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3 years ago

First answer will be made brainliest

Physics

1 answer:

barxatty [35]3 years ago

3 0

Answer:

1.75 is the unit rate so yeah

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Two beams of coherent light are shining on the same sheet of white paper. when referring to the crests and troughs of such waves

tensa zangetsu [6.8K]

Middle of the paper

5 0

4 years ago

Help please

pav-90 [236]

Air is a mixture.

as per definition, mixture is a combination we get after adding two or more things together in any proportion.

air is a mixture because it contains a number of gases like nitrogen , oxygen, carbon dioxide. it also contains dust particles, small organisms, water vapors etc.

carbon monoxide is not a mixture as it is formed from fixed proportion of carbon and oxygen.

similarly, water is is not a mixture as it is formed from fixed proportion of hydrogen and oxygen.

8 0

3 years ago

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Satellite A orbits a planet at a distance d from the planet’s center with a centripetal acceleration a0. A second identical sate

leva [86]

To solve this problem it is necessary to use the concepts related to the Gravitational Force and Newton's Second Law, as far as we know:

$F_g = \frac{GMm}{r^2}$

Where,

G = Gravitational constant

M = Mass of earth (in this case)

m = mass of satellite

r = radius

In the other hand we have the second's newton law:

$F = ma$

Where,

m = mass

a = acceleration

Equation both equations we have,

$ma = \frac{GMm}{r^2}$

For the problem we have that,

<em>Satellite A:</em>

$ma_A = \frac{GMm}{r^2}$

<em>Satellite B:</em>

$ma_B = \frac{GMm}{(2r)^2}$

The ratio between the two satellites would be,

$\frac{ma_A}{ma_B}= \frac{\frac{GMm}{r^2}}{\frac{GMm}{(2r)^2}}$

Solving for a_B,

$a_B = \frac{a_A}{4}$

Therefore the centripetal acceleration of $A_B$ is a quarter of $a_A$

7 0

3 years ago

A 1500 kg car travels 50 m north in 20 seconds. What is the magnitude of the average velocity of the car during the 20 second in

aliina [53]

Answer:

a. 2.5 m/s

Explanation:

50 / 20 = 2.5 m/s

7 0

3 years ago

What is this question

tester [92]

Answer:

nopeeeeeeeeee. false

5 0

4 years ago

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