleration = 1.25 m/s²

d is the distance = 200 m

\(v_{f} = \sqrt{2ad} = \sqrt{2*1.25 m/s{2}*200 m/s} = 22.4 m/s\)    

Now, when the engines of the rocket turn off and it is subject only to gravity, the height reached is:

\( v_{fy}^{2} = v_{0y}^{2} - 2gh \)

Where:

\(v_{f}\) = 0

\(h = -\frac{v_{fy}^{2} - v_{0y}^{2}*sin(\theta)}{2g} = \frac{(22.4*sin(35))^{2}}{2*9.81 m/s^{2}} = 8.4 m\)

Finally, the maximum height above the ground is:

\( h_{max} = h + H \)

Where H is the vertical component of the 200.0 meters.

\(h_{max} = h + H = 8.4 m + 200.0 m*sin(35) = 123.1 m\)

Therefore, the maximum height above the ground the rocket reaches is 123.1 m.

I hope it helps you!                                                          

Answer:

B. Electron

Static charge is produced by electron transfer.

Explanation:

Answer A: The neutron does not possess a charge and is said to be neutral.

Answer D: Protons and neutrons never move from object to object.

Only negative charges can move freely from one object to another. The energy that comes from these charges particles is called electrical energy.

....

Hope this answer can help you.

The answer is an electron.

The change in internal energy for an isothermal process when 10.0 J of heat flows from the system is 10.0 J. The correct option is B).

In an isothermal process, the temperature of the system remains constant. According to the first law of thermodynamics, the change in internal energy (ΔU) of a system is equal to the heat (Q) added to or removed from the system minus the work (W) done by or on the system.

Since the process is isothermal, the change in temperature is zero (∆T = 0). Therefore, the change in internal energy (∆U) is equal to the heat flow (Q) for this process.

Given that the heat flow (Q) is 10.0 J, the change in internal energy (∆U) is also 10.0 J. Therefore, the correct option is B).

To know more about isothermal process, refer to the link:

https://brainly.com/question/12023162#

#SPJ11

The correct option is A) be especially suitable

A red-dyed-water-in-glass thermometer would be especially suitable to measure temperatures between 0 degrees Celsius and 8 degrees Celsius. This is within the typical range for which such thermometers are designed to provide accurate readings. The red dye helps in reading the temperature by making the liquid column easier to see against the background.

This is because the freezing point of water is 0 degrees C, and the boiling point is 100 degrees C. The range of 0 to 8 degrees C falls within the temperature range that can be accurately measured using a red-dyed-water-in-glass thermometer. This type of thermometer works by measuring the expansion or contraction of a liquid (in this case, water) in response to changes in temperature. The liquid expands as it gets warmer and contracts as it gets cooler.

However, it is worth noting that red-dyed-water-in-glass thermometers are not always the most accurate or precise instruments for measuring temperature, particularly at extreme temperatures or when high accuracy is required. Other types of thermometers, such as digital thermometers or thermocouples, may be more appropriate in certain situations.

To know more about thermometer refer here

https://brainly.com/question/20411033#

#SPJ11

The object (2)  in the table is the object that would weigh highest on earth.

We know that the mass of the object would be constant irrespective of the place where the object is weighed. The weight of the object on the other hand is dependent on the location where the object is weighed. If the object is weighed on earth, the weight of the object would be dependent on the value of the acceleration due to gravity of the object.

Let us obtain the masses of each of the materials;

Using force = mass * acceleration

mass = force/acceleration

1) 80 /5.5 = 14.5 Kg (Weight = 145 N)

2) 55/2.0 = 27.5 Kg (Weight = 275 N)

3) 23/3.7 = 6.2 Kg (Weight = 62 Kg

4) 63/6.0 = 10.5 Kg (Weight = 105 N)

The weight of the  object (2) is the heaviest on earth.

Learn more about force:https://brainly.com/question/13191643

#SPJ1

The "k" value in Boyle's Law, Charles' Law, Gay-Lussac's Law, and Avogadro's Law represents a proportionality constant specific to each law, while the constant "R" in the Ideal Gas Law is the universal gas constant that relates the properties of gases.

Boyle's Law: Boyle's Law states that the pressure (P) of a gas is inversely proportional to its volume (V) at constant temperature (T). The equation is given by P₁V₁ = P₂V₂, where the proportionality constant is not represented by a specific symbol but is implied by the law itself.

Charles' Law: According to Charles' Law, the volume (V) of a gas is directly proportional to its temperature (T) at constant pressure (P). The equation is given by V₁/T₁ = V₂/T₂, where the proportionality constant is represented by the symbol "k."

