The average speed of the Mars Rover "Sojourner" is 1 em's. Calculate how long it would take Sojourner to cross the "Mystery Distance" (39.37) Show all of your work.

What do you think car designers do if the damage caused by a crash test is too severe?

The law of reflection states that the angle of reflection is equal to the angle of

Two blocks of aluminum (specific heat c=0.22 cal/g celsius) with masses of 1000 g and 100 g are at a temperature of 70 c. which block has more thermal (internal) energy? explain why?