Suppose that sound travels at a speed of 345 m/s on the evening of a
thunderstorm. There is a lightning strike some distance from your home.
The light reaches you nearly immediately. Yet the thunder is heard 4.5
seconds later. How many miles from your home did the lightning strike?
(1600 meters = 1 mile) *

One object has a mass of 1 kg and another object has a mass of 3 kg. if the speeds are the same, which of the following is true about their kinetic energy?

According to newton’s law of universal gravitation, which statements are true? as we move to higher altitudes, the force of gravity on us decreases. as we move to higher altitudes, the force of gravity on us increases. as we gain mass, the force of gravity on us decreases. as we gain mass, the force of gravity on us increases. as we move faster, the force of gravity on us increases.

Acid precipitation chemically weathering a 5.0-kg limestone rock . which coukd be the result ?