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After a satellite is blown apart, the first part has speed v1 = 0.63c and the second one has a speed v2 = 0.91c. If the mass of the first is 152 kg, to the nearest tenth of a kg what is the mass of the second piece?
ou place it in water and it displaces a volume of 20 cubic centimeters of water. What is the hardness of this mineral? describe your answer.
the giant swing at the county fair consists of a vertical central shaft with a number of horizontal arms attached at its upper end. find the time of one revolution of the swing
At what speed does the speed of the ball change relative to the cab floor (sign and magnitude)?
A motorist drives south at 22 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.40 min, and finally travels northwest at 30 m/s for 1.00 min. For this 6.40 min trip, find out the following values.
Starting from rest, a 4.80-kg block slides 2.00 m down a rough 30.0° incline. The coefficient of kinetic friction between the block and the incline is ?k = 0.436. Determine the work done by the friction force
An electron has a speed of 0.750c. Find the speed of a proton that has the same kinetic energy as the electron
Two equally charged particles, held 3.4 × 10-3 m apart, are released from rest, what are the mass of the second particle and, the magnitude of the charge of each particle
Two different balls are rolled (without slipping) toward a common finish line. Their angular speeds are shown to the right. how long does each ball take to reach the finish line
A person pushes a 19.6-kg shopping cart at a constant velocity for a distance of 27.3 m on a flat horizontal surface. What is the magnitude of the force that the shopper exerts
What is an amplitude at a point where two pulses are crossing if the end at which reflection occurs is free to slide up and down.
An athlete crosses a 28 m wide river by swimming perpendicular to the water current at a speed of 0.8 m/s relative to the water. What is the speed of the swimmer with respect to a friend at rest on the ground
A ball whose diameter is 6 cm is placed 70 cm in front of a convex spherical mirror. If the focal length of the mirror is -30 cm, what is the diameter of the ball as viewed in the mirror
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