instantaneous speeda) total distance covered divided by the total time required average speedb) rate of change of velocity with time accelerationc) rate of change of distance with time speedd) speed at a particular instant of time

Answer:

Explanation:

Silver, Bronze, Gold

Answer:

Im guessing that the correct answer would be C.) Electricity would not be generated.

Explanation:

Apologies if im wrong.

Electricity would not be generated if the generator in a wind turbine breaks and is denoted as option C.

This is a device which converts the kinetic energy from the wind into electrical energy.

The generator provides the kinetic energy which when broken, electricity generation is hindered.

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The speed of the ball at the bottom of the ramp is obtained by taking the square root of 2 times gravity times height of the ramp (v = √2gh).

The speed of the ball at the bottom of the ramp is calculated by applying the principle of conservation of energy as shown below.

According to principle of conservation of energy;

kinetic energy of the ball at bottom of the ramp = potential energy of the ball at the maximum height of the ramp

K.E(bottom) = P.E(top)

¹/₂mv² = mgh

v² = 2gh

v = √2gh

where;

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Answer:

40 m

Explanation:

The area under v-t graph gives the distance travelled by the particle.

Distance = area of ΔOBC + area of ΔCDE + area of ΔEFG

\(=\dfrac{1}{2}\times 4\times 10+\dfrac{1}{2}\times 2\times 10+\dfrac{1}{2}\times 4\times 5\\\\=40\ m\)

So, the distance travelled by the particle in the time interval t = 0 and t= 10 s is equal to 40 m.

Answer:

I think it's a. Object velocity

Explanation:

.

Answer:

Object mass

Explanation:

I had answered and thats what it is

The Q value of the reaction ²₁H + ²₁H → ³₂He + ¹₀n is approximately 3.27 MeV. Understanding the Q value of a reaction provides valuable information about the energy changes and stability of nuclear processes.

The Q value of a nuclear reaction represents the energy released or absorbed during the reaction. It can be calculated using the equation:

Q = (m_initial - m_final) * c^2

where m_initial is the total initial mass of the reactants, m_final is the total final mass of the products, and c is the speed of light.

In the given reaction, the reactants are two deuterium nuclei (²₁H) and the products are helium-3 (³₂He) and a neutron (¹₀n).

The atomic mass of deuterium (²₁H) is approximately 2.014 amu, helium-3 (³₂He) is approximately 3.016 amu, and a neutron (¹₀n) is approximately 1.008 amu.

Converting the atomic masses to kilograms, we get:

m_initial = 2 * 2.014 u * (1.661 x 10^(-27) kg/u)

= 6.68 x 10^(-27) kg

m_final = 3.016 u * (1.661 x 10^(-27) kg/u) + 1.008 u * (1.661 x 10^(-27) kg/u)

= 5.01 x 10^(-27) kg

Substituting the values into the Q equation and using the speed of light (c ≈ 3.00 x 10^8 m/s), we find:

Q = (6.68 x 10^(-27) kg - 5.01 x 10^(-27) kg) * (3.00 x 10^8 m/s)^2

≈ 3.27 MeV

Therefore, the Q value of the reaction ²₁H + ²₁H → ³₂He + ¹₀n is approximately 3.27 MeV. Understanding the Q value of a reaction provides valuable information about the energy changes and stability of nuclear processes.

By calculating the Q value of the reaction ²₁H + ²₁H → ³₂He + ¹₀n using the equation Q = (m_initial - m_final) * c^2, we determined that the Q value is approximately 3.27 MeV. This Q value represents the energy released during the nuclear reaction. The reaction involves the collision of two deuterium nuclei, resulting in the formation of helium-3 and a neutron. Understanding the Q value of a reaction provides valuable information about the energy changes and stability of nuclear processes.

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Answer:

a

Explanation:

mark me as brainlist ez

Answer:

The answer is 0 J

Explanation:

Mass=3

Acceleration= 9.8

Height=0

The eqation is \(3(9.8)(0)\) or \(3*9.8*0\)

and if you do the math it adds up to 0 J

The potential energy of your 3 kg puppy that is sitting in the grass in your backyard would be 0 Joules .

Mechanical energy is the combination of all the energy in motion represented by total kinetic energy and the total stored energy in the system which is represented by total potential energy .

ME = PE + KE

As for the given problem, we have to find out what the potential energy of your 3 kg puppy that is sitting in the grass in your backyard,

The potential energy of the puppy = m × g × h

                                                  = 3 × 9.8 × 0

                                                  = 0

Thus , the potential energy of your 3 kg puppy that is sitting in the grass in your backyard would be 0 Joules .

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The electric field strength midway between the plates is 100 V/m.

The electric field strength experienced by the charge is the force per unit charge flowing in the field.

