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A tennis ball of mass 57 g travels with velocity < 70, 0, 0 > m/s toward a wall. After bouncing off the wall, the tennis ball is observed to be traveling with velocity < -64, 0, 0 > m/s.
A) What is the change in the momentum of the tennis ball?
B) What is the magnitude of the change of momentum of the tennis ball?
C) What is the change in the magnitude of the tennis ball's momentum?
When 50-ml of a liquid is heated through 20 degree centigrade, its apparent expansion was 0.5 ml. If the coefficient of linear expansion of the container is 9 x 1/1000000 per K, find the coefficient of real expansion of the liquid.
An Escort and a Camaro traveling at right angles collide and stick together. The Escort has a mass of 1300 kg, What was the speed of the Camaro
Starting from rest, a 98 kg firefighter slides down a fire pole. The average frictional force exerted on him by the pole has a magnitude of 800N, and his speed at the bottom of the pole is 3.2 m/s. How far did he slide down the pole.
Two charged particles, Q1 = +4.90 nC and Q2 = -2.80 nC, are separated by 36.0 cm. What is the electrical potential energy of the pair
An ?-particle has a charge of +2e and a mass of 6.64 ? 10-27 kg. It is accelerated from rest through a potential difference that has a value of 1.06 X 106 V, What is the speed of the ?-particle
The pilot of an airplane executes a loop-the-loop maneuver in a vertical circle. What is the pilot's apparent weight at the lowest point if his true weight is 160 lb
A 2000 kg car is traveling at a constant 15.0 m/s down a long mountain grade of 2.0%. The mountain road is 5.0 km long. What is the increase in the temperature of the brakes
A banana has 0.45 g of potassium. 0.0117% of that potassium is 4019K, What is the activity of the banana
A dolphin located in seawater at a temperature of 25 °C emits a sound directed toward the bottom of the ocean 200m below. How much time passes before it hears an echo.
Use the Rydberg equation to calculate the wavelength in nm of the light emitted, What is the color of the light emitted
Two protons are moving directly toward one another. When they are very far apart, What is the distance of closest approach?
Tritium with a half-life of 12.3 years is used to verify the age of expensive brandies. how many years ago was it produced
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