Select all that apply. If, after extensive research, the expected observations predicted by a theory fail to materialize, then the theory .
1 is probably false
2 should never be retracted
3 should be abandoned or modified
4 is confirmed

You throw a baseball directly upward at time t = 0 at an initial speed of 12.3 m/s. what is the maximum height the ball reaches above where it leaves your hand? at what times does the ball pass through half the maximum height? ignore air resistance and take g = 9.80 m/s2.

If the new moon happens on january 15th, what shape will it be on february 6th?

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