light has a wavelength 600 nm in a vaccum. It passes into galss which has an index of refraction of 1.5. What is the frequency of the light inside the glass

A- a of 8.00 cm a of 34.0 nc. a , -, a of 25.0 nc is on of a of 15.0 cm .be toto aof ? a) b) c) j d) e)

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

Abatter hits a 0.140-kg baseball that was approaching him at 30 m/s and, as a result, the ball leaves the bat at 40 m/s in the reverse of its original direction. the ball remains in contact with the bat for 2.0 ms. what is the magnitude of the average force exerted by the bat on the ball?