I have to do a newtons laws demo for science and I was wondering if a pencil jumping up after dropping it on a table is considered a third law

Give three examples from the lab where potential energy was converted to kinetic energy

A completely reversible heat engine operates with a source at 1500 R and a sink at 500 R. If the entropy of the sink increases by 10 Btu/R, how much will the entropy of the source decrease? How much heat, in Btu, is transferred from the source?

Compared to a 1-kg block of solid iron, a 2-kg block of solid iron has twice as much A) volume. B) inertia. C) mass. D) all of the above E) none of the above

Assume a change at the source of sound reduces the wavelength of a sound wave in air by a factor of 15. (i) what happens to its frequency?

Which statement correctly describes the motion of water particles due to the action of waves? A. they travel from one crest to anotherB. they move in opposite direction of the waveC. they rise and fall in a circular motionD. they move back and forth

Describe Earth's three global wind belts

Protons are the smallest particle of an element that retains the original Characteristics of the element. True or False

What are all the elements of a perfect graph?

Heat energy always flows from a. larger objects to smaller objects. b. heavier objects to lighter objects. c. cooler objects to warmer objects. d. warmer objects to cooler objects.

Rafael swings a baseball bat with a force of 25 N. The baseball bat exerts a force of 5 N on the baseball. What is the mechanical advantage of the baseball bat?