An inductor has an inductance of 0. 080 h. the voltage across this inductor is 55 v and has a frequency of 650 hz. what is the current in the inductor?

According to the Newtons third law of motion, the collision between the bumper car and the rider will affect both of them as both the systems have mass and are moving with certain velocities.

Collision is a case where one moving object or person violently collides with another.

The law of interaction or the Newton's third law of motion, says that if one body exerts a force on a second body, the second body exerts a force equal in magnitude and opposite in direction on the first body.

As we know momentum is P = m*v i.e. momentum (P) is directly proportional to the mass and velocity.

Heavier bodies have more mass, therefore have more momentum.

here, the bumper car is the heavy system and hence, it will exerts more impact on the rider.

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Voltage amplifiers use a voltage input signal and a current output signal. This statement is false.

A voltage amplifier uses a voltage input and a voltage output.

In an electric circuit, the job of a voltage amplifier is to amplify the high input voltage as compared to the low input voltage.

In general, transistor function as voltage amplifiers in a circuit and are used to increase the power, voltage, and current of a signal.

Generally, these amplifiers are used in audio devices and equipment, radio and television broadcasting, wireless communications, and so on.

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Therefore, the maximum distance that the landing ramp can be placed from the takeoff ramp so that the cyclist still lands on it is 75.5 m. Hence, option C is correct.

We have to find the maximum distance that the landing ramp can be placed from the takeoff ramp so that the cyclist still lands on it, given that a motorcycle daredevil is attempting to jump from one ramp onto another. The takeoff ramp makes an angle of 18.00 above the horizontal, and the landing ramp is identical. The cyclist leaves the ramp with a speed of 33.5 m/s.

Let's begin with the solution:

Consider the diagram shown below:

Here, AB = Take off ramp, BC = Landing rampθ = 18.0°, Speed of the cyclist, u = 33.5 m/s

It is given that the landing ramp is identical to the takeoff ramp.

So, the angle between the ramp and horizontal is also θ = 18.0°.

The vertical and horizontal components of velocity at point A are given by:

v_y = u sin θ and v_x = u cos θ

The time of flight of the cyclist from A to C is given by:

t = [2v_y] / g Where g is the acceleration due to gravity= 9.81 m/s²

The horizontal distance covered by the cyclist in the time of flight is given by:

x = v_x t …..(1)

The height of the landing ramp (point C) from the ground is given by:

y = BC sin θ …..(2)

The cyclist has to land on the landing ramp (point C).

Therefore, the height of the landing ramp must be equal to the height at which the cyclist leaves the takeoff ramp (point A).

Therefore, from the diagram shown above, we have:

y = AB sin θ …..(3)

From (2) and (3), we have:

AB sin θ = BC sin θ

Or

AB = BC ... (identical ramps)

From equation (1),

we have:

x = v_x

t= u cos θ [2v_y / g]... (4)

Substituting the values of u, θ, v_y and g,

we get:

x = [33.5 m/s] cos 18.0° [2 (33.5 sin 18.0°) / 9.81 m/s²]= 75.5 m (approximately)

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(a) The mass of the brass ball on the earth and the certain planet is 28 kg.

(b) the weight of the brass ball on earth is 274.4 N and certain planet is 28g N.

We need to know about weight to solve this problem. The weight of an object depends on the mass and the gravitational acceleration applied to a specific place. Weight can be written as

W = m . g

where W is weight, m is mass and g is the gravitational acceleration.

From the question above, the given parameter is

m = 28 kg

g earth = 9.8 m/s²

The mass of the brass ball should same whether at earth or at a certain planet.

The weight on earth is

W = m . gearth

W = 28 . 9.8

W = 274.4 N

Let's assume that certain planet has gravitational acceleration g. Hence

Wa = ma . g

Wa = 28 . g N

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If the specific gravity of both the object and the liquid are equal at 0.900, this means that both the object and the liquid have the same density. In this case, the object will float.

