You want to create a device that sends signals to your dog to stop barking. which type of electromagnetic wave would be most useful to investigate?
gamma rays, because they are powerful and safe.
microwaves, because they are high energy and powerful.
radio waves, because they are low energy and safe.
x–rays, because they are low energy and can pass through things.

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

Urgent pls a. coal consumption levels off and remains flat. b. petroleum, natural gas, and renewables show an increase in consumption c. more nonrenewable resources continued to be consumed than renewable. d. there is little projected increase in nuclear energy use. e. carbon dioxide emissions are projected to decline as we approach 2040. global energy consumption is defined as the total energy used by an individual or organizations from around the world. use the graph above to analyze the projected energy consumption from now until 2040. which statements in the prompt apply? a) a, b, d b) b, c, d c) a, c, d d) a, b, c, d

The energy equivalent of the rest mass of an electron is