The electric field strength midway between the plates is calculated as follows;

E = V/d

where;

Midway between the plates = 12 cm = 0.12 m

E = 12/0.12

E = 100 V/m

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Answer:

Explanation:

Energy is what makes change happen and can be transferred form one object to another. ... Power is the rate at which energy is transferred. It is not energy but is often confused with energy. The watt is the most commonly used unit of measure for power.

Answer:

I think the the answer is creating and layout and template style     ( C )

Explanation:

I did it before and i was checking my notes and i wrote that down , Hope this Helps :)

The temperature of force the body after 60 minutes is 71 degrees. Let the temperature of the body after 60 minutes be T.

Since the temperature of the surrounding medium is 25 degrees Celsius and the temperature of the body cools from 95 to 85 in 30 minutes, we can find k using the following formula;dT/dt = k(T - 25)Here, dT/dt is the rate at which the body's temperature changes. It's equal to (85 - 95)/30 = -1/3Since the temperature difference is decreasing with time (body cools down), the negative sign indicates this change.

We have;dT/dt = k(T - 25)-1/3 = k(95 - 25)k = -1/70Substituting the value of k in the differential equation above, we get;dT/dt = (-1/70) (T - 25)Solving the differential equation gives the following equation:T = 25 + 60e^(-t/70)Substituting the value of t = 60 minutes (1 hour) into the equation above gives;T = 25 + 60e^(-1)T = 71 degrees Celsius (rounded to the nearest degree).

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This information is valuable because Managers can use this customer data each month to figure out whether a larger or smaller percentage of visitors are buying clothes there.

It is the relative value that represents the hundredth part of any number for example 2% of any number represents, 2 multiplied by the 1/100th of that number.

A clothes business contains sensors that count the number of customers entering the store and cash registers that count the number of transactions made daily.

Thus, data is useful because Managers may use it to determine if a greater or lesser proportion of customers are purchasing clothing each month. Therefore the correct answer is option A.

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Answer: It is b

Explanation:

The lack of protein in the body will result in a lack of energy in the body. Hence, option B is correct.

Proteins are created from a variety of amino acid building blocks. Our body needs dietary protein to supply amino acids for the growth and upkeep of our cells and tissues. As we become older, our dietary needs for protein change.

Proteins are made up of many different amino acids that are joined together. Both plants and animals have a lot of these 20 different amino acid building blocks. Each protein has a unique ratio and arrangement of the 300 or more amino acids that make up a typical protein.

Our body is made up of thousands of different proteins, each of which has a specific function. They contribute to the structural components of our cells and tissues, along with the countless enzymes, hormones, and active proteins produced by immune cells.

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Sulfur dioxide is a colorless gas with a pungent odor. It is a liquid when under pressure, and it dissolves in water very easily. Sulfur dioxide in the air comes mainly from activities such as the burning of coal and oil at power plants or from copper smelting

A thermal power station that burns coal to produce electricity is known as a coal-fired power station or coal power plant. Around 8,500 coal-fired power plants with a combined capacity of over 2,000 gigawatts are present worldwide.

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(a) To find the energy stored in a magnetic field inside a solenoid, we can use the formula: E = (1/2) * L * I^2, where L is the inductance of the solenoid, and I is the current passing through it. Since the solenoid is air-filled, we can approximate its inductance using the formula: L = (mu * N^2 * A^2) / l

where mu is the permeability of free space, N is the number of turns, A is the cross-sectional area, and l is the length of the solenoid. Substituting the given values, we get L = 0.019 H. Assuming the current passing through the solenoid is negligible, we can calculate the energy stored as: E = (1/2) * L * I^2 = (1/2) * 0.019 * 0^2 = 0 J.

Therefore, the energy stored in the magnetic field is approximately 29 J.

(b) the total energy stored in the earth's magnetic field in the first 10 km above its surface, we can use the formula: E = (1/2) * V * B^2 * mu, where V is the volume, B is the magnetic field, and mu is the permeability of free space. We can approximate the volume of the region as a cylinder with a radius of 6400 km (the radius of the earth) and a height of 10 km.

Substituting the given values, we get E = (1/2) * pi * (6400 + 10)^2 * 10 * (0.5 x 10^-4)^2 * 4pi10^-7 = 5.1 x 10^15 J. Therefore, the total energy stored in the earth's magnetic field in the first 10 km above its surface is approximately 5.1 x 10^15 J.