This is because the buoyant force acting on the object is equal to the weight of the displaced liquid. Since the object and the liquid have the same density, the weight of the displaced liquid is equal to the weight of the object. Therefore, the buoyant force acting on the object is equal to its weight, and the object will float just beneath the surface of the liquid with some portion submerged.

It is important to note that if the specific gravity of the object was greater than the specific gravity of the liquid, the object would sink to the bottom of the liquid. Conversely, if the specific gravity of the object was less than the specific gravity of the liquid, the object would float on top of the liquid without sinking.

Answer:

300 Watt

Explanation:

power=(450/3)*2

In order to strengthen the battery, we can alter it to include new metals with even greater differences in electronegativity. Electrons will then flow from Zinc to Lithium.

Electrons in orbit that are negatively charged encircle the outside of the nucleus. Because they rotate so swiftly, it can be difficult for scientists to keep an eye on them. They are the smallest particles in an atom and therefore are drawn to the positive charges of protons; one proton can carry 2000 of them.

An electron, that has a negative charge, is the smallest and least substantial part of an atom. Both the protons and electrons are equal in number in a neutral atom. For instance, a hydrogen atom only has one proton or one electron. While the atomic nucleus has 92 protons, which means 92 electrons.

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The paths of the light waves that interfere cause first-order lines to differ in length by the wavelength of the light.

The phenomenon of wave interference occurs when two waves meet while traveling in the same medium.

As the two light waves interfere in the first order they interfere by differing the consecutive lengths by the wavelength of the light. The wavelength of the light can be defined as the distance between identical points (adjacent crests) in the adjacent cycles of a wave signal propagated in space or along a wire.

Hence, it can be concluded that the paths of the light waves that interfere cause first-order lines to differ in length by the wavelength of the light.

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Answer:

(i) It will take longer (75/22 times) the time to boil a given quantity of water compared to when the current is working at its rated capacity

(ii) The reasons are;

(1) For economy; most of the appliances in the home only require low power circuitry with thinner wire while a separate high power circuitry is created directly from the main supply for the high electric power rated appliances

(2) For safety; to prevent the over heating of the electric circuits when an high electric power appliance needs to be connected an high power electric power outlet has to be specified

Explanation:

(i) The power rating of the kettle = 3 kW

The voltage rating of the circuit, V = 220 V

The current rating, I = 4 A

The formula for electric power = I² × R = I × V

Therefore, we have;

Power produced = 220 V × 4 A = 880 V·A = 800 W

Hence, since the power produced is below the power rating of the electric kettle, it will take a longer time to boil a given amount of water than specified by the kettle manufacturer

The energy supplied H = V×I×t

Where:

t = Time in seconds

Therefore, we have;

3 kW = 3000 W;

3000 × t₁ = 880 × t₂

t₂/t₁ =3000/880 = 75/22

Hence the kettle will take 75/22 multiplied by the time it takes when working at rating capacity to boil a given quantity of water

(ii) This is so because the power consumption already factored in the electrical installation as well as the type of appliances utilized in the home allow for several low power rating consumption and few high power rating consumption

Therefore, for both economy and safety the electrical circuit are split to allow for the use of very thick copper or aluminium electric cables in the high power rating electric circuits to which can be plugged high electric power consuming devices such as the water heater and electric cooker

The low electric power consuming devices, such as the electric bulb and fans are connected to the low or "regular" power rating electric circuit outlets

The current required for high power and low power appliances is different and also the fuse rating required for both the appliances different, so two separate circuits are used for high power and low power appliances.

Answer:

The amount of oxygen in the reactants is 4 atoms. In the products, the oxygen is distributed to water (H2O) and O2 gas. Which coefficients would be placed in front of water and oxygen?

2 in front of water and 1 in front of oxygen

Kiley wants to balance the equation H2 + N2 → NH3. Which would be her first step in balancing an equation?

NOT adding the coefficient 3 in front of H2 and the coefficient 2 in front of NH3

Which is the balanced equation for V2O5 + CaS → CaO + V2S5?

