Chemistry Middle School

2. Calculate the following net forces.
a. Two people push a couch across a room. One pushes with 30 N. The other pushes with 50 N.
b. An uncle plays tug-of-war with his niece and nephew. The uncle pulls one side of the rope with a force of 95 N. The niece and nephew pull the other side of the rope with a force of 40 N and 45 N.
c. Two friends push their friend on a swing with a combined force of 15 N and 20 N.
Text to speech

Answers

Answer 1

Answer:

A. The net force is 80 N.

B. The net force is 10 N going more towards the Uncle than the children.

C. The net force is 35 N.

Explanation:

Net force is the sum of the amount of force on either one side (addition) or two sides (subtraction).

Answer 2

Force is an external agent which is responsible for changing a body's state of rest or motion. It is the push or pull on an object. The net forces acting on the body are 80 N, 10 N and 35 N.

What is a net force?

The sum of all the forces acting on an object is defined as the net force. The net force is able to accelerate a mass. The net force is known as a term which is used in a system when there is a significant number of forces.

When we apply a force on a body, apart from the applied force, there are many other forces acting like gravitational force, frictional force and the normal force.

The net force acting on a body is given as:

Fnet = F₁ + F₂ + F₃ + .....Fₙ

a. Fnet = 50 + 30 = 80 N

b. Fnet = 95 - (40 + 45) = 10 N

c.  Fnet = 20 + 15 = 35 N

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Answers

Answer:

Period

Explanation:

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I need this ASAP! Thank you!

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Answer:

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Explanation:

You look at it straight and at the lowest point the liquid fills to.

35 would be your answer each line is one and it starts at 30 and only goes up 5 so it would be 30

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Answers

Answer:

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Explanation:

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Answers

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Answer:

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MATCH THEM TOGETHER 4. diffraction 5. interference 6. constructive interference 7. destructive interference 8. standing wave 9. resonance a. interaction of two waves that results in a wave with a larger amplitude b. a wave that appears to stay in one place c. increase in amplitude that occurs when external vibrations match an object’s own natural frequency d. interaction of two waves that results in a wave with a smaller amplitude e. the bending and spreading out of waves around the edge of a barrier f. interaction between two waves that meet

Answers

Answer:

Explanation:

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