A testable idea or explanation that leads to a scientific investigation is called a what

If the sheet becomes thicker, what will happen to the level of radiation at the detector?

The theory describing the movement of the plates is called plate motion theory. True or false?

an 1800 kg car is approaching a stoplight at 15 m/s. what is the deceleration of the car if the brakes provide a stopping force of 4520N

How does mechanical energy relate to the work an object can do

Which energy depends the arbitrarily assigned zero level

Place the ball in the plastic bag, and twist the top so the ball is secure in the bag. Wrap the twisted portion with tape so it stays tight. Use the hole punch or scissors to poke a hole in the part of the bag that's above the ball.

Choose The units of 1/4πε0 are: A. N2C2 B. N • m/C C. N2 • m2/C2 D. N • m2/C2 E. m2/C2

What does a fern ultimately depend on as an energy source?

According to the Doppler Effect, which statement is true about a sound as it approaches you and then moves away. A) As the source approaches you, the sound waves are compressed so the pitch of the noise increases.

If you have a beam perfectly balanced on a fulcrum and put a weight at the very end of one side, is there a way to know where you should put a heavier object on the other end?