How old id the earth

What is the total energy of a 175,000kg shuttle orbiting the Earth at 600km above Earth's surface?

If you start with two sinusoidal waves of the same amplitude traveling in phase on a string and then somehow phase-shift one of them by 5.4 wavelengths, what type of interference will occur on the string?

When a positively charged rod is used to charge a second rod by induction, the induced charge is?

What is the fourth planet from the sun and how many planets are there

Which types of matter are made of atoms

If the weight is 950 newtons, what is the mass?

You are standing against the wall near a corner of a large building. A friend is standing against the wall that is around the corner from you. You can't see your friend. How is it that you can hear her when she talks to you?

What is general relativity in easy terms?

Temperature and volume are directly or inversely

My Notes A basketball rolls across a classroom floor without slipping, with its center of mass moving at a certain speed. A block of ice of the same mass is set sliding across the floor with the same speed along a parallel line.