Which is the correct path of light through a reflecting telescope?

a). primary > > secondary > eye

b). primary > secondary > > eye

c). secondary > primary > > eyepiece

> primary > secondary > eye

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec

What is a good example of instantaneous speed

Aspring has a natural length of 8 m. if a 12-n force is required to keep it stretched to a length of 10 m, how much work w is required to stretch it from 8 m to 16 m? (round your answer to two decimal places.)