What forces are acting on matter through contact or no contact

What happens to the mass of the substances when something dissolves?

the specific heat of water is 4.186. suppose 100 J of heat is added to a body of water that is insulated and the temperature rose 1 degrees Celsius. how much mass of water is the body of water?

9 volt battery is connected to three 20 Ohm resistors in series. What is the total resistance of the load and current through each?

If an object weighs 39.2 n on earth, what is its mass

10. Which of the following is an acceleration? a. 12 m/s2 down b. 5 m/s up c. 8N West

If you are 3.00 m from speaker A directly to your right and 3.50 m from speaker B directly to your left, will the sound that you hear be louder than the sound you would hear if only one speaker were in use?

How much more ground motion is produced by an earthquake of magnitude 7.0 than by an earthquake of magnitude 4.0?

What evidence is there of life in a mini habitat?

A hole is drilled to the center of the earth and a ball is dropped into it. When the ball is at the earth's center, compared with their respective values at the earth's surface,

What is the development of static?