A) One medium is air, in which light has a speed of 3.00 × 108 m/s. The other medium is ice, in which light has a speed of 2.29 × 108 m/s. Use this information to identify medium A and medium B. Explain b) Do you know in which direction the light beam is travelling? Does it matter? Explain.

How much work is done lifting a 9.10 kg box straight up onto a shelf that is 1.80 m high?

What happens when chlorine reacts with bromine? a. electrons move from the chlorine atoms to the bromine atoms. b. electrons move from the bromine atoms to the chlorine atoms. c. electrons are shared between the chlorine atoms and the bromine atoms. d. electrons become delocalized among the atoms.

Astudent is working in the lab to determine how time affect impulse the student keeps the force the same in each row but changes impact the time some data is shown witch trial has the greatest a student is working in the lab to determine how time affect impulse the student keeps the fours the same in each row but change is the impact time some data shown witch trial has the greatest impulse