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Aleonysh [2.5K]
3 years ago
7

in an experiment performed in a space station a force of 6 n causes an object to have an acceleration equal to 4 m / S2 II what

is the object's Mass
Physics
1 answer:
spayn [35]3 years ago
8 0

F = m A

m = F / A

m = 6N / 4m/s^2

m = 1.5 kg

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Determine the gravitational potential energy, in kJ, of 3 m3 of liquid water at an elevation of 40 m above the surface of Earth.
melomori [17]

Explanation:

We will calculate the gravitational potential energy as follows.

                 P.E_{1} = mgz_{1}

       P.E_{1} = (\rho V)gz_{1}    

                    = 1000 kg/m^{3} \times 3 m^{3} \times 9.7 \times 40 m

                    = 1164000 J

or,                = 1164 kJ         (as 1 kJ = 1000 J)

Now, we will calculate the change in potential energy as follows.

             \Delta P.E = mg(z_{2} - z_{1})

                         = \rho \times V \times g (z_{2} - z_{1})

                         = 1000 \times 3 \times 9.7 (10 - 40)m

                         = -873000 J

or,                      = -873 kJ

Thus, we can conclude that change in  gravitational potential energy is -873 kJ.

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Visible light with a wavelength of 480 nm appears Question 33 options:
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Explanation:

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8 0
3 years ago
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