Gay-Lussac's Law: Gay-Lussac's Law states that the pressure (P) of a gas is directly proportional to its temperature (T) at constant volume (V). The equation is given by P₁/T₁ = P₂/T₂, where the proportionality constant is represented by the symbol "k."

Avogadro's Law: Avogadro's Law states that the volume (V) of a gas is directly proportional to the number of moles (n) of gas at constant temperature (T) and pressure (P). The equation is given by V₁/n₁ = V₂/n₂, where the proportionality constant is represented by the symbol "k."

On the other hand, the Ideal Gas Law combines all these laws into a single equation and relates the pressure (P), volume (V), temperature (T), and number of moles (n) of a gas. The equation is given by PV = nRT, where "R" is the universal gas constant. The constant "R" has a specific value of 8.314 J/(mol·K) or 0.0821 L·atm/(mol·K), depending on the unit system used.

The "k" value in Boyle's Law, Charles' Law, Gay-Lussac's Law, and Avogadro's Law represents a proportionality constant specific to each law. On the other hand, the constant "R" in the Ideal Gas Law is the universal gas constant that relates the properties of gases in a broader sense and has a fixed value across all gases.

To know more about Law, visit

brainly.com/question/26083484

#SPJ11

Answer:

He must be riding on a horse named Saturday.

Explanation:

He rode Saturday on Friday, stayed in the town for 3 days and left on his horse, named Saturday.

I've heard this many times.

he left his house on a Thursday got their on a Friday and left on Saturday Explanation:

this is the best i can do

Answer:

The wavelength of the light determines its characteristics. For example, short wavelengths are high energy gamma-rays and x-rays, long wavelengths are low energy radio waves. The whole range of wavelengths is called the electromagnetic spectrum.

By analyzing the velocity-time graph, we can determine the maximum speed at the end of the constant speed phase and the disability during the deceleration phase.

To sketch the velocity-time graph and determine the maximum speed and disability, let's break down the motion into three phases:

Phase 1: Acceleration

The object starts from rest and undergoes acceleration for 40 seconds at a constant speed. During this phase, the velocity increases linearly with time. The slope of the velocity-time graph will be a straight line with a positive gradient.

Phase 2: Constant Speed

After 40 seconds, the object continues to move at a constant speed for the next 100 seconds. During this phase, the velocity remains constant, resulting in a horizontal line on the velocity-time graph.

Phase 3: disability

After 140 seconds, the object is brought to rest with uniform disability over a duration of 20 seconds. The velocity decreases linearly with time during this phase. The slope of the velocity-time graph will be a straight line with a negative gradient.

To determine the maximum speed, we need to find the highest point on the velocity-time graph. In this case, it occurs at the end of phase 2 when the object is moving at a constant speed. The maximum speed is reached at this point.

To determine the disability, we need to find the slope of the line during phase 3. The negative gradient of the velocity-time graph during the deceleration phase represents the magnitude of the uniform disability.

Therefore, by analyzing the velocity-time graph, we can determine the maximum speed at the end of phase 2 and the disability during phase 3.

For more such questions on velocity-time graph

https://brainly.com/question/28064297

#SPJ8

Answer:

mass wasting

Explanation:

The system described by the transfer function G(s) = -co² s² + 2a + w², with a damping ratio of 1.3 and a natural frequency of 0.5, has an overdamped unit step response. So, the correct option is (E)

The transfer function of the system is given as G(s) = -co² s² + 2a + w², where co represents the damping ratio, a represents an arbitrary constant, and w represents the natural frequency of the system. We are given that the natural frequency is 0.5 and the damping ratio is 1.3.

To determine the type of unit step response, we need to analyze the damping ratio (co) in relation to the critical damping value (co_critical).

The critical damping ratio (co_critical) is defined as the value where the system is on the threshold between being overdamped and underdamped. It is given by the formula co_critical = 2 * sqrt(a * w²).

In our case, the natural frequency (w) is 0.5, so we can calculate co_critical as follows: co_critical = 2 * sqrt(a * 0.5²).

Since the damping ratio (co) is given as 1.3, we can compare it with co_critical to determine the type of unit step response.

If co > co_critical, the system is considered overdamped (Option E).

If co = co_critical, the system is considered critically damped (Option D).

If co < co_critical, the system is considered underdamped (Option C).

Based on the given values, we can determine that the system is overdamped (Option E) because the damping ratio (1.3) is greater than the critical damping ratio.

