Physics, 16.04.2021 20:40 squawk1738
P Block X of mass mois at rest at the top of a ramp, and the block's center of mass is at a height H above the ground. Block X is then released from rest, and it slides down the ramp and collides with block Y of mass mo, which is initially at rest and has its center of mass at a height h above the ground. At the moment before the collision, block X has a speed of vo- After the collision, block Y travels such that it lands at point P. Consider the block X-block Y system from the moment in time that block X is released from rest to the moment immediately after block X collides with block Y. Which of the following claims best describes the system? A Because the total momentum of the system does not remain constant, the system is open. B. Because the total kinetic energy of the system does not remain constant, the system is open с Because the total momentum of the system remains constant, the system is closed Because the total kinetic energy of the system remains constant, the system is closed
Answers: 2
Physics, 22.06.2019 01:30
Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.
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Physics, 22.06.2019 19:00
Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m
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Physics, 22.06.2019 20:00
Awave that is traveling fast can be said to have a high a. frequency b. speed c. wavelength d. amplitude e. period f. none of these
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P Block X of mass mois at rest at the top of a ramp, and the block's center of mass is at a height H...
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