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Mrrafil [7]
3 years ago
14

What happens to the momentum of an object when velocity is kept the same and the mass is increased?

Physics
1 answer:
Jet001 [13]3 years ago
6 0
Momentum = mass x velocity so if velocity is kept same and mass is increased then momentum will increase.
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A 0.400-kg object is swung in a circular path and in a vertical plane on a 0.500-m-length string. If the angular speed at the bo
Talja [164]

Answer:

T = 16.72 N

Explanation:

When the object is swung in a circular path, and in a vertical plane, there are two forces external to the object acting on it at any time: the gravity (which is always downward) and the tension in the string (which always points towards the center of the circle).

At the bottom of the circle, the tension is directly upward, so these two forces, are opposite each other, and the difference between them is the centripetal force , which at this point, keeps the object swinging in a circle.

This is the point of the trajectory where T is maximum.

We can apply Newton's 2nd Law, choosing an axis vertical (y-axis) being the upward direction the positive one, as follows:

T- m*g = m*a

The acceleration, at the bottom of the circle, is only normal (as there are no forces in the horizontal direction) , and is equal to the centripetal acceleration, as follows:

ac =  v² / r = ω²*r⇒ T- m*g = m*ω²*r

Replacing by the givens, we can solve for T as follows:

T = m* (ω²*r+g) = 0.4 kg*((8.00)² rad/sec²*0.5m)+9.8 m/s²) = 16.72 N

5 0
3 years ago
PLEASE HELP !!!
elixir [45]

Answer:

A

Explanation:

The answer is A because proton number is the same as atomic number

8 0
3 years ago
Which statement is true of a piece of ice at 0°C that is put into a freezer at<br> -18°C?
butalik [34]

The statement which is true about a piece of ice at 0°C which is put into a freezer at -18°C is it having the temperature of the freezer.

<h3>What is Temperature?</h3>

This is referred to the degree of hotness or coldness of a body and the unit is Celsius or Kelvin.

The ice at 0°C will experience a change in temperature of the freezer when put in it in this scenario.

Read more about Ice here brainly.com/question/2267329

#SPJ1

3 0
1 year ago
A British newspaper was interested in whether groups of people who differed in social standing were treated differently when the
fiasKO [112]

Answer:

That there should be no distinction between a person of certain social standing than another form a different one. They all should be treated the same.

Explanation:

Unfortunately, this experiment showed the reality of today´s society: that eventhough racism, social distiction, bullying, is seen as wrong, it is still happening.

Social standing is very important in the bussiness world and service facilities. People still treat better some community or type of person because they think they are "better" for having something or its believes, it´s in their culture.

In this example, the priest had better service because society thinks that people church-related are better because of their values, type of life, etc.

However, the type of life some people have won´t have to matter when a service is provided. All arethe same.

6 