What do ocean waves and sound waves have in common

3 small identical balls have charges - 3*10^-12,8*10^-12 and 4*10^-12 find the charge

If the distance from the source is doubled, what will happen to sound intensity

The energy provided each hour by heat to the turbine in an electric power plant is 9.0*10^12 J. If 5.4 * 10^12 J of energy is exhausted each hour from the engine as heat, what is the efficiency of this heat engine?

A car moving at 50 miles per hour speeds up steadily to 70 miles per hour over a period of 30 minutes. How far did it travel during the 30-minute period of acceleration?

Thermal energy from the sun travels to earth by?

Heat that is transferred by the movement of currents within a fluid is called?

5. What is the percent composition of sulfur in H2SO4? A. 32.7% B. 65.2% C. 98.1% D. 2.1%

A 0.8kg object accelerate at a rate of4 m/s2. What is the net force acting on a object

Which of the following is the best definition of an isotope? A. elements of the same kind with different numbers of neutrons B. elements of the same kind that have lost electrons C. elements of the same kind that have different electrical charges

Two cars approach each other; both cars are moving westward, one at 85 km/h, the other at 54 km/h. what is the magnitude of the velocity of the first car relative to (in the frame of reference of) the second car? answer in units of km/h.