* Which of the following is an example of projectile motion
A student sitting at their desk staring at their test
An eraser resting on the desk
A pencil mid air falling toward the ground
O A back pack placed underneath the desk

An artificial satellite circles the earth in a circular orbit at a location where the acceleration due to gravity is 6.03 m/s^2. determine the orbital period of the satellite.

How is coal extracted from mountaintop removal mines? a. dynamite is used to create underground tunnels where miners go to extract the coal. b. dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. c. coal in mountaintops is extracted by digging strips in the landscape to reach the coal. d. placer deposits in mountain river bottoms are removed by

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?