3 years ago

What is the acceleration?

Physics

1 answer:

Andrews [41]3 years ago

4 0

0.2m/s^2 is you answer because acceleration is (Vf-Vi) divided by (Tf-Ti) so it's (22-2)/(0-100) which is 0.2m/s^2

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Mechanical (sound) waves to Earth from satellites. How is this possible? aves are unable to travel through a vacuum, such as thr

Anuta_ua [19.1K]

Sound waves are not able to travel in a vacuum, sound requires a medium such as air or a solid for example. Satellites are indeed in space, but radio waves are not sound waves they are a form of light. Light can travel in a vacuum so the messages that satellites beam back to Earth are light waves not sound waves, that is why it is possible.

6 0

3 years ago

There are two main groups of recyclable material,

Illusion [34]

Answer:Paper and plastic!

Explanation:

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3 years ago

Why do atoms do group 1 element lose electrons to form cations

Mrac [35]

Answer:

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Explanation:

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3 years ago

Two objects must be in contact for them to exert a force on each other. <br><br> True<br> False

Irina-Kira [14]

Answer:

False

Explanation:

The given statement "Two objects must be in contact for them to exert a force on each other" is not true as there are many types of forces that doesn't require being in contact for exerting a force.

One such example is the gravitational force acting between two bodies. Gravitational force is the force of pull with which a body pulls another body without being in contact.

For two bodies of masses 'M' and 'm' separated at a distance of 'R', the gravitational force is given as:

$Force=\frac{GMm}{R^2}\\Where,G\to \textrm{Universal Gravitational constant}$

The gravitational force acts always act between bodies that have mass. The bodies are not in contact yet experience force.

Therefore, the given statement is false.

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4 years ago

A trough is filled with a liquid of density 860 kg/m3. The ends of the trough are equilateral triangles with sides 14 m long and

7nadin3 [17]

Answer:

2.89 x 10^6 N

Explanation:

The explanation is shown in the picture attached

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3 years ago