What is the minimum diameter of a mirror on a telescope that would allow you to resolve objects with angular separation of 3.5 cross times 10 to the power of negative 5 end exponent radians ? Assume an average wavelength of 550 nm for the light received.

Eddy whose mass is 55kg climbs up the 1.50 meter high stairs in 2s. calculate eddy’s power rating

Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?

Why does lightning travel from clouds to the ground?