It does not take much effort to lift a ball off the ground. However, work is being done TO the ball as it is being lifted, giving it energy.

If an atom contains 11 protons in its nucleus, predict the element with the atomic number and electronic configuration. will the number of electrons remain the same during the chemical reaction in such an atom? explain.

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving

What can change the speed of sound as it travels through the ocean? a. salinity only b. density and salinity c. salinity and distance from land d. density and distance from land