Mohammed listed the steps that occur when a solar cell generates electricity.
1: Solar energy is absorbed by the cell.
2: Free electrons move to the front of the cell.
3: Electrons begin to move.
4: Electrons flow as electricity.
Which best explains how to correct Mohammed's error?
Switch steps 2 and 3.
Switch steps 3 and 4.
Move step 1 to appear after step 4.
Move step 4 to appear after step 1.

Thomas his older brothers, who own a junk yard, on the weekends to earn extra money. he likes to them push broken-down cars to the back of the junk yard because it makes him feel strong. last saturday, they pushed three cars with different weights, and he noticed he used different amounts of force for each one. the cars were the following weights: white car: 2,700 kg red car: 1,500 kg blue car: 2,100 kg think about how much force is needed to move each car. which correctly lists the cars in order from the most to least amount of force needed to move them? a) white, blue, red b) blue, red, white c) red, white, blue d) white, red, blue

What properties of a moving object are used in determining the object's energy of motion

Aball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. if the ball hits the floor with a speed of 2.40 m/s and rebounds with a speed of 1.70 m/s, determine the following. (a) magnitude of the change in the ball's momentum (let up be in the positive direction.)