Explain how you could separe a mixture of sand and salt

Give 3 visible examples of motion that is caused by forces from non-living things

Approximately how much electrical energy does a 5-W light bulb convert to radiant or thermal energy in one hour

Words that describe direction east, up, and left is it true or false

Which is a necessary part input for all heat engines? A) Steam to act as a working substance B) An energy source, such as fuel or electrticity C) A device to generate electrticity D) Luiqid water to act as a working substance

Is this true or false: a scientific fact is something that is absolute and unchanging?

A starship passes Earth at 80% of the speed of light and sends a drone ship forward at half the speed of light rela - tive to itself. Show that the drone travels at 93% of the speed of light relative to Earth.

Rubies are used in electronics

Two kids are on a merry-go-round that is turning at a constant rate. ariel is near the outer edge, and bob is closer to the center. ariel has answer (smaller, the same, or greater angular speed?

Visit this website and locate the element mercury, whose chemical symbol is Hg. Click on the square to read about the history, properties, and uses of mercury. Name three uses for mercury.

Ten seconds after starting from rest, a car is moving at 40 m/s. what is the car's acceleration in meters per second per second?