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Anvisha [2.4K]
3 years ago
11

Which two statements are true of mechanical waves?

Physics
2 answers:
Elena L [17]3 years ago
6 0

Answer:it’s b and c for ape.x

Explanation:

Degger [83]3 years ago
5 0

Answer:

c) is the right answer.......

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Which of the following depend upon the amount of matter in an object?
Finger [1]

The answer is c. The amount of matter in an object is the concentration of the atoms inside. This can also be called density. Weight depends on density because weight = \frac{mass}{volume}.

8 0
3 years ago
Two masses are attracted by a gravitational force of 7 N.
damaskus [11]

Answer:

The answer to your question is: F  = 0.4375 N. The force will be 16 times lower than with the first conditions.

Explanation:

Data

F = 7 N

F = ?  if the masses is quartered

Formula

F = \frac{Km1m2}{r2}

Process

Normal conditions F = Km₁m₂/r²  = 7              

When masses quartered        F = K(m₁/4)(m₂/4)/r²  = ?

                                                F = K(m₁m₂/16)/r²

                                                F = K(m₁m₂/16r²      = 7/16  = 0.4375 N

3 0
3 years ago
Aray diagram is shown.<br> What does the letter red line represent?
Fiesta28 [93]

Answer:

Red line is reflected ray.

Explanation:

According to the given figure, the blue line represent the incident ray. It strikes the surface and reflection occurs. The dotted line shows normal.

After reflecting the surface, the ray of light is reflected. Red line shows the reflected light.

In this case, the laws of reflection follows i.e. the angle of incidence is equal to the angle of reflection.

4 0
3 years ago
How can a small human retina detect objects larger than itself?
muminat

The correct answer would be A) the lenses of the eye change the size of images

5 0
3 years ago
Which of the following properties of materials does NOT affect resistance?
Shalnov [3]

Answer:

B thickness

Explanation:

thickness

4 0
3 years ago
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