Light hits a mirror at a 45° angle. It will be reflected at an angle of what

The formula for average speed can best be written as

How are sound waves and electromagnetic waves different?

Which of the following is a physical quantity that has a magnitude but no direction? a. vector b. scalar c. resulant d. frame of referance

Glass marble has a volume of 5 cm and a mass of 30 g what is the density of the marbel

With an average acceleration of - 1.3 m/s2, how long will it take a cyclist to bring a bicycle with an initial speed of 13.0 m/s to a complete stop? Answer in units of s.

the acceleration of gravity is 28 times on sun than earth. Imagine there is a space suit that let you stand on sun. Calculate the weight of 100 kg person on earth in newtons

A force of 20 n acts upon a 5 kg block, calculate acceleration of the object

What resultant force is needed to accelerate a train of mass 3.41000000 kg from rest to 15.0ms in exactly 20s

I to fall in love with someone or to at least get a boyfriend

Is rain falling a contact or noncontact force