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Suppose a bouncy ball were thrown against a wall. The ball hit with 15 m/s and then bounced backwards with 15 m/s. The interaction time with the wall was 0.5 ms. If the ball's mass is 0.1 kg, what is the average force of the wall on the ball?
A gamma-ray photon produces an electron-positron pair, each with a kinetic energy of 255 keV. What was the wavelength of the photon
Oasis B is located 25 km east from oasis A. A camel starts from oasis A and travels 19.6 km in the direction 14.7 degrees south of east. Then it walks 8 km directly to the north. How far is the camel from oasis B?
assume that the microwave radiation has a wavelength of 11.2 cm. How many photons are required to heat 235 mL of coffee from 25.0 ^circ rm C to 62.0 ^circ rm C.
Two particles with charges +6e and -2e are initially very far apart (effectively an infinite distance apart). They are then fixed at positions that are 4.92 x 10-10 m apart. What is EPEfinal - EPEinitial, which is the change in the electric potent..
A 4.00 kg hollow sphere of radius 5.00 cm starts from rest and rolls without slipping down a 30.0 degree incline. If the length of the incline is 50.0 cm, then the velocity of the center of mass of the hollow sphere at the bottom of the incline is:
Compare the distance he wanted to cover in the real world with the "theoretical" distance that could be covered if there was no air resistance - If the engine was close to 100% efficient how much petrol would be used to overcome air resistance duri..
a charge of -2.320 is located at 2.735 4.613 and a charge of 1.795 is located at -2.649 0 there is one point on the
Your team of test engineers is to release the parking brake so an 748.8-kg car will roll down a very long 6.2 percent grade in preparation for a crash test at the bottom of the incline. What is the terminal speed for the car rolling down this grade
a beam of light is incident from air on the surface of a liquid. if the angle of incidence is 29.0deg and the angle of
An 845 kilogram race car can drive around an unbanked turn at a maximum speed of 62 m/s without slipping. Find what would be the maximum speed if no down force acted on the car
a banner is suspended from a horizontal pivoted pole. the pole is 2.10 m long and weighs 170 n. the banner which weighs
a sample of blood is placed in a centrifuge of radius 13.0 cm. the mass of a red blood cell is 3.0 multiplied by 10-16
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