The average CT scan exposes a patient to an average of 20 mSv. How many CT scans would a person have to go through to be as close as possible to the amount of radiation emergency workers are limited to receiving in a life-saving situation? plz help me

Clyde and marilyn are riding a roller coaster. during which section(s) of the track is their potential energy converted to kinetic energy? a. from point b to point c only b. from point b to point d only c. from point a to point b only d. from point a to point b and from point c to point d

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.

Aman applies a force of 500n to push a truck 100m down the street how much does he do?