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2 years ago

Need help with this physics problem!! 30 points if done!!!

Physics

2 answers:

Goryan [66]2 years ago

4 0

Answer:

40° 70° 8

Explanation:

Kryger [21]2 years ago

3 0

Hello!

For an object sliding down an inclined plane, there are two forces working on the object: The normal force and the force due to gravity.

Breaking the force due to gravity into its components, we get a force of:

Mgsinθ, parallel to the incline's slope. This is the NET force acting on the object, causing it to accelerate.

Since ∑F = m · a:

Mgsinθ = m · a

Divide by the mass:

a = gsinθ

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In a physics experiment, a ball is released from rest, and it falls toward the ground. The timer was not paying attention but es

tigry1 [53]

Answer:

(A) –14m/s

(B) –42.0m

Explanation:

The complete solution can be found in the attachment below.

This involves the knowledge of motion under the action of gravity.

Check below for the full solution to the problem.

4 0

3 years ago

What happens to light when it changes speed?

Brut [27]

Hey there!

When light changes speed, it REFRACTS.
Your answer is going to be option C.

Hope this helps you.
Have a great day!

5 0

2 years ago

A string of length 100 cm is held fixed at both ends and vibrates in a standing wave pattern. The wavelengths of the constituent

azamat

The wavelengths of the constituent travelling waves CANNOT be 400 cm.

The given parameters:

<em>Length of the string, L = 100 cm</em>

<em />

The wavelengths of the constituent travelling waves is calculated as follows;

$L = \frac{n \lambda}{2} \\\\n\lambda = 2L\\\\\lambda = \frac{2L}{n}$

for first mode: n = 1

$\lambda = \frac{2\times 100 \ cm}{1} \\\\\lambda = 200 \ cm$

for second mode: n = 2

$\lambda = \frac{2L}{2} = L = 100 \ cm$

For the third mode: n = 3

$\lambda = \frac{2L}{3} \\\\\lambda = \frac{2 \times 100}{3} = 67 \ cm$

For fourth mode: n = 4

$\lambda = \frac{2L}{4} \\\\\lambda = \frac{2 \times 100}{4} = 50 \ cm$

Thus, we can conclude that, the wavelengths of the constituent travelling waves CANNOT be 400 cm.

The complete question is below:

A string of length 100 cm is held fixed at both ends and vibrates in a standing wave pattern. The wavelengths of the constituent travelling waves CANNOT be:

A. 400 cm

B. 200 cm

C. 100 cm

D. 67 cm

E. 50 cm

Learn more about wavelengths of travelling waves here: brainly.com/question/19249186

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2 years ago

What do refrigerators and air conditioners use to move heat?

Aleksandr [31]

your answer is Freon

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3 years ago

Read 2 more answers

Which of the following is not used in calculating acceleration?

Leno4ka [110]

Answer:

l think C am not pretty show

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2 years ago