What are four uses of radioactive isotopes?

A meter stick sits on a pivot. You place 4 nuts 10 cm away from the pivot. Where would you place a single nut to make the meter stick balance?

What is the difference between mechanical digestion and chemical digestion in the mouth

What phenomena provides evidence of electric fields in the atmosphere

If a certain material heats up quickly and cools down quickly, the material likely has

Gravitational potential energy is a form of potential energy A.) caused by gravity alone. B.) caused by gravity and that depends on an object's position and mass. C.) caused by gravity and that depends on an object's mass, but not its position. D.

Consider this statement: Air is matter. Which facts best support the statement? A. Balloons can be filled with air. B. Air is essential for life to exist. C. Air has mass. D. Air is not an element. E. To float on air is to be happy. F.

Hydroelectric power uses: wind water coal the sun

Two lightweight metal spheres are suspended near each other from insulating threads. One sphere has a net charge; the other sphere has no net charge. The spheres will: A. Attract each other B. Exert no electrostatic force on each other C.

Read the given list of organisms. squirrel, zebra, tortoise, rabbit, horse What best describes the role of these five organisms in a food web?

What are the SI units for specific heat capacity