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umka2103 [35]
3 years ago
13

PLZ HELP!!I WILL MAKE YOUR ANSWER BRAINLIEST!!!!!

Physics
1 answer:
sergeinik [125]3 years ago
3 0
The first is true because of the first option and lemme check in the second question
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An echo is heard from a building 0.4 s after you shout "hello." How many feet away is
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Explanation:

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A box is sliding up an inclined plane with friction, and it is speeding up.What free-body diagrams matches this description?
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Answer: photo

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A 0.250 kg fan cart accelerates at 24 cm/ s^2 for 4.5 seconds. what is the net force (fan thrust minus drag and friction) on the
Norma-Jean [14]

Answer:

0.06 N

1.08 m/s

Explanation:

m = mass of the fan cart = 0.250 kg

a = acceleration of the fan cart = 24 cm/s² = 0.24 m/s²

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Net force on the cart is given as

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6 0
3 years ago
what will happen when two wave pulses that are the same size approach one another from opposite directions?
xenn [34]
When two or more waves meet, they interact with each other. The interaction of waves with other waves is called wave interference. Wave interference may occur when two waves that are traveling in opposite directions meet. The two waves pass through each other, and this affects their amplitude.
5 0
3 years ago
A 52 N sled is pulled across a cement sidewalk at constant speed. A horizontal force of 36 N is exerted. What is the coefficient
Andre45 [30]

Answer:

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Explanation:

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Attached is an image with the respective forces:

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Since the body moves at a constant speed, there is no acceleration so the sum of forces on the X-axis must be equal to zero.

The frictional force is defined as the product of the coefficient of friction by the normal force. In this way, we can calculate the coefficient of friction.

The process of solving this problem can be seen in the attached image.

5 0
3 years ago
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