3 years ago

If your

Physics

2 answers:

Oxana [17]3 years ago

4 0

What are you asking?

tamaranim1 [39]3 years ago

3 0

This answer is a because if you prepare earlier for good health it will help you stay healthier

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What is the mass of an object if a net force of 18 N causes it to accelerate at 15 m/s^2?

trasher [3.6K]

Answer:

1.2 kg

Explanation:

F = 18N

a = 15 m/s^2

F = ma

18 = 15m

m = 1.2 kg

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3 years ago

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The mass of earth 6*10^24kg its radius is 6.4*10^3km now calculate due to gravity on earth<br>

irga5000 [103]

Answer:

Explanation:

in your textbook, they have a formula like this:

g=mass of earth*G/R^2

G=6.67*10^-11

apply to this

we have g=6*10^2*4*6.67*10^-11/(6.4*10^3*1000)^2=9.78

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2 years ago

Astronomers have proposed the existence of an unexplained force that is causing the expansion of the universe to accelerate. Wha

irakobra [83]

The answer to your question would be D. Dark Energy

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3 years ago

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You have a friend who is entering a skateboarding competition in Los Angeles. She wants to take a running start and then jump on

ahrayia [7]

Answer

given,

mass skateboard = 5 Kg

length on the horizontal road = 2 m

maximum speed she can run= 8 m/s

mass of girl = 50 Kg

conservation of momentum

M V = (M+m)v

50 x 8 = (50 + 5)v

400 = (55)v

v = 7.27 m/s

using conservation of momentum

$m g h = \dfrac{1}{2} m v^2$

$h = \dfrac{v^2}{2g}$

$h = \dfrac{7.27^2}{2\times 9.8}$

h = 2.69 m

no, she will not be able to reach the height of 3 m

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3 years ago

Which law states that there is a relationship between force, mass, and acceleration?

inysia [295]

<span>Force is mass times acceleration, or F= m x a. This means an object with a larger mass needs a stronger force to be moved along at the same acceleration as an object with a small mass. </span>

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3 years ago

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