V2O5 + 5CaS → 5CaO + V2S5

One half of a balanced chemical equation is shown.

3Mg(OH)2 + 2H3PO4

Which lists the numbers of each atom the other half of the equation would contain?

3 Mg, 2 P, 14 O, 12 H

Substances A and B react in a ratio of A + B → AB. Colin was combining substance A and substance B to form substance AB. He added 10 g of substance A and 45 g of substance B.

How much of substance AB would Colin make?

55g

Lana balanced an equation so that the result was 2C2H3Br + 5O2 → 4CO2 + 2H2O + 2HBr. Which most likely represents the starting equation?

NOT 2C4H3Br + 5O2 → 4CO2 + 2H2O + 2HBr

NOT C4H3Br + O2 → CO2 + H2O + HBr

Which best describes the law of conservation of mass?

The mass of the reactants and products is equal and is not dependent on the physical state of the substances.

Put 2 in front of water and 1 in front of oxygen.

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Given :

A 10.-kilogram object falls freely for a distance of 6.0 meters near Earth's

surface.

To Find :

The total kinetic energy gained by  the object as it falls.

Solution :

Since, only conservative force i.e gravity is applied on the object.

So, its total energy is constant.

Total kinetic energy gained = Total potential energy gained

K.E = mgh ( Here, g is acceleration due to gravity  = 9.8 m/s² )

K.E = 10 × 9.8 × 6 J

K.E = 588 J

Hence, this is the required solution.

The kinetic energy of an object is proportional to the product of its mass and the square of the velocity of the object.

The kinetic energy of the object is 588 J. Option B shows the kinetic energy of the object.

The kinetic energy of an object is defined as the energy that it possesses due to the motion of the object.

Given that the mass m of the object is 10 kg and it falls from the height h of 6 meters near the earth's surface. The object falls vertically, so the gravitational acceleration is applied to it.

The potential energy of the object is given below.

\(PE = mgh\)

\(PE = 10 \times 9.8 \times 6\)

\(PE = 588 \;\rm J\)

The total force applied to the object is due to gravity only. Hence the total energy of the object will be constant. Thus the kinetic energy of the object will be equivalent to the potential energy of the object.

Hence we can conclude that the kinetic energy of the object is 588 J. Option B shows the kinetic energy of the object.

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Answer:

Explanation:

Given:

V = 3.06 m/s   (North)

F₁ = 6.59 N  (South)

F₂ = 8 507.74 N (toward the ground)

F₃ = 8 507.74 N ( up away from the ground)

F₄ = 147.43 (North)

F₅ = 22.82 (South)

__________

R -?

Forces F₂ and F₃ balance each other.

Resultant force:

R = F₄ - F₁ - F₅

R = 147.73 - 6.59 - 22.81 = 118.33 N

To determine the relative frequency of partial eclipses in a specific period, we need additional information regarding the duration and number of eclipses within that period. Without such data, it is not possible to provide an accurate numerical value for the relative frequency.

The relative frequency of partial eclipses can vary depending on several factors, including the location and time span considered. Partial eclipses occur when the Moon partially covers the Sun from an observer's perspective, resulting in a portion of the Sun still visible. The frequency of eclipses, including partial eclipses, follows specific patterns and cycles.

To calculate the relative frequency, you would need a dataset or historical records of eclipses within the desired period. This data would include the number of partial eclipses that occurred during that time. With this information, you can calculate the relative frequency by dividing the number of partial eclipses by the total number of eclipses (including total and annular eclipses) in the given period.

Without specific data, it is not possible to determine the relative frequency of partial eclipses in the mentioned period.

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A) The triathlete's bike is 50.0 m from the shore on the land   B) the component of her distance from the bicycle along the shore is 70.0 m.

In a triathlon, a triathlete starts with swimming, then biking, and ends with running. Here, we have been given that a triathlete on the swimming leg of a triathlon is 120.0 m from the shore (a). The triathlete's bike is 50.0 m from the shore on land (b).

