a spring balance is used to launch a 0.05 kg foam ball with a force of 5N. What acceleration is produced?

An astronomer at the equator measures the doppler shift of sunlight at sunset. from this, she calculates that earth’s tangential velocity at the equator is 465 m/s. the centripetal acceleration at the equator is 3.41  10 2 m/s 2 . use this data to calculate earth’s radius.

Answer asap! the weather patterns on earth are shown in this image. explain why there are convection currents; why there are hotter and colder parts of earth.

Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f