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At 25oC, an aluminum ring has an inner diameter of 4 cm and a brass rod has a diameter of 4.01 cm. If the temperature coefficient of expansion for brass is 1.9 × 10-5 (C)-1 and the temperature coefficient of expansion for aluminum is 2.4 × 10-5 (C)-1. To what temperature must both be heated so that the ring just slips over the rod? Answer in units of C.
A 2110-kg test rocket is launched vertically from the launch pad. Its fuel (of negligible mass) provides a thrust force so that its vertical velocity as a function of time is given by v(t)=At+Bt^2, What was the initial thrust due to the fuel
The second ball, after rising, falls and also strikes the ground below. If air resistance can be neglected and if your downward and upward initial speeds are the same, explain how will the speeds of the balls compare upon striking the ground?
a closely wound solenoid of 2000 turns and area of cross-section 1.6 times 10-4 m2 carrying a current of 4.0 a is
Using a vernier caliper of least count 0.01 cm, the length of a cylinder is measured to be 3.76 cm, Calculate the probable percent error in the length
Determine the greatest vertical displacement of the pendulum
An airplane has an effective wing surface area of 15 m2 that is generating the lift force. What is the weight of the plane
Two identical mandolin strings under 200 N of tension are sounding tones with frequencies of 523 Hz. How many beats per second are heard
A proton is moving toward a wire that carries current in the direction shown. What is the direction of the force on the proton
A black wood stove has a surface area of 2.20 m2 and a surface temperature of 185° C. What is the net rate at which heat is radiated into the room
Two golf balls are glued together and rotated about an axis through the point where they are joined. What is the moment of inertia of the pair of golf balls around the chosen axis
A 232 kg cart runs into the rear end of a 102 kg cart that is stationary. What is the speed of the moving cart before the collision
A 4.7 e2 kg hot-air balloon takes off from rest at surface of the earth. The nonconservative wind and lift forces take the balloon up, doing +9.70 multiplied by 104J of work on the balloon in the process. At what height above the surface of the ea..
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