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When 4425 J of heat are added to a 0.16-m-long silver bar, its length increases by 4.71 multiply.gif 10-3 m. What is the mass of the bar?
A wheel with a radius of 0.25 m rolls without slipping on a level road at a constant speed of 1.1 m/s for 2.0 min
You and the friend each drive 47.0 km. You travel at 87.0 km/h; your friend travels at 98 km/h. How long will your friend wait for you at the end of trip.
A 3 liter aluminium cylinder at 5°C is filled to the brim with gasoline at the same temperature. If the aluminium and gasoline are warmed to 62°C, how much gasoline spills out.
A coil is placed in a changing magnetic field and an emf is induced. What happens to induced emf if the rate of change of magnetic field quadruples.
A thief was trying to pull a 20 kg coffer (a coffer is a box usually used to hold valuables) along an essentially frictionless horizontal surface. What was the work done on the coffer by the rope
In an interstellar gas cloud at 48.2 K, the pressure is 1.16 x 10-8 Pa. what is their mean free path
A 12.0 g bullet is fired horizontally into a 106 g wooden block that is at first at rest on a frictionless horizontal surface and connected to a spring having spring constant 143 N/m.
The electric field on the axis of a uniformly charged ring has magnitude 400kN/C at a point 5.6cm from the ring center, Find the rings radius and charge
An airplane accelerates down a runway at 3.20 m/s2, finally lifts off the ground Determine the distance traveled before takeoff?
A person with a mass of 71.6 kg and a volume of 0.089 m3 floats quietly in water. (a) What is the volume of the person that is above the water? If an upward force F is applied to the person, the volume of the person above the water increases by 0...
Select ALL the valid statements, i.e., B, AC, BCD. If an equation is dimensionally A) correct, the equation may be correct. B) incorrect, the equation may be correct. C) correct, the equation may be wrong. D) incorrect, the equation must be wrong...
A rifle is aimed horizontally at a target 58 away. The bullet hits the target 2.5 below the aim point. What was the bullet's flight time? What was the bullet's speed as it left the barrel?
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