What is the force that can cause two pieces of iron to attract each other?

Which do you think will penetrate farther into a block of lead, x-rays, or gamma rays

When the boy tire maker married the girl tire maker what did everyone say?

A 5kg ‏ Of copper specific heat capacity = 385j/kg C at 20 c is given 46200 j of energy what will be the final temperature

Scientists have utilized the Very Large Array in New Mexico to do ALL BUT ONE of the following. That is A) discover water on the planet Mercury. B) map the center of the Milky Way Galaxy. C) chart the surface features of the Moon.

Which moon phase occurs when the entire surface of the moon facing earth is illuminated?

Your car travels 600 miles in 6 hours. You stop the car for lunch for 1 hour and then you continue on your trip for another 14 miles and finish the entire trip in 8 hours. What was your car's average speed while you were driving?

Speed is a vector quantity

The observation location A is located at m. The conventional current running through the wire is 7.5 amperes. In this exercise you will calculate the magnetic field at the observation location due only to segment 4 of the wire.

The wavelength of a light wave can be used to measure which of the following? A. The direction the wave is traveling B. How many photons the wave contains C. How much energy the wave has D. How high the top of the wave is

Sound 1 has an intensity of 38 W/m2. Sound 2 has an intensity level that is 2.5 dB greater than the intensity level of sound 1. What is the intensity of sound 2?