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beks73 [17]
3 years ago
9

What is sound? Please answer

Physics
1 answer:
NikAS [45]3 years ago
7 0
Sound is a vibration that propagates as a typical audible mechanical wave pressure and displacement through a medium such as air or water
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A spinning top rotates so that its edge turns at a constant speed of 0.63 m/s. If the top has a radius of 0.10 m, what is the
olchik [2.2K]

Answer:

The  centripetal acceleration of the edge of the top 6.3m/s^2

Explanation:

Given:

Speed with which the top rotates =  0.63 m/s

Radius of the top = 0.10 m

To Find:

Centripetal acceleration of the edge of the top =?

Solution:

The centripetal acceleration is the rate at which the tangential velocity changes. Also its direction is always inwards along the radius vector of the circular motion.

We know that centripetal acceleration is

a_c = \frac{v^2}{r}

Where

v = velocity

r = radius

Substituting the values

a_c = \frac{0.63}{0.10}

a_c = 6.3m/s^2

4 0
4 years ago
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A bulldozer does a work of 50,000
puteri [66]

Answer:

Force applied by bull dozer is 3333.33 joules.

Explanation:

3 0
3 years ago
A runner with a mass of 80kg accelerates from 0 to 9 m/s in 3 s find the net force
frosja888 [35]
So, first you find your acceleration which is 3m/s^2, using the acceleration formula.
Now set up your equation, F=ma, so put in the stuff, F=80kg·3m/s^2. Then solve your equation by multiplying, and you get F=240N, since newtons are your measurement.
Hope this helps
4 0
4 years ago
Example of electrical to mechanical​
Sonja [21]

Answer:

dynamo generator could be the right ans

6 0
3 years ago
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Identify the statment below that could be an example of properly written long-term goal
Alex Ar [27]

<u>Option (d)</u>

<u>Explanation:</u>

The statement that could be an example of properly written long-term goal is  Each week I am going to add .25 miles onto my run so i can reach a total of 5 miles by the end of this month.

It is corresponding to long term portrayed by the statement is, every week if the student is targeting for a goal and aims to complete 0.25 miles on his long run, by the end of the 4th week of the month, he would have achieved 5 miles of his long term target.

8 0
3 years ago
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