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4 years ago

True or false. Motion is a change in direction. If false change direction to a word that makes it true

Physics

1 answer:

Mice21 [21]4 years ago

5 0

False. Motion can be in just one direction (like forward, backward, etc).

Motion is a change in position.

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The Earth’s orbit around the sun is approximately circular. What is the direction of the net force on the Earth?

Y_Kistochka [10]

Answer:

A) Towards the sun

Explanation:

The net force is the force of gravity between the Earth and the sun. This force pulls the Earth towards the sun.

6 0

4 years ago

3–101 It is estimated that 90 percent of an iceberg’s volume is below the surface, while only 10 percent is visible above the su

Artist 52 [7]

Answer:

The density of iceberg upper water and under water are 102.5 kg/m³ and 922.5 kg/m³

Explanation:

Given that,

Volume of seawater = 90 % of Volume of iceberg

Volume of visible surface = 10 %

Density of seawater = 1025 kg/m³

We need to calculate the density of the iceberg

Using equilibrium condition

$W_{I}=F_{B}$

$\rho_{I}\times V_{I}\times g= \rho_{w}\timesV_{w}\times g$

Put the value into the formula

$\rho_{I}\times V_{I}\times g=\rho_{w}\times0.9V_{I}\times g$

$\rho_{I}=1025\times0.9$

$\rho_{I}=922.5kg/m^3$

We need to calculate the density of the iceberg

Using equilibrium condition

$W_{I}=F_{B}$

$\rho_{I}\times V_{I}\times g= \rho_{w}\timesV_{w}\times g$

Put the value into the formula

$\rho_{I}\times V_{I}\times g=\rho_{w}\times0.1V_{I}\times g$

$\rho_{I}=1025\times0.1$

$\rho_{I}=102.5\ kg/m^3$

Hence, The density of iceberg upper water and under water are 102.5 kg/m³ and 922.5 kg/m³

5 0

3 years ago

Does the vertical or horizontal position affect an objects potential energy?

son4ous [18]

Yes. If an object would be vertical, it would most likely have potential energy due to gravity.

6 0

3 years ago

Answer fast, please.

Tpy6a [65]

D bomb b j de violence

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3 years ago

What outside force slows down a parachute?

WINSTONCH [101]

Air resistance force

8 0

4 years ago