To know more about damping ratios, refer here:

https://brainly.com/question/31463018#

#SPJ11

Answer:

Because the magnetic field of earth and the atmosphere divert and stop that waves

Answer:

D. the frequency of gamma rays is greater.

Explanation:

Gamma rays occupy the short-wavelength end of the spectrum; they can have wavelengths smaller than the nucleus of an atom. Visible light wavesare one-thousandths the width of human hair--about a million times longer than gamma rays. Radio waves, at the long-wavelength end of the spectrum, can be many meters long.

HAVE A WONDERFUL REST OF THE DAYYYY! :3

Answer:

F

Explanation:

When comparing two vector quantities you have to compare both magnitude and direction,but for scalar you only compare magnitude

❄ Hi there,

the answer is F, false.

∵

Vectors have both magnitude and direction, where:

magnitude = length of the arrow that represents the vector

direction = angle

∴ quantities that have only magnitude are not called vector quantities

❄

Answer:

Force = 3 Newton

Explanation:

Given the following data;

Mass = 200 g to kilograms = 200/1000 = 0.2 kg

Acceleration = 15 m/s²

To find the force;

Force = mass * acceleration

Force = 0.2 * 15

Force = 3 Newton

The charge of a particle in a magnetic field can be determined by measuring the force, velocity, and strength of the magnetic field using the Lorentz force equation. There are various methods to measure the charge, such as using a particle accelerator or mass spectrometer.

In a magnetic field, charged particles experience a force that can be used to determine their charge. This force, known as the Lorentz force, is given by the equation F = q(v x B), where F is the force, q is the charge of the particle, v is the velocity of the particle, and B is the strength of the magnetic field.

To determine the charge of a particle in a magnetic field, you can measure the velocity of the particle and the strength of the magnetic field, and then measure the force experienced by the particle. By rearranging the equation F = q(v x B), you can solve for the charge q.

It is important to note that the Lorentz force only applies to charged particles that are in motion. If the particle is stationary, it will not experience any force in a magnetic field.

In practice, there are many ways to measure the charge of a particle in a magnetic field, such as using a particle accelerator or a mass spectrometer. These techniques involve manipulating the motion of the particle in a controlled way and measuring the resulting forces and velocities to determine its charge.

To learn more about magnetic fields

https://brainly.com/question/3160109

#SPJ4

Complete question:

How can I know the charge of a particle in a magnetic field?

Answer:

true

Explanation:

Answer:

True.

Explanation:

Answer: velocity is the study of how fast an object changes its place, or is displaced.

Explanation: An example would be how fast a basketball reaches the other side of a gym, the acceleration and speed are measured and calculated to find velocity

The maximum length the strig can have is 1.89 x 10^10 m.  

Tensile stress may be defined as the external forces acting per unit area on a material which cause the material to stretch. This stress acts along the axis of the material.

Density is given by the formula:

Density= mass/volume

So, volume is given by;

Volume= mass/density

Mass of string in kg= 4.2/1000= 0.0042 kg.

Density of steel is in kg/m^3.

Then volume V will be;

V= 0.0041/7710 = 5.31 x 10-7m^3

Now we know that stress = Force/Area

Thus, Area is given by; Area = force/stress => 900/7*10^8= 2795.95m^2

Length can be determined by= volume/Area =>5.31^10-7/2795.95

Therefore, the maximum Length of string is = 1.89 x 10^10 m.

Learn more about Tensile Strength at:

brainly.com/question/14103537

#SPJ4

Complete Question:

If A string or rope will break apart if it is placed under too much tensile stress. Thicker ropes can withstand more tension without breaking because the thicker the rope, the greater the cross-sectional area and the smaller the stress. One type of steel has a density of 7710kg/m3 and will break if the tensile stress exceeds 7.0×108N/m2. You want to make a guitar string from a mass of 4.2 g of this type of steel. In use, the guitar string must be able to withstand a tension of 900 N without breaking. Your job is the following.

(a) Determine the maximum length the string can have

The density of the SF₆ gas at the given pressure and temperature is 2.96 g/l.

The given parameters:

The molecular mass of the SF₆ gas is calculated as follows;

M of SF₆ = 32 + (6 x 19) = 146 g/mol

The density of the SF₆ gas is calculated by applying ideal gas law as follows;

\(PV = nRT\\\\PV = \frac{m}{M} RT\\\\PM = \frac{m}{V} RT\\\\PM = \rho RT\\\\\rho = \frac{PM}{RT}\)

where;

\(\rho = \frac{0.5 \times 146}{0.0821 \times 300} \\\\\rho = 2.96 \ g/l\)

Thus, the density of the SF₆ gas at the given pressure and temperature is 2.96 g/l.

Learn more here:https://brainly.com/question/21912477