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vova2212 [387]
3 years ago
11

Gravitational energy can be negative?

Physics
1 answer:
AlladinOne [14]3 years ago
6 0

answer:

yes

explanation:

At a separation of the surface of Earth (r=6400km) gravity wants pull the test mass closer and closer. ... So the work done by gravity is NEGATIVE. The gravitational potential energy is negative because us trying to do the opposite of what gravity wants needs positive energy.

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The solid has a mass of 180 g. What is the density of the solid? Show your work. Be sure to use correct units of measurement. HE
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Answer:

1.2 g/cm³

Explanation:

From the question given above, the following data were obtained:

Mass of solid = 180 g

Length (L) of solid = 10 cm

Width (W) of solid = 5 cm

Height (H) of solid = 3 cm

Density of solid =?

Next, we shall determine the volume of the solid. This can be obtained as follow:

Length (L) of solid = 10 cm

Width (W) of solid = 5 cm

Height (H) of solid = 3 cm

Volume (V) of solid =?

V = L× W × H

V = 10 × 5 × 3

V = 150 cm³

Finally, we shall determine the density of the solid. This can be obtained as follow:

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Volume of solid = 150 cm³

Density of solid =?

Density = mass / volume

Density = 180 g / 150 cm³

Density of solid = 1.2 g/cm³

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