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A 55 kg person riding a bike puts all her weight on each pedal when climbing a hill. The pedals rotate in a circle of radius 17 cm.
(a) What is the maximum torque she exerts?
(b) How could she exert more torque?
A convex spherical mirror, whose focal length has a magnitude of 15.2 cm, is to form an image 10.4 cm behind the mirror. where should the object be placed
How to compute the average force
If the accelerating plates are 1.00cm apart, and have a potential difference of 2.55×104V , what is the magnitude of the uniform electric field between them
question1a stable nucleus is composed of z protons and n neutrons. is the mass of nucleus identical to the sum of the
Consider an object on an incline where friction is present. The angle between the incline and the horizontal is ?, Find an expression for the acceleration of this object. Treat down the incline as the positive direction
A solid, rectangular iron bar measures .40cm by 1.0cm by 30cm. Find the resistance between each of the three pairs of opposing faces, assume the faces in question are quipotentials.
A 1.0 kg ball drops vertically onto a floor, hitting with a speed of 28 m/s. It rebounds with an initial speed of 12 m/s. What impulse acts on the ball during the contact
Consider a square loop of wire (sides of 0.25 m) with a resistor included. A bar magnet with the north end up front is approaching the closed loop and thus induces a current. what is the rate of energy dissipation across the resistor
a bottle has a mass of 35 g when empty and98.45 g when filled with water. what is the specific gravity of the other fluid
The crankshaft in a race car goes from rest to 3600rpm in 3.2s. How many revolutions does it make while reaching 3600rpm
At launch, the space shuttle's engines offer a thrust of 29 x 10^6N, and it accelerates upward at 1.75 m/s^2. What is the shuttle's mass.
A particle undergoes two displacements. The first has a magnitude of 119 cm and makes an angle of 106 degrees with the positive x axis. The resultant displacement has a magnitude of 111 cm and is directed at an angle of 37.7 degrees to the positive x..
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