5. Two people travel from Columbus to Cleveland, one by car at an average velocity of 90 km/h and one by plane at an average velocity of 300 km/h. Can their displacements be equal? Explain.

What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4×106m.

How much energy is supplied to each coulomb of charge that flows through a 12-v battery?

The temperature in gavin's oven is a sinusoidal function of time. gavin sets his oven so that it has a maximum temperature of 280°f and a minimum temperature of 240°. once the temperature hits 280°, it takes 20 minutes before it is 280° again. gavin's cake needs to be in the oven for 30 minutes at temperatures at or above 270°. he puts the cake into the oven when it is at 260° and rising. how long will gavin need to leave the cake in the oven? (round your answer to the nearest minute.)