Human power can be used to generate electricity by connecting a bicycle to a generator. The efficiency of the bicycle and generator together is 0.6. A man riding the bicycle has a power output of 220W.

Calculate the power output of the generator.

Which of the following can fix nitrogen? A:human industrial processes B:lightning C:certain bacterial species D:all of the above

What is the meant by the frequency of a wave? What is the unit?

What is the net force on a 2-kg skateboard accelerating at a rate of 2 m/s/s?

Why does the surface of the sun appear to have a sharp edge?

What is the impulse that a car with a mass of 6kg experiences when its velocity changes from 23m/s to 6m/s? What is the impulse that the wall creates when it applies a force of 29N over a period of 7s in a collision? A ball of clay with a mass of.

Which of the following best describes a virus? A. amino acids surrounded by chitin B. DNA surrounded by RNA C. a prokaryotic unicellular organism D. nucleic acids surrounded by a protein coat

In which terrestrial biome would you expect to rake leaves? Question 3 options: temperate deciduous forest taiga (coniferous forest) savanna tundra

The net force acting on a 50kg crate is 0 N. what is the crates accelratiin

How long in seconds will it take a car traveling at 100 miles/hour to travel the length of an American Football field?

If you increase the mass of an object, but keep the force on it constant, its acceleration decreases? true or false