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tamaranim1 [39]
3 years ago
14

Which type of wave needs a medium to travel?

Physics
2 answers:
aev [14]3 years ago
7 0

what's the doubt?

u already gave the answer

Kazeer [188]3 years ago
4 0

Answer:

Mechanical Waves

Why I Know:

Science Class

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How does the gravitational force between two objects change if the distance between the objects doubles?
Ymorist [56]

if the distance between the objects is doubled the force is reduced by a factor of 4

<h3>Whats is gravitational force?</h3>

Gravitational force is the force of attraction between objects in the universe.

f = G * m1 * m2 / r^2

f = gravitational force

G = gravitational constant

m1 = mass of object 1

m2 = mass of object 2

r = distance between the objects

From the formular, the gravitational force and the distance is an inverse relationship so increasing the distance by a factor results to reduction of the force by the square of the factor. hence doubling the distance which is distance mutiplied by 2 will lead to reduction of the force by 2^2 = 4

Therefore: The force decreases by a factor of 4.

hope it helps

4 0
2 years ago
In the design of an optical fibre, what
MakcuM [25]

Answer:

silica glass

Explanation:

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2 years ago
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The vector quantity that defines the distance and direction between two positions. It is a change in your position.
lilavasa [31]

I believe you're talking about displacement. It's a directional vector that depicts the movement of a point between two instances.

4 0
2 years ago
An elephant's legs have a reasonably uniform cross section from top to bottom, and they are quite long, pivoting high on the ani
xz_007 [3.2K]

Answer:

is this the full question?

Explanation:

8 0
2 years ago
What will be the ME of a machine that produces a 240 N work with a 300
Elden [556K]

Answer:

Efficiency = 80%

Explanation:

Given the following data;

Work output = 240 N

Work Input = 300 N

To find the mechanical efficiency of a machine;

Efficiency = \frac {Out-put \; work}{In-put \; work} * 100

Substituting into the equation, we have;

Efficiency = \frac {240}{300} * 100

Efficiency = 0.8 * 100

Efficiency = 80%

Therefore, the mechanical efficiency of the machine is 80 percent.

3 0
2 years ago
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