The slope of a position versus time graph gives
A) the distance traveled.
B) velocity.
C) acceleration.
D) displacement.
B
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A 24.5-kg child is standing on the outer edge of a horizontal merry-go-round that has a moment of inertia of about a vertical axis through its center and a radius of 2.40 m
The entire system (including the child) is initially rotating at 0.180 rev/s. Find the angular velocity if the child moves to a new position 1.10 m from the center of the merry-go-round.
For general projectile motion, the vertical component of a projectile's acceleration
A) is zero. B) remains a non-zero constant. C) continuously increases. D) continuously decreases. E) any of the above, depending on position.
The energy in the water at the top of a waterfall is an example of __________ energy
Fill in the blank(s) with correct word
A generator is a device that converts
a. heat energy into mechanical energy. b. chemical energy into electrical energy. c. mechanical energy into electrical energy. d. electrical energy into mechanical energy.