This diagram shows the magnetic field lines near the ends of two magnets. There is an error in the diagram. Which change will correct the error in the diagram? 1) changing the N to S

2)reversing the arrows on the left to point toward the N

3)changing the S to N

4)reversing the arrows on the right to point toward the S

Acar travels 40m in 8 seconds find the car speed

10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation 2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!

Amass weighing 24 pounds, attached to the end of a spring, stretches it 4 inches. initially, the mass is released from rest from a point 8 inches below the equilibrium position. find the equation of motion. (use g = 32 ft/s2 for the acceleration due to gravity.)