Is mechanical energy conserved as a playground swing moves? Why or why not?

17. a car is traveling at a constant velocity of 60 km/h for 4 hours means

John has a barometer for measuring atmosphere pressure as he climbes mt. Everest the highter he gets the higher the pressure reading is this a result he should expect

What is the average velocity for the time segment A on the Velocity vs. Time Graph? A. 5 m/s B. 10 m/s C. 20 m/s

What is a solution that has the capacity to hold additional solute at a given temperature called

A 1200 W refrigerator, a 1500 W electric frying pan, and a 200 W lamp are plugged into the same outlet in a 15 A, 220 V circuit. (these devices are in parallel when plugged into the same socket.) What current (in A) is drawn by refrigerator?

A ladder placed up against a wall is sliding down. The distance between the top of the ladder and the foot of the wall is decreasing at a rate of 9 inches per second.

What number is neutrons protons electrons of helium

A pendulum is swinging back and forth with a period of 2.0 seconds here on Earth. This pendulum is then brought to the Moon. What will happen to the period of the pendulum, assuming everything else about it remains exactly the same? Explain.

A car drives 125 meters in 5 seconds. calculate the cars speed

A car speeds up as it rolls down a hill. Which is this an example of? A. positive acceleration B. negative acceleration C. relative velocity