The B) the white powder is a combination of magnesium and something in the air option best explains where the white powder came from. The thin ribbon of magnesium creates energy and magnesium oxide when it burned in the air and the white powder stated above is the magnesium oxide. This reaction is an example of exothermic reaction
Newton's Third Law is every action has an equal and opposite reaction.
B. 200 N Backwards is the correct answer
The ball should put 200 N of force towards the golfer.
The ball is exerting 200 N of force towards the club as well, but the opposite reaction is that it flies away.
For more details: For each reaction there must be a opposite reaction(Which is the ball going 200 N backwards) and an equal reaction(The ball putting 200 N of force towards the golfer and the golfer)
Answer:
DMM should be placed in the series combination with the circuit.
Explanation:
DMM is the digital multi meter. It can measure the voltage, current and resistance at a time.
- While measuring the current with the DMM you must be ensure that the DMM should be connected with the circuit in series combination. So that it will give the resultant current accurately.
- While measuring the voltage the observer should check the open probes.
Answer: The electrostatic force will be the same
Explanation:
According to Coulomb's Law, when two electrically charged bodies come closer, appears a force that attracts or repels them, depending on the sign of the charges of this two bodies or particles.
In this sense, this law states the following:
"The electrostatic force 
between two point charges 
and 
is proportional to the product of the charges and inversely proportional to the square of the distance 
that separates them, and has the direction of the line that joins them"
(1)
Being 
is a proportionality constant.
Now, if each and are increased by 6, and the distance between them as well, we will have the following:
(2)
(3)
Simplifying:
(4)
Comparing (1) with (4) we can see the electrostatic force is the same.
