How do you find input energy with only the efficiency and output energy given?

Do you think then solid can undergo convection

An astronaut has a mass of 85 kg. Calculate his weight on earth and on the earth's moon. (Gmoon = 1.6 m/s). Does his mass change when he goes from earth to its moon?

A car with good tires on a dry road can decelerate (slow down) at a steady rate of about 5.0 m/s2 when braking. if a car is initially traveling at 55 mi/h part a how much time does it take the car to stop?

Which part of the earth is considered to be the center

A 150-kg roller-coaster car climbs to the top of a 91 - m - high hill. How much work is done against gravity as the car is lifted to the top of the hill?

What physical property makes the red light different from blue light, or radio waves different from microwaves?

describes how the color and texture of a surface affect absorption and reflection of solar radiation?

What does infrastructure refer to? process by which a nation improves the economic, political, and social well-being of its people level of farming in which a person raises only enough food to feed his or her family services and facilities necessary

Sophee left her house on her bike and traveled 3 kilometers north, 5 kilometers east, 3 meters south, then 5 meters west arriving home in time for dinner. What is her distance and displacement?

What would happen to the average kinetic energy of the molecules of a gas sample if the. temperature of the sample increased from 20°c to 40°c?