A ball bounces on the ground. How do the ball and the ground act on each other?(1 point) A)The ball exerts a stronger force than the ground but in the same direction.
B)The ball and the ground exert forces on each other with equal magnitude but in opposite directions.
C)The ball exerts a stronger force than the ground and in the opposite direction.
D)The ball and the ground exert forces on each other with equal magnitude and in the same direction.
2.According to Newton’s third law of motion, which statement is always correct?(1 point)
A)If a moving object hits another object, then the second object will push back.
B)If two moving objects collide, then both will stop moving.
C)If two moving objects collide, then they will move away from each other in opposite directions.
D)If a moving object hits another object, then the second object will start moving.
3.Two metal balls with the same mass hang so that they are touching each other. The ball on the left is pulled to the side and released. What will happen when it swings back and hits the ball on the right?(1 point)
A)The ball on the left will stop, and the ball on the right will remain still.
B)The ball on the right will swing to the right.
C)Both balls will swing to the left.
D)Both balls will swing to the right.

4.How do bumper cars at an amusement park demonstrate Newton’s third law?(1 point)

A)If two bumper cars collide with a certain force, then they will move away from each other in opposite directions with the same force.
B)If two bumper cars collide with a certain force, then one car will transfer its force to the other car and they will move together in the same direction.
C)If two bumper cars collide with a certain force, then they will move away from each other in opposite directions with a stronger force.
D)If two bumper cars collide with a certain force, then one car will transfer its force to the other car and they will move away from each other in opposite directions.
5.An octopus propels itself through the water by ejecting water through a funnel in its body. How does this demonstrate Newton’s third law?(1 point)
A)When the octopus ejects the water out, the water acts with an equal force on the surrounding water in the opposite direction.
B)When the octopus ejects the water out, the water acts with an equal force on the octopus in the same direction.
C)When the octopus ejects the water out, the water acts with an equal force on the surrounding water in the same direction.
D)When the octopus ejects the water out, the water acts with an equal force on the octopus in the opposite direction.

1. B

2. C

3. B

4. A

5. D

Explanation:

The set of scenarios in this question depicts the NEWTONS THIRD LAW OF MOTION, which states that when an object 1 exerts an action force on an object 2, the object 2 exerts a reaction force that is opposite but equal in magnitude on object 1.

- In question 1, a ball (object 1) bounces on the ground (object 2). According to Newton in his third law, the ball and the ground exert forces on each other with equal magnitude but in opposite directions.

- In question 2, according to Newton third law of motion described above, If two moving objects collide, then they will move away from each other in opposite directions.

- In question 3, if two metal balls with the same mass hang so that they are touching each other. When the ball on the left is pulled to the side and released, it swings back and hits the ball on the right causing the ball on the right to move to the right while that on the left to move left (opposite directions).

- In question 4, bumper cars at an amusement park demonstrate third law of Newton in such a way that if two bumper cars collide with a certain force, then they will move away from each other in opposite directions with the same force.

- In question 5, when the octopus ejects the water out, the water acts with an equal force on the octopus in the opposite direction causing the octopus to propel itself through the water. This demonstrates Newton third law of motion.

most voltage drop calculators want the distance between the source and destination. then internally, they double it so both the source and return wires are calculated. but you need to know which distance the calculator uses so you're not half of what you should be or double what you should be.

most circuit breakers will not take a #6 directly, so the electrician will have to splice on a smaller pigtail. you also have to upsize the grounding wire when you upsized the ungrounded (hot) wire (see note in 250.122). this will preclude using most cable assemblies, as a cable with #6 copper will most likely only have a #10 grounding conductor. you need a #6 grounding conductor if the circuit is 20a. a #8 cable is no better, as it will have a #10 grounding conductor too. but most 20a breakers will take a #8 directly.

in your related post, you didn't say what type of load this is. if it is a light or heater, voltage drop won't be a big issue. if this is a motor, the current needs are huge at startup and the voltage drop can pose a problem. if this is a motor, knowing if the motor is under much load during startup will answer the voltage drop effect (a saw is easier to start than a compressor).

a displacement distance is size of displ