A team of bicyclists are on bikes that require 512 J of work to ride. It takes 432 J of work for the bike to turn the gears. What is the mechanical efficiency of the bike?

A car travels 200 km SE for 5 hours. What is the car's velocity?

Which waves have the highest frenquencies? A - waves with the lowest energy B - UV C - microwaves D - waves with the highest energy

You look for shells when you visit the beach. However, if you're hiking in the mountains and you find shells by accident, you know that A) the mountain has a lake nearby. B) the mountain was once under the sea.

Is it possible for two pieces of the same metal to have different recrystallization temperatures? Is it possible for recrystallization to take place in some regions of a part before it does in other regions of the same part? Explain

Consider scenarios A to F in which a ray of light traveling in material 1 is incident onto the interface with material For the scenarios in which total internal reflection is possible, rank the scenarios on the basis of the critical angle, the angle

Water has a specific heat of 4.186 J/g°C, and ethanol has a specific heat of 2.450 J/g°C. Based on this information, which best compares water and ethanol? It requires more heat to raise the temperature of a gram of ethanol by 1°C.

Try it A volleyball player's hand applies a 39 N force while in contact with a volleyball for 2 seconds. What is the impulse on the ball?

Muscular strength is defined as:

Which piece of playground equipment could be used to model and explain the movement of matter in the biosphere

A 4-kg ball has a momentum of 12 kg∙m/s. what is the ball's speed?