A woman does 200 j of work on a shopping cart as she pushes it down an aisle that is 20 m long. What was magnitude of the force she applied to the cart?

10N

Explanation:

Given data

Work done = 200J

distance= 20m

We want to find the applied force

From

Work done= Force * distance

substitute

200= F*20

F= 200/20

F= 10N

Hence the force applied is 10N

compass can be used day and night, cloudy or sunny

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me