An astronomer at the equator measures the Doppler shift of sunlight at sunset. From this, she calculates that Earth’s tangential velocity at the equator is 465 m/s. The centripetal acceleration at the equator is
3.41 10 2 m/s2

. Use this data to calculate Earth’s radius.

How does a circuit breaker protect a refrigerator? a. when the current is too high, a metal strip in the fuse melts and opens the circuit. b. when the resistance is too high , a re-settable which opens a circuit c. when the current is too high , a re-settable switch opens the circuit d. when the resistance is too high a metal strip in the fuse melts and opens the circuit

Examples of states of consciousness include a. daydreaming b. dreaming during sleep c. hypnosis d. all of the above

First to answer will be the brainliest i need the answer asap