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Q. A wheel 65.0 cm in diameter accelerates uniformly from 215 rpm to 390 rpm in 6.0 s. How far will a point on the edge of the wheel have traveled in this time?
Q. A spring with a spring constant of 2.2E2 N/m is attached to a 1.8 kg mass and then set in motion.
(a) What is the period of the mass-spring system?
(b) What is the frequency of the vibration?
To fill a child's inflatable wading pool, you use a garden hose with a diameter of 2.90 cm. Water flows from this hose with a speed of 1.50 m/s. How long will it take to fill the pool to a depth of 25.0 cm if the pool is circular and has the diame..
An insulated Thermos contains 131 cm3 of hot coffee at 82 °C. You put a 12g ice cube at its melting point to cool the coffee. By how many degrees has the coffee cooled once the ice has melted and equilibrium is reached? Treat the coffee as though ..
Compute the mass of a ball and speed of a puck after collision.
Calculate charges, current, potential difference.
Calculate the vertical component of its velocity by the time it hits the ground
Find out that the value of the gravitational field strength
A 2.0 kg ball swings in a vertical circle on the end of an 80cm long string. Calculate the speed, magnitude and direction of acceleration
A car makes a round trip for 100m in 10 seconds. What is the average velocity?
Calculate the rates of solar heating
A 1 m long pedulum with a 2kg mass is pulled back 0.1m and after that released, so that it swings back and forth. How did they solve T= 2.007 seconds.
Consider a too-small space station that consists of a 2.7m radius rotating sphere. A man standing inside is 1.9m tall and his feet are at 1g. What is the acceleration of his head.
A 65 kg hiker has fallen down a hole. One rescuer attaches a rope to the injured hiker and then a second rescuer pulls the injured hiker straight up out of the hole at a steady rate. How much force would the second rescuer need to exert on the rope t..
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