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A delivery truck from the postal service is traveling with a constant velocity up and interstate entrance ramp with a 8.5 degree slope.a 60-kg box sits on the floor of the truck and as a result of static friction, it does not slide.
1. What is the work done on the box by the force of gravity? _______ J
2. What is the work done on the box by the force of friction? ________ J
3. What is the work done on the box by the normal force? ________ J
4. Through an interval in which the truck travels 365 m up the ramp entrance, what is the net work done on the box? _________J
Assume that Young's experiment is performed by light of wavelength 523 nm. The slits are 1.06 mm apart, and the viewing screen is 5.34 m from the slits. How far apart are the bright fringes in meters?
q1. a forceof 5.0 n moves a 6.0 kg object along a rough floor at a constant speed of 2.5 ms.a how much work is done in
Three men are riding on a train of proper length L that is moving at speed v = 3/5 c with respect to the ground, Calculate the time difference between the two emissions, in both frames
A tank is 2m above the connection to the water controls. The water then travels up a vertical pipe to the shower head 3.5m above the water controls. Determine the water pressure at the shower controls
Two pieces of steel wire with the same area of transversalsection have lengths "L" and "2L". what is the frequency of the second harmonic of the larger wire
An elevator can lift a 107 N aircraft a distance of 26 meters in 11 s. What is the power output of the elevator
A 37 g bullet, with ahorizontal velocity of 494 m/s, stops13 cm within a solid wall. What is the change in its mechanical energy
Discuss the most significant sources of error in the experimental procedures. if the temperature of ice added to the calorimeter in the heart of fusion experiment were less than 0 degrees Celsius how would this affect the results? Why must you use sm..
A hockey puck of mass .5 kilogram travelling at 10 m/s slows to 2.0 m/s over a distance of 80 meter. Determine the frictional force acting on the puck
The seed has a mass of 250 mg., a functional lift-to-drag ratio of 4.0, a lift coefficient under the same conditions of 0.3, and a wing area of 5000 mm2. How long will it take to hit the ground
Suppose 4.00 g of hydrogen is separatedinto electrons and protons. Suppose also the protons are placed atthe earth's North Pole and the electrons are placed at the SouthPole. What is the resulting compressional force on the Earth?
without moving you will suddenly see the penny magically appear. if you look into the cup at an angle of 70.0 degrees
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