Select all the correct answers. In the diagram, the Sun, Earth, and Moon are in perfect allgnment. Which two concluslons can be drawn based on the dlagram?
Earth's
shadow
Earth
Sun
Moon
O
O
O
O
O
An observer on the Moon sees a solar eclipse.
An observer on the Moon sees a lunar eclipse.
An observer on the Moon sees a partial eclipse.
An observer on Earth sees a lunar eclipse.
An observer on Earth sees a solar eclipse.

An athlete swings a ball, connected to the end of a chain, in a horizontal circle. the athlete is able to rotate the ball at the rate of 8.13 rev/s when the length of the chain is 0.600 m. when he increases the length to 0.900 m, he is able to rotate the ball only 6.04 rev/s. (a) which rate of rotation gives the greater speed for the ball? 6.04 rev/s 8.13 rev/s (b) what is the centripetal acceleration of the ball at 8.13 rev/s? m/s2 (c) what is the centripetal acceleration at 6.04 rev/s? m/s2