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A bicycle has wheels with a diameter (DIAMETER, not radius) of 0.620 m. It accelerates uniformly and the rate of rotation of its wheels increases from 175 rpm to 270 rpm in a time of 26.5 s. Find the linear acceleration of the bicycle.
A 30kg child slides down a playground slide at a constant speed. find the magnitude of the kinetic friction force acting on the child
You buy a plastic dart gun, and being a clever physics student you decide to do a quick calculation to find its maximum horizontal range. What is the maximum horizontal range of your gun
Suppose that you are traveling on board a spacecraft that is moving with respect to the earth at a speed of 0.946c. calculate your breathing rate
A 5.00 x 10^4 kg space probe is travelling at a speed of 14000 m/s through deep space. Retrorockets are fired along the line of motion to decrease the probe's speed. The retrorockets generate a force of 4.00 x 10^5 N over a distance of 2600 km. What ..
A 3.11kg stone is tied to a thin, light wire wrapped around the outer edge of the uniform8.23kg cylindrical pulley, What is the rotational inertia of the pulley
Calculate the electric field(magnitude and direction) at the center of a square 52.5 on a side if one corner is occupied by a - 38.8 charge
The rotor in a certain electric motor is a flat, rectangular coil with 88 turns of wire and dimensions 2.33 cm by 4.20 cm, What is the average power of the motor
Earth has a net charge that produces an electric field of approximately 150 N/C downward at its surface. (a) What is the magnitude and sign of the excess charge.
A proton and an alpha particle (charge = 2e, mass = 6.64 10-27 kg) are initially at rest, separated by 2.30 10-15 m. What are both of their speeds at infinity
A 85.0 kg fullback is running at 3.86 m/s to the east and is stopped in 0.800 s by a head-on tackle by a tackler running due west. Calculate the impulse exerted on the tackler
A sphere of radius 3.09 cm and a spherical shell of radius 9.22 cm are rolling without slipping along the same floor. what should the ratio of the sphere\'s angular speed to the spherical shell\'s angular speed be
The flux in a transformer changes at a rate of 0.4 Wb/s. The primary coil has 40 turns and the secondary coil has 500 turns
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