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valina [46]
3 years ago
5

Helpppp meeeee!!! Please ​

Physics
1 answer:
PolarNik [594]3 years ago
5 0

Answer:

The correct answer is D. This is given by the law which states that angle of incidence = angle of reflection. Since normal line and mirror always form 90°, after subtracting 40° from 90°, 50° is left. Thus D is the correct answer.

pls give brainliest for the answer

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The object experiences two external forces: 60 N to the west and 130 N to the east. What is the net external force?
MArishka [77]

Answer: 70 N to the East

Explanation:

lets assume east is positive and west is negative, since they are in opposite directions the net external force = F1+F2

Net force = (-60) + 130

Net force = 70

or

Net force = 70 N in the east direction

4 0
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3 years ago
Suppose a scientist made this model.what info did the scientist need to know in order to make the model
Airida [17]

Suppose I wanted to answer this question about the model.
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4 0
4 years ago
1. Two magnets are placed on a table, and they immediately move to attach to each other. Which statement is correct about the en
erma4kov [3.2K]

Answer: 1: kinetic energy and velocity are at zero when the magnets are held apart, and both increases rapidly when they are released and move together. Energy stored in the magnetic field decreases.

2: The energy stored in the system is converted to kinetic, thermal, and sound energy.

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Just took the quiz all are correct! I hope this helps you! :)

3 0
3 years ago
What is happening to the energy in the ice and snow as it is melting?
klio [65]
Answer:
all the heat energy goes into breaking the bonds of the ice's crystal lattice structure.


Explanation:
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7 0
3 years ago
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