What is the effeciency of the machine that has an input of 120 and an output of 96?

Radio communications were severely Distributed last week And the local newspaper says that solar activity is to blame. Which type of solar activity could the newspaper be talking about?

Which is an example of the gravitational force? 1. a basketball that was thrown in the air falls to the ground 2. the particle that makes up the neutrons in an oxygen atom are held together 3.

What is the average speed of a car that traveled 300.0 miles in 5.5 hours?

The period of rotation of Mercury in hours is 1407.6 hr. Given that Mereury has a radius of 2.4 X 10^6 m at its equator, what is the linear velocity (in m/s) at Venus's surface? (Enter the magnitude of the linear velocity at the equator.)

Most asteroids lie between the orbits of a. Jupiter and Saturn. b. Mars and Jupiter. c. Jupiter and Neptune. d. Mars and Earth.

Dispersion is the separation of white light into separate colors by A. differences in wavelength B. differences in wave amplitude C. the blocking of light D. constructive interference

Why would a person choose to tie a helium-filled balloon to a child's wrist instead of simply having the child hold on to it? A. Helium is less dense than air, so it will float above air if the child lets go of the balloon. B.

What process is the method by which a neutral object obtains an electrical charge?

Which of the following examples is most like a non-explosive eruption? Squeezing a ... A: Medium-sized rock B: Sponge soaked in water C: A raw egg D: Water balloon

Which would be best categorized as heat transfer by conduction