Mr. franklin uses a machine that has an efficiency of 80%. the machine applies a force of 800 n through a distance of 20 m. mr. franklin applies a force of 50 n on the machine. through what distance does mr. franklin apply the force?
a. 4 m
b. 16 m
c. 260 m
d. 400 m

The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.

By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?

What structural formula represents 4 electrons shared between two atoms?