A pendulum that on Earth has period 0.52 s is taken to the surface of a large asteroid, where it is measured to have period 1.7 s. What is the value of the gravitational acceleration on the surface of that asteroid?

A. 5.78

B. 0.48

C. 3.0

D. 0.92


C. 3.0

Physics & Space Science

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A space station out beyond the solar system is rotating with constant angular velocity. A spaceship heading into the station along a diameter of the station, uses its rockets to brake, and then docks inside the station at its center. When the spaceship docks, the angular momentum of the system consisting of the station and ship

a. is less than the original angular momentum of the station. b. is the same as the original angular momentum of the station. c. is greater than the original angular momentum of the station. d. is less than the original angular momentum of the station, but the angular velocity increases. e. is greater than the original angular momentum of the station, but the angular velocity decreases.

Physics & Space Science

Four resistors are connected in parallel: the resistance values are 4-ohms, 8-ohms,12-ohms, and 16-ohms: they are connected across a 120-volt DC supply: Find the total circuit resistance.

Physics & Space Science

The length of a certain wire is kept same while it's radius is doubled. What is the new resistance of this wire?

Physics & Space Science

Absorption lines due to the interstellar medium indicate that some components of the interstellar medium are cold and of a very low density because

a. the lines are blue shifted. b. the lines are red shifted. c. the lines are extremely broad. d. the lines are extremely narrow. e. the lines are much darker than the stellar lines.

Physics & Space Science