Which has greater kinetic energy?

A) a car traveling at 30 km/hr
B) a car of half the mass traveling at 60 km/hr
C) both the same
D) need more information


Answer: B

Physics & Space Science

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The instability strip is the region of the H-R diagram in which stars are stable to pulsation

Indicate whether the statement is true or false

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The surface of hot water has a relatively high rate of

A) evaporation. B) condensation. C) conductivity. D) convection.

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If the distance between two point charges is doubled, the mutual force between them will be changed by what factor?

a. 4 b. 2 c. 1/2 d. 1/4 e. 1

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A 1000 kg car experiences a net force of 9500 N while decelerating from 30.0 m/s to 23.4 m/s. How far does it travel while slowing down?

A) 21.9 m B) 20.2 m C) 18.5 m D) 17.4 m

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