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What is the rotational inertiaof the merry go around starts from rest and accelerates at 0.010 rad/ s^2 for 14 s if a constant tangential force of magnitude 200 N applied 1m from the axis of rotation was required to accelerate it what was the angular speed at the end o the spin up time?
A 120 g ball moving at 0.45m/s in the +x-direction is subject to a 0.15 N force in the -y-direction for 3.0 s. Find the ball's final speed
A model-train transformer plugs into 120-V ac and draws 0.41A while supplying 7.8A to the train. Is the transformer step-up or step-down
A whale swims due east for a distance of 1.5 km, turns around and goes due west for 5.7 km, and finally turns around again and heads 4.5 km due east. (a) What is the total distance traveled by the whale? km (b) What are the magnitude and direction..
A 52 {rm kg} ice skater spins about a vertical axis through her body with her arms horizontally outstretched, making 2.50 turns each second. The distance from one hand to the other is 1.5 {rm m}. Biometric measurements indicate that each hand typi..
A 10 kg hammer strikes a nail at a velocity of 8.3 m/s and comes to rest in a time interval of 8.0 ms. What is the impulse given to the nail
Two masses m1 and m2 are connected by an ideal spring and placedon a horizontal frictionless surface as shown. they are pulledapart so that the spring is stretched an amount x0 and then theyare released simultaneously. the constant for the spring ..
you are trying to lift a stack of books off the table. the stack of books has a mass of 15 kg. what minimum upward force must you exert on the books
a 30000 litre water tank is 2.6m high and 4.33 m in diameter. it has two outlet pipes one at the base of the tank and
An automobile tire is inflated with air originally at 10.0°C and normal atmospheric pressure. During the process, What is the tire pressure in pascals
a 10-turn square coil 0.50 m on a side lies in the xy-plane. a uniform magnetic field with magnitude 1.0 t in the
The rms speed of the molecules in 1.1g of hydrogen gas is 1800 m/s. What is the thermal energy of the gas
Mercury has a mass MP = 3.18 x 1023 kg, an orbital period T = 88.0 days, Find the total energy (potential and kinetic) of Mercury in its orbit about the Sun
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