What are words that involve waves (amplitude, energy, frequency, etc)

2) what happens when a force acts upon an object?

Is the 9 planets in the world or has no one found another one

Add or subtract as indicated: a. 5.80*10^9s + 3.20*10^8s b. 4.87*10^-6m - 1.93*10^-6m c. 3.14*10^-5kg + 9.36*10^-5kg d. 8.12*10^7g - 6.20*10^6g How do I solve these?

A batter hits a pop up straight up over home plate at a initial velocity of 25m/s. The ball is caught at the same height that it was hit.

Which of the following is not a possible source of energy for chemosynthetic organisms? a. oil b. hydrogen sulfide c. methane d. water

A resistor has 1.50 V potential difference across its ends. it develops thermal energy at a rate of 327 W. What is the current in the resistor? A. 68.8 A B. 14.5 A C. 45.9 A D. 21.8 A

A bucket is filled faster at the lower stairthan at the upper stair why

An electric current is produced using a bar magnet and a solenoid. Which changes will cause a decrease in the electric current produced? Check all that apply.

Four balls have the same temperature. Which ball has the most thermal energy?

Ships A and B leave the same port. Ship A sails at 20 knots (nautical miles per hour) and ship B sails south at 15 knots. At what rate is the distance between them changing at 2 pm if: a. A and B both leave at noon. b.