In the rotating Earth/Moon system, centrifugal force is equal to the gravitational force, but operates in the opposite direction. True or false?

Why is earth's surface not riddled with craters as is that of the moon?

What are the units of speed or velocity

On a cold winter day, the air temperature is 2°c and the wet-bulb temperature is - 1°c. what is the relative humidity at this location?

The lens in the eyepiece of a telescope magnifies light by bending it. What is this bending called?

Which has the largest range in air 1. alpha particle, 2. beta particle 3. gamma rays 4. neutron

Why should scientists write reports and give oral presentations of the steps and results of their in investigations?

Which of these rocks are formed by volcanic activity? select the two correct answers. a. marble b. basalt c. limestone d. granite e. sandstone

Which source is most likely an authority on the subject? Dr. Vale, a pediatrician, discusses electrical circuitry on her home-improvement website. Jonah, an amateur cook, teaches his son how to make the best grilled cheese sandwiches.

What methods can be used to break down substances into elements

8. A gas is contained in a horizontal piston-cylinder apparatus at a pressure of 350 kPa and a volume of 0.02 m3. Determine the work done by the piston on the gas if the cylinder volume is increased to 0.15 m3 through heating.