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A 8500-kg boxcar traveling at 13m/s strikes a second boxcar at rest. The two stick together and move off with a speed of 4.5m/s. what is the mass of the second car?
An ideal gas has its pressure cut in half slowly, while being kept in a container with rigid walls. How much work was done during this process
Calculate the force required to move an object.
Two positive point charges, each of which has a charge of 4.3E-9 are located at y=+.10m and y+-.10m, What is the direction of this force
A car of mass M = 1100 kg traveling at 45 km/hour enters a banked turn covered with ice. The road is banked at an angle theta, and there is no friction between the road and the car's tires.
A 70.0kg archer, standing on frictionless ice, shoots a 100g arrow at a speed of 50m/s. What is the recoil speed of the archer
A person of mass 75kg hauls himself off the floor up a vertical rope with an acceleration of 0.68m/s. calculate the tension in the rope
A certain car battery with a 12.0 V emf has an initial charge of 178 A•h. assume that the potential across the terminals stays constant until the battery is totally discharged, for how long in hours can it deliver energy at the rate of 115 W.
Two speakers, one directly behind the other, are each generating a 275 Hz sound wave. What is the smallest separation distance between the speakers that would produce destructive interference at a listener standing in front of them? Assume that th..
Air in a balloon does 50 J of work while absorbing 70 J of heat. What is its change in internal energy
A 6.00V lantern battery is connected to a 11.1OMEGA lightbulb, and the resulting current in the circuit is 0.388A. What is the internal resistance of the battery
The power required by an ice maker is 225 W and is the rate at which it does work. determine the maximum amount of ice the unit can produce in one day
The 3.3 kg piece of wood slides on the surface. The curved sides are perfectly smooth, but the rough horizontal bottom is 35 m long and has the kinetic friction coefficient of 0.24 with the wood. The piece of wood starts from rest 6.0 m above the rou..
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