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A 1.2-kg object moving with a speed of 8.0 m/s collides perpendicularly with a wall and emerges with a speed of 6.0 m/s in the opposite direction. If the object is in contact with the wall for 2.0 ms, what is the magnitude of the average force on the object by the wall?
In July 2005, NASA's "Deep Impact" mission crashed a 372-kg probe directly onto the surface of the comet Tempel 1, hitting the surface at 37000 km/h. What change in the comet's velocity did this collision produce
A betatron is a charged particle accelerator that works by generating an induced electric field to accelerate the charged particles. What is the amplitude of the oscillating electric field at a distance 0.62 m from the axis of the betatron
sound source a is located at x 0 y 0 andsound source b is place at x 0 y 2.9 m. the two sources radiate coherently
A satellite is in orbit about Earth. Its orbital radius is1.28×107 m. The mass of the satellite is 2849 kg and the mass of Earth is 5.979×1024 kg. Determine the orbital speed of the satellite in mi/s. 1 mi/s = 1609 m/s.
A sample of an unknown material weighs 260N in air and 155 N when immersed inalcohol of specific gravity 0.700. What is the volume of the material
A 12.5 gram bullet is fired into a board. The board is subjected to a force of 3.50x104 Newtons when it hits the board. If the bullet travels 3.50 cm before coming to a stop, what was the initial speed of the bullet
Compute the critical edge load NxCR for a plate simply supported around the boundary, with length a = 2 m (along x), width b = 1 m, t = 1 cm.
Two cars, both of mass m, collide and stick together. Prior to the collision, one car had been traveling north at speed 2v, while the second was traveling at speed v at an angle phi south of east (as indicated in the figure).
The International Space Station orbits at a distance of 355 km above the surface of the Earth. What is the gravitational acceleration it experiences
An astronaut is being tested in a centrifuge. The centrifuge has a radius of 10 m and, in starting, rotates according to ? = 0.30t2, where t is in seconds and ? is in radians. (a) When t = 15.0 s, what is the magnitude of the astronaut's angular v..
Explain the success that Lane Bryant has experienced in relation to self-concept, self-esteem, and self-consciousness.
Find out the angle between the filter's polarizing axis and the direction of polarization of light necessary to increase the ratio of the clouds' intensity to that of blue sky so that it is three times the normal value.
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