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A railroad car of mass 2.45 x 104 kilogram is moving with a speed of 3.97 m/s. It collides and couples with three other coupled railroad cars, each of the identical mass as the single car and moving in the same direction with an initial speed of 1.99 m/s.
Determine how much energy is transformed into internal energy in the collision?
When playing a game, a 45 kg boy jumps vertically upward from the top of a wardrobe with a speed of 5.5 m/s. How fast is he going as he lands on the mattress, 3 m below
A 60 kg explorer lands on Planet X, where the gravitational acceleration is 10.5 m/s2. The radius of the planet is 7.91 x 107 m. What is her weight on this planet in Newtons
question 1. plot on a single graph the lennard-jones potential uu using the parameter sets i ai2 ei2 ii g23 623 and iii
A bar of gold measures 0.16 m cross 0.056 m cross 0.049 m. How many gallons of water have the same mass as this bar
illustrate what force should the second crewman pull so that the net force of the two crewman is in the forward direction?
4.60g of nitrogen gas at 22.0?C and an initial pressure of 3.30atm undergo an isobaric expansion until the volume has tripled. A) How much heat energy is transferred to the gas to cause this expansion
A string oscillates according to the equation below. y = (0.30 cm) sin[(?/3 cm-1)x] cos[(20? s-1)t] , What is the distance between nodes
Throughout liftoff, a hot-air balloon accelerates upward at a rate of 3m/s^2. The balloonist drops an object over the side of the gondola when the speed is 13m/s.
Determine the kinetic energy of the electron in joules
A 7,800-kg truck runs into the rear of a 1,000-kg car that was stationary. The truck and car are locked together after the collision and move with speed 2 m/s
Your university radio station has a 5.5 kW radio transmitter that broadcasts uniformly in all directions; listeners within 15 km have reliable reception. What should be the new power
An aircraft?starts at rest and is accelerated?at 13.2?m/s2 for 8.5 seconds, at which time the aircraft launches. What is the distance traveled from the starting point
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