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A bungee cord is stretched between two poles with a force of 415 N. The length of the cord is 35 meters and it has a mass of 7.6 kg. What is the velocity of a wave on this bungee cord?
A 535 kg automobile slides across an icy street at a speed of 54.5 km/h, What is the speed of the two cars just after they collide
An ice skater slides at a speed of 25 km/h on a level ice track. At this point she allows herself to coast to a complete stop
When the pitcher throws his fastball aimed at the clay, the ball becomes embedded in the clay and the two swing up to a maximum height of 0.11 m. If the mass of the baseball is 0.21 kg, find out the speed of the pitch. Please provide step by step ..
A cardinal (Richmondena cardinalis) of mass 3.60×10-2 and a baseball of mass 0.146 have the same kinetic energy. What is the ratio of the cardinal's magnitude of momentum to the magnitude of baseball's momentum.
In the rainy season, the amazon flows fast and runs deep. In one location, the river is 23m deep and moves at a speed of 4.0m/s toward the east. what is the potential (magnitude and sign) at the surface
Sit on a rotating chair. Slowly twist your body in one direction and after that rapidly twist it in the other. What is going to happen? Is angular momentum conserved and if not why.
An antifreeze solution is made by mixing ethylene glycol (? = 1130 kg/m3) with water. determine the volume percentage of ethylene glycol in the solution
Suppose 2.50 kg of 32 degrees C water is mixed with 9.30 kg of 65 degrees C water. If no heat is lost in this system, what is the final temperature of the water
Four charged particles rest at the corners of a square of side a = 0.30 m. Charges 1 through 4 are 10, 20, 30 and 40 µC, Determine the electric field at the center of the square
A thin rod with length L has a linear density that varies as D = dm/dx = Ax, Calculate the total mass of the rod in terms of A and L
189.35 J of energy are transferred to a system in the form of heat while the internal energy decreases by 46.99 J
Suppose you're skiing up a 20m tall slope at the indicated angle of inclination. What minimum initial speed must you have at the bottom to just make it to the top
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