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VladimirAG [237]
3 years ago
10

How much time does it take a person to walk 8

Physics
1 answer:
Alex3 years ago
8 0

Answer:

2 hours

Explanation:

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Direction of current in a solenoid depends on the direction of magnetic field
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Explanation:

Its direction depends on the direction of the current. ... When the current flows through the solenoid in the clockwise direction, then the magnetic lines of force inside or center of the coil will be along the axis inwards according to Fleming's right hand rule.

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3 years ago
A spherical bowling ball with mass m = 4.1 kg and radius R = 0.117 m is thrown down the lane with an initial speed of v = 8.9 m/
weqwewe [10]

Answer:Given mass = 4.1kg

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Velocity V = 8.4m/s

Coefficient of friction = 0.25

Explanation: Below is an attached solution to the problem stated above.

1. The angular acceleration is equal to 524rad/s^2

2. The linear acceleration is equal to 2.45m/s^2

3.the time it takes the ball to begin rolling = 0.98s

4. The distance the ball slides before it begins to roll = 7.05m

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4 years ago
an airplane is traveling 735 KM/H and direction 41.5 west of north find the component of the velocity vector in the notherly and
damaskus [11]
The. correct answer is 53.1
4 0
4 years ago
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Mathematically, explain how a car (A) with mass of 500 kg and velocity of 2 m/s has the same kinetic energy as a car (B) with ma
scoray [572]

Answer:

<em>Both kinetic energies are equal</em>

Explanation:

<u>Kinetic Energy </u>

Is the type of energy of an object due to its state of motion. It's proportional to the mass and the square of the speed.

The equation for the kinetic energy is:

\displaystyle K=\frac{1}{2}mv^2

Where:

m = mass of the object

v = speed of the object

The kinetic energy is expressed in Joules (J)

There are two cars:

Car (A) with mass ma=500 kg and speed va= 2 m/s

Car (B) with mass mb=20,000 gr and speed vb= 10 m/s

Calculate the kinetic energy of both cars:

\displaystyle K_a=\frac{1}{2}m_av_a^2

\displaystyle K_a=\frac{1}{2}500*2^2

\displaystyle K_a=250*4=1,000 J

To calculate the Kb, the mass must be expressed in kg:

mb=20,000/1,000 =20 Kg

\displaystyle K_b=\frac{1}{2}m_bv_b^2

\displaystyle K_b=\frac{1}{2}20*10^2

\displaystyle K_b=10*100=1,000 J

Both kinetic energies are equal

8 0
3 years ago
Why does the same side of the moon always face earth
yuradex [85]
<span>A tidally locked body in synchronous rotation (the moon) takes just as long to rotate around its own axis as it </span>does<span> to revolve around its partner (the earth). In other words, the moon spins on its axis at the same rate it orbits the earth.</span>
4 0
3 years ago
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