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A soccer ball is released from rest at the top of a grassy incline. After 6.3 sec, the ball travels 51m. One sec later, the ball reaches the bottom of incline.
a) Find what was the soccer ball acceleration? (Suppose that the acceleration was constant.)
b) Find how long was the incline?
A beam of light traveling in air strikes the surface of mineral oilat an angle of 19.8° with the normal to the surface. If the light travels at 2.17X108 m/sin the oil,
A steel ball bearing 8.0 mm in diameter is dropped into a cylinder of glycerin. What is the terminal velocity of the ball bearing
A 2.90 kg lump of aluminum isheated to 92.0°C and then dropped into 7.30 kg of water at 5.00°C. what is the system's final(equilibrium) temperature
The average lifetime of a pi meson in its own frame of reference (i.e., the proper lifetime) is 2.6 10-8 s. What distance would it travel if time dilation did not occur
Four point charges, q, are fixed to the four corners of a square that is 10.3 cm on a side. What is the magnitude of each fixed charge in coulombs
Lithium hydride, 7LiH, is a potential fuel for fusion reactors because it is one of the few compounds of very light elements that exists as a solid, and is therefore more dense than gaseous fuels even under extreme conditions
A roller-coaster car may berepresented by a block of mass 50.0 kg. The car is released fromrest at a height h = 45.0 m above the ground and slides along africtionless track. The car encounters a loop of radius R = 15.0 mat ground level, as shown.
Consider two antennas separated by 14.0 mthat radiate in phase at 85 MHz. Areceiver placed 150 m from both antennas measures an intensity/0. The receiver is moved so that it is2.2 m closer to one antenna than the other.
A metal ball with a mass of 3.71·10-6 kg and a charge of +5.77 mC has a kinetic energy of 4.99·108 J. It is traveling directly at an infinite plane of charge with a charge distribution of +3.21 C/m2. If it is currently 1.87 m away from the plane of c..
The mast of a sailboat is supported at the bow and stern by stainless steel wires, the forestay and backstay, Find the tension in the backstay and the force that the mast exerts on the deck
An empty boat is placed in a freshwater lake and a mark is painted on the hull at the waterline, a line corresponding to the surface of the water when the vessel is floating upright, where is the new waterline mark located on hull of the boat
A block of mass 5.1kg rests on a plane inclined at an angle of22degrees. What is the frictional force on the block
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