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Vlad [161]
3 years ago
11

An energetic child runs forward and backward. It's motion is shown on the following graph of horizontal position x vs time t

Physics
1 answer:
Klio2033 [76]3 years ago
6 0

Answer: 0.50 m/s

Explanation: it’s on khan academy this was the correct answer

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Describe the relationship between input force, output force,<br>and load force.​
g100num [7]

Answer: the relationship between the input force and output force is that, Input Force represents the amount of force that you put into another object (which is considered as the load force) while Output Force represents the force that a specific object has as a result of the input force.

Explanation:

Using a lever as an example, a broom is a lever used to sweep floors, the input force is applied by one of the arm used in sweeping, while the output force is on the other edge of the broom (broom tip)

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3 years ago
Force = mass x acceleration
zloy xaker [14]
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4 years ago
Describe an object that emits radiation in Astronomy
DochEvi [55]

Answer:

the sun

Explanation:

the sun emits all types of electromagnetic radiation but a vast majority of it comes in the for of in the for of visible light ultraviolet rays and infrarays

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3 years ago
Which of the following is a contact force?
3241004551 [841]

Answer:

b friction

Explanation:

Contact forces

Contact forces are forces that act between two objects that are physically touching each other. Examples of contact forces include:

Reaction force

An object at rest on a surface experiences reaction force. For example, a book on a table.

A box rests on a table. There are two arrows, equal in size but going in opposite directions, up and down, from the point where the box meets the table.

Tension

An object that is being stretched experiences a tension force. For example, a cable holding a ceiling lamp.

A box hangs from a rope. Two arrows which are equal in size act upwards and dowards from the top and bottom of the rope.

Friction

Two objects sliding past each other experience friction forces. For example, a box sliding down a slope.

A box rests on an incline. There are three arrows; one acting vertically downwards from the centre of the box’s base. One arrow acts perpendicular to the incline. One arrow acts up the incline.

Air resistance

An object moving through the air experiences air resistance. For example, a skydiver falling through the air.

A box falls from the sky. Two arrows, equal in size and opposite in direction act upwards from the box and downwards from the box

When a contact force acts between two objects, both objects experience the same size force, but in opposite directions. This is Newton's Third Law of Motion.

3 0
3 years ago
In our new car, we were able to drive 30 miles in a half an hour. From this information, we can determine the car's
Ronch [10]
Average speed.
(Not velocity.)
5 0
3 years ago
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