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 surface of hot water has a relatively high rate of
A) evaporation. B) condensation. C) conductivity. D) convection.
Physics & Space Science
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
Physics & Space Science
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
Physics & Space Science
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
Physics & Space Science