Why is it important to know the velocity of an object, not just its speed?

Speed is only useful for fast-moving objects.

Velocity also tells you direction of motion.

Speed is always an average.

Velocity tells you the average speed.

A traveling sinusoidal electromagnetic wave in vacuum has an electric field amplitude of 91.1 V/m. Find the intensity of this wave and calculate the energy flowing during 17.1 s through an area of 0.

Scientific laws are so complex that they can rarely be explained by mathematical equations. True or false?

Many new headphones on the market are called "noise reducing" because they take sound waves that come in from the outside and add a sound wave to it that is exactly opposite (out of phase) to it, these add together to make no noise.

What is the conversion from 1.2 mm to m

Why is schizophrenia considered to be multifactorially inherited?

If you apply a force of 1.0 n to a cart of mass 1.0 kg with negligible friction, what do you expect the acceleration to be?

How does a stars life begin?

Bart stole a watermelon and ran 5,000 feet from the cops and they chase lasted 0.1 hours how fast was Bart running in miles per hour

suppose you had two small boxes, each containing 1.0 g of protons. (a) If one were placed on the moon by an astronaut and the other were left on the earth, and if they were connected by a very light (and very long!

In a car changes its philosophy from 32 km/hour to54 km/hour in 8.0 seconds, what is its acceleration?