We need to find the component of her distance from the bicycle along the shore. Component of her distance from the bicycle along the shore In the above set, we can see that the triathlete is swimming in a straight line towards the shore, while the bike is on the land. We need to find the component of her distance from the bicycle along the shore. T

his component is represented by the horizontal distance (d) between the point where the swimmer hits the shore and the bike (50.0 m from the shore).Therefore, the component of her distance from the bicycle along the shore is d = 120.0 m - 50.0 m = 70.0 m. Therefore, the component of her distance from the bicycle along the shore is 70.0 m.

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The length of the aluminum flagpole will increase by 0.00881 m as the temperature increases by 15.

The length of an aluminum flagpole may not change with temperature. While thermal expansion can cause materials to change in size when heated or cooled, aluminium, as a metal, is not significantly affected by temperature changes. As such, the length of an aluminium flagpole is unlikely to be significantly affected by changes in temperature.

Calculate the Coefficient of Linear Expansion for Aluminum

The coefficient of Linear Expansion for aluminum is about 0.000023 per degree Celsius

Calculate the change in length

Change in length = (Coefficient of Linear Expansion x Original Length x Change in Temperature)

Change in length = (0.000023 x 39.4 m x 15) = 0.00881 m

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An alpha particle is equivalent to a helium nucleus because an alpha particle is made up of two protons and two neutrons, which are the same components that make up a helium nucleus.

An alpha particle is essentially a helium nucleus with a positive charge. An alpha particle is a type of ionizing particle that is emitted during alpha decay. During this process, a nucleus emits an alpha particle, which is made up of two protons and two neutrons. This results in the atomic number of the element decreasing by two and the mass number decreasing by four.The term "alpha particle" was coined by British physicist Rutherford in 1899. The alpha particle has a charge of +2 and is represented by the symbol α. Alpha particles are generally not very penetrating and are easily stopped by a piece of paper or skin. However, they can be extremely dangerous if inhaled or ingested.

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Answer:

Gravitational Field and Intensity The space around a body where the gravitational force exerted by it can be experienced by any other particle is known as the gravitational field of the body. The strength of this gravitational field is referred to as intensity, and it varies from point to point.

Explanation:

The ways that the motor design would be improved have been written below

Here are two ways to improve the design of the motor and make it spin faster:

Increase the number of turns on the coil: The coil of wire in the motor generates a magnetic field when electric current flows through it. By increasing the number of turns in the coil, the magnetic field will be stronger, which will cause the motor to spin faster. This is because the force that causes the motor to spin (called the torque) is proportional to the strength of the magnetic field.

Increase the voltage of the battery: The battery in the motor provides the electric current that flows through the coil and generates the magnetic field. By increasing the voltage of the battery, more current will flow through the coil, which will increase the strength of the magnetic field and cause the motor to spin faster. This is because the torque is also proportional to the amount of current flowing through the coil.

Overall, by increasing either the number of turns on the coil or the voltage of the battery (or both), the students can increase the strength of the magnetic field and the amount of torque generated by the motor, which will make it spin faster.

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Answer:

Explanation:

24 i think

Answer:

B. 24

Explanation:

There are 24 atoms in one molecule of C6 H12 06. This chemical compound is made up of 6 atoms of carbon, 12 atoms of hydrogen, and 6 atoms of oxygen. We find the number of atoms by adding these numbers up. We than get:

6 + 12 + 6 = 12 + 12 = 24

Therefore, there are 24 atoms in the following chemical formula.

The force F1 is equal and opposite to the downward force thus, F1 is equal to 60 N. The force F2 is inclined to 30 ° from leftward force and it is equal to 38.97 N in magnitude.

Force is an external agent acting on a body to deform it or to change its state of motion or rest. Force is a vector quantity and it is characterised by its magnitude and direction.

If two forces acting on a body from the same directions, then the net force will be the sum of these two forces. If they are acting from opposite directions, they will cancel each other in magnitude.

The force F1 is equal and opposite to the force acting downward. Thus its magnitude is 60 N. The force F2 is inclined to 30 ° from horizontal direction.

F2 = 45 cos 30 = 38.9 N.

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Answer:

Electric force is a phenomenon which is experienced by a point charge due to its presence in an electric field. Electric force fields indicate the strength of the electric force that will be experienced, and also the direction of the force. The strength is shown by the closeness of the electric field lines and the direction is shown by the direction of the lines. Therefore, force fields are necessary in describing electric force.

Explanation:

Electric force is a phenomenon which is experienced by a point charge due to its presence in an electric field. Electric force fields indicate the strength of the electric force that will be experienced, and also the direction of the force. The strength is shown by the closeness of the electric field lines and the direction is shown by the direction of the lines. Therefore, force fields are necessary in describing electric force.

Net work done 2w is needed to accelerate an object of mass 2m from rest to velocity v.

The force that is required to move a thing a specific distance is referred to as the work done. Essentially, it is a measurement of the amount of energy that is transmitted to or from an item so that it can be moved. The result of the displace and or the component of such force applied of the particle in the displacement direction is the definition of the work performed by a force. Work is accomplished when we remove a block with a few force; the body moves more quickly. Work completed is noted as.

as we know that work done = 1/2 mv^2

as we double the m then work done will aslo become double because work done is directly proportional to the mass .

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A quota is a trade restriction imposed by the government that limits the quantity of goods or the amount of money that a country may spend on them at one time for import or export.

Thus this is the meaning of quota.

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The kinetic energy of the vehicles would double, and the mass would also double, the change in kinetic energy would be twice as great as it was before.

Explanation:-

The change in kinetic energy would be 2 times as great and the final velocities would each have the same magnitude as before if the mass of both vehicles were doubled.

The law of conservation of energy states that the change in kinetic energy of an object is equal to the work done on it. Kinetic energy is directly proportional to mass and the square of the velocity;

thus, the final velocity and the change in kinetic energy can be determined as follows:

KE = (1/2)mv²,

where KE is the kinetic energy, m is the mass, and v is the velocity.

When the mass of both vehicles is doubled, it is expected that their final velocities would each have the same magnitude as before.

According to Newton's Second Law, the acceleration is inversely proportional to the mass when the force remains constant.

F = ma,

where F is the force, m is the mass, and a is the acceleration.

The magnitude of the force acting on each vehicle would be constant,

so the acceleration would be inversely proportional to the mass.

As a result, the final velocities would each have the same magnitude as before.

Mathematically,

v = √(2KE/m)

Since the kinetic energy of the vehicles would double, and the mass would also double, the change in kinetic energy would be twice as great as it was before.

Therefore, the change in kinetic energy would be 2 times as great.

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Phytophotodermatitis happens when certain plant chemicals cause the skin to become inflamed following exposure to sunlight.

Answer:

Phytophotodermatitis is induced by the action of long wavelength ultraviolet radiation (UVA) on a plant chemical called furocoumarins (psoralens) on the skin surface. Contact with the plant, fruit or vegetable may have been brief and unnoticed.

Explanation:

The electromotive force would cause 200 mA of current to flow through a 500ohm resistor is (D) 100 V.

The electromotive force that would cause 200 mA of current to flow through a 500 ohm resistor is 100 V. This can be determined using Ohm's law.Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance between them. Mathematically, Ohm's law is represented by the equation V = IR, where V is voltage, I is current, and R is resistance.To find the electromotive force, we can rearrange Ohm's law to be E = IR, where E is electromotive force. Substituting the given values, we have:E = (0.2 A)(500 Ω)E = 100 V .

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Explanation:

Pressure = Height * Density * acc. due to gravity

P = 2 * 680 * 9.8 = 13, 328 Pa

Answer:

13328pa

Explanation:

p = hgd

h = height = 200cm = 2m

g = 9.8m/s²

d = density = 680kg/m³

p = pressure

p = 2 x 9.8 x 680 = 13328pa