The main difference between speed and velocity involves

A. gravity.

B. weight.

C. direction.

D. distance.

When heat is converted into another form of energy, the total amount of energy is constant. Which law best illustrates this statement? A. the first law of thermodynamics B. the second law of thermodynamics C. the third law of thermodynamics D.

Two positive charges of 2.8 x 10^-6 are separated by 0.50m. What force exists between the two charges?

Paceship 1 and spaceship 2 have equal masses of 300 kg. spaceship 1 has a speed of 0 m/s, and spaceship 2 has a speed of 4 m/s. what is the magnitude of their combined momentum?

If the temperature warning light/gauge goes on, what should one do? Stop as soon as you can at a safe place and shut the engine off. Open the radiator cap to check the water level. Keep driving to the nearest mechanic.

A jet travels 2250 km westward at a speed of 960 km/hr. it then encounters a strong headwind and its speed drops to 805 km/hr for the next 1320 km of its westward trip. what is the average velocity for the trip?

Which is a result of using a machine? The amount of work that is done is increased. The work input is less than the work output. Both the force and the distance through which it acts increase.

What is the difference between electromagnet and electromagnetism?

Which of the following can be determined by studying the spectrum of a star? the chemicals in the atmosphere of the star the motion of the star the temperature of the atmosphere of the star all of the above

How do I find the specific heat of an object?

In order to be considered scientific, evidence must be: