Physics, 26.06.2020 23:01 talainalover23
A car traveling 20 m/s to the north collides with a car traveling 10 m/s to the
south. Each car has a mass of 800 kg. If the system is defined as the two
cars, what is the change in momentum of the system due to the collision?
A. 24,000 kg. m/s
B. 16,000 kg•m/s
C. 0 kg•m/s
D. 8000 kg•m/s
Answers: 1
Physics, 22.06.2019 01:00
An incident ray through the focal point of a spherical mirror will: reflect through the center of curvature. reflect back through the focal point. reflect parallel to the principle axis. reflect the same direction as the incident ray.
Answers: 1
Physics, 22.06.2019 04:30
Afeather of mass 0.001 kg falls from a height of 2 m. under realistic conditions, it experiences air resistance. based on what you know about friction, what can you say about the kinetic energy of the feather as it reaches the ground? acceleration due to gravity is g = 9.8 m/s2. a. ke < 0.0196 j b. ke = 00196 j c. je = 0 j d. ke > 0.0196 j
Answers: 1
Physics, 22.06.2019 13:40
Awind turbine is rotating counterclockwise at 0.5 rev/s and slows to a stop in 10 s. its blades are 20 m in length. (a) what is the angular acceleration of the turbine? (b) what is the centripetal acceleration of the tip of the blades at t=0s? (c) what is the magnitude and direction of the total linear acceleration of the tip of the blades at t=0s?
Answers: 1
A car traveling 20 m/s to the north collides with a car traveling 10 m/s to the
south. Each car has...
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