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Answer:

D. 196 J

Explanation:

PE=mgh=10×9.8×2=196J

Answer:

Answer: B. 196 J

• potential energy is calculated from the formula:

\({ \tt{p.e = mgh}}\)

• m = 10 kg

• g = 9.81 m/s²

• h = 2m

→ Substitute:

\({ \tt{p.e = (10) \times (2) \times (9.81)}} \\ \\ → \: { \boxed{ \tt{potential \: energy = 196.2 \: \: joules}}}\)

Answer:

significa lo que resistes al hacer ejercicio cuánto duras haciendolo

Answer:

true

Explanation:

Answer:

true

Explanation:

The centripetal force exerted on the car, given it has a mass of 1500 Kg and is moving with a velocity of 40 m/s is 200000 N

Centripetal force is defined according to the following equation:

F = mv²/r

With the above formula, we can obtain the centripetal force as follow:

The centripetal force exerted on the car can be obatined as illustrated below:

F = mv²/r

F = (1500 × 40²) / 12

F = (1500 × 1600) / 12

F = 2400000 / 12

F = 200000 N

Thus, the centripetal force exerted is 200000 N

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Answer:

To calculate the speed of the animal, we need to divide the distance it travels by the time it takes to travel that distance. In this case, the distance is 160 meters and the time is 40 seconds, so the speed is:

speed = distance / time = 160m / 40s = 4 m/s

This means that the animal was moving at a speed of 4 meters per second.

Explanation:

The radiant power absorbed by the blackened vane is 3.6 x 10^(-5) W. The radiant power incident on each vane can be calculated by multiplying the intensity by the area of the vane. The area of each vane is 0.01 m * 0.01 m = 0.0001 m^2. Therefore, the radiant power incident on each vane is 300 W/m^2 * 0.0001 m^2 = 0.03 W.

Since the silvered vane reflects all incident radiant energy, it does not absorb any power. Therefore, the total radiant power absorbed by the blackened vane is equal to the total incident power minus the reflected power. So, the radiant power absorbed by the blackened vane is 0.03 W - 0 W = 0.03 W.

However, in the question, the distance of the center of each vane from the axis is given as 6 cm, which means that the distance from the center of each vane to the axis is 0.06 m. The radiant power absorbed by the blackened vane is proportional to the distance squared, so we need to adjust the value. Since the distance of the center of each vane is six times greater than the distance given in the question, the radiant power absorbed by the blackened vane will be 0.03 W / (6^2) = 3.6 x 10^(-5) W.

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Given:

The resistances are

The potential of the battery is

To find:

The current through the 4.0-ohm resistor

Explanation:

The equivalent resistance of the circuit is,

The current in the circuit is,

For the series combination, the same current flows through the 4.0-ohm resistance and the parallel combination of 5.0 and 9.0-ohm resistances.

Hence, the current through 4.0 ohm is 0.83 A.

Resistance(R) of a device is given by

Final answer is :- 2.67 ohm

The expected magnetic field reading when the current through the coil is -0.2 A would be -0.06 T.

To determine the expected magnetic field when the current through the coil is -0.2 A, we can use Ampere's law, which states that the magnetic field inside a coil is directly proportional to the current passing through it.

Given that the magnetic field (B) inside the coil is 0.03 T when the current (I) through the coil is 0.1 A, we can establish a proportionality relationship:

B1 / I1 = B2 / I2

where B1 is the initial magnetic field, I1 is the initial current, B2 is the expected magnetic field, and I2 is the expected current.

Substituting the known values into the equation:

0.03 T / 0.1 A = B2 / (-0.2 A)

Now we can solve for B2:

B2 = (0.03 T / 0.1 A) * (-0.2 A)

Simplifying the expression:

B2 = -0.06 T

Therefore, the expected magnetic field reading when the current through the coil is -0.2 A would be -0.06 T.

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Answer:

The woman displaces a volume of air equivalent to her own volume; VV; V=\dfrac{m}{\rho_{\text{woman}}}=\dfrac{60}{980}=0.0612\mathrm{\ m^3}V= ρ woman m = 98060 =0.0612 m 3

Explanation:

1. The terminal voltage of the generator is 100 V.

2. The heat dissipated in the armature is 200 W.

3. The braking torque exerted by the armature is 0.1904 N·m.

Given data includes;

N = 1000 r/min

E = 120 VΩ

     = 2 Ω

I = 10 A

To find:

1. Terminal voltage

2. Heat dissipated in the armature

3. Braking torque exerted by the armature

1. Terminal voltage

To find the terminal voltage we use the following formula;

V = E - I × R

Where,

R = armature resistance

V = E - IR

R= 2Ω

I = 10 A

V = E - IR

V = 120 - (10 × 2)

  = 100 V

Therefore, the terminal voltage is 100 V.

2. Heat dissipated in the armature

To find the heat dissipated in the armature we use the following formula;

P = I² × R

Where, R = armature resistance

I = 10 A

P = I² × R

P = 10² × 2

 = 200 W

Therefore, the heat dissipated in the armature is 200 W.

3. Braking torque exerted by the armature

To find the braking torque exerted by the armature we use the following formula;

T = (P / ω)

Where, P = power output of the motor

ω = rad/sec

ω = 2π × N / 60

Where, N = 1000 r/min

T = (P / ω)

T = (200 / 2π × 1000 / 60)

T = 0.1904 N·m

Therefore, the braking torque exerted by the armature is 0.1904 N·m.

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