An object whose center of gravity is above its base of support will be unstable if a vertical line projected downward from the center of gravity falls outside of the base of support
Indicate whether the statement is true or false
TRUE
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A 3.0-kg block is on a frictionless horizontal surface. The block is at rest when, at t = 0, a force (magnitude P = 2.0 N) acting at an angle of 22° above the horizontal is applied to the block. At what rate is the force P doing work at t = 2.0 s?
a. 2.3 W b. 2.0 W c. 1.4 W d. 1.7 W e. 1.2 W
The Kuiper Belt is an "outer asteroid belt" consisting of what types of solar system bodies?
A) icy cometlike bodies B) asteroids C) meteoroids D) jovian planets E) terrestrial planets
When you blow some air above a paper strip, the paper rises. This happens because
A) the air above the paper moves slower and the pressure is higher. B) the air above the paper moves faster and the pressure is lower. C) the air above the paper moves faster and the pressure is higher. D) the air above the paper moves slower and the pressure is lower. E) the air above the paper moves faster and the pressure remains constant.
Two water waves meet at the same point, one having a displacement above equilibrium of 50 cm and the other having a displacement above equilibrium of 90 cm. At this moment, what is the resulting displacement above equilibrium?
a. 140 cm b. 95 cm c. 40 cm d. Information about the amplitudes needs to be given to find an answer. e. 65 cm