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A meteor whose mass was about 1.4×10^8kg struck the Earth (Mass of earth = 6.0 x 10^24 kg) with a speed of about 18km/s and came to rest in the Earth. what was the earth's recoil speed? what fraction of the metoer's kinetic energy was transformed to kinetic energy of the earth? by how much did the earth's kinetic energy change as a result of this collision?
A child rides a pony on a circular track whose radius is 4.0m, Find the distance after a complete circuit of the track
A 73 long metal string under 35.5 tension has a linear mass density 2.20×10?4, Find the frequencies of the first three harmonics
A certain cable car is San Francisco can stop in 10 s when traveling at maximum speed. how far was the car from the dog
The active element of a certain laser is an ordinary glass rod18.0 cm long and 1.21 cm in diameter. If the temperature of the rodincreases by 70.5oC, Calculate its increase in diameter
A satellites are placed in a circular orbit that is 3.64 × 107 m above the surface of the earth. What is the magnitude of the acceleration due to gravity at this distance
What is the highest speed with which an 1180-kg car can round a turn of radius 75.00 m on a flat road if the coefficient of static friction between tires and road is 0.80.
falls to the safety net while the other speeds away, to reach another swing at the same height at that of the swing they left. Illustrate what should be the distance (in m) between the two swings?
Two converging lens with a focal lengths of 10 cm are separated by 10 cm. What is the position of the final image
During the late 19th and early 20th centuries, direct observations showed that a glacier in Switzerland flowed forward in the downhill direction while its snout (terminus) was retreating higher up the valley? Which of the following describes these..
The click beetle accelerates at 400 g over a distance of 0.60 cm as it bends its thorax to click. Assuming the beetle jumps straight up what speed doesit leave the ground? How much time is required to reach this speed?
A cyclotron designed to accelerate protons has a magnetic field of magnitude 0.470 T over a region of radius 1.40 m. What is the maximum speed acquired by the protons
An electron and a positron have masses of 9.11 10-31 kg. They collide and both vanish, determine the energy of the electromagnetic radiation
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