3

The manufacturer of a machine said that it is 86 percent

efficient. If you use 70 joules to run the machine (input work),

how much output work will it produce?

What obstacles will you need to deal with to build railroad routes

A 60 kilogram astronaut weighs 96 newtons on the surface of the moon. calculate the acceleration due to gravity on the moon.

Describe scalar and vector quantities. Include a definition and provide at least one example of how they are alike and how they are different.

A box is at rest with respect to the surface of a flatbed truck. the coefficient of static friction between the box and the surface is μs.

Feng and Isaac are riding on a merry-go - round. Feng rides on a horse at the outer rim of the circular platform, twice as far from the center of the circular platform as Isaac, who rides on an inner horse.

In what state do hydrogen and helium exist in a star

13) The frequency of a vibrating string varies inversely as its length. A string 3 feet long vibrates 175 cycles per second. Find the frequency of a 5 foot string.

Match the following. 1. energy a push or a pull 2. mechanical energy energy of a moving object 3. kinetic energy a force directed away from an object 4. heat the ability to do work 5. work a force moving an object through a distance 6.

Scientists hypothesize that oxygen began to accumulate in earth's atmosphere of living things with the ability to?

The 3 stages of the water cycle are