A boy kicks a football with a force of 420.0 N for a time of 22.3 s. What is the impulse and change in momentum?

Aspecial electronic sensor is embedded in the seat of a car that takes riders around a circular loop-the-loop ride at an amusement park. the sensor measures the magnitude of the normal force that the seat exerts on a rider. the loop-the-loop ride is in the vertical plane and its radius is 23 m. sitting on the seat before the ride starts, a rider is level and stationary, and the electronic sensor reads 740 n. at the top of the loop, the rider is upside down and moving, and the sensor reads 370 n. what is the speed of the rider at the top of the loop?

Which notation is used to represent an alpha particle? a. b. c. d.

Aball is thrown horizontally from a cliff at 8m/s .in what direction is the ball moving 2s later?