4. Describe the forces acting on a softball after it leaves the pitcher's hand. Ignore the effects of air resistance.

1. most waves are caused by vibrations. what motion in a transmitting antenna causes the vibrations that produce radio waves? 2. name two common household appliances that produce electromagnetic waves other than radio waves. what kind of electromagnetic waves do they produce? 3. when you are in a car and it passes through a tunnel, the radio signal is sometimes lost. why do you think this happens?

Why are some galaxies’ spectra blueshifted rather than redshifted? question 4 options:

Pls pls pls pls ! describe, in your own words, how you found the epicenter of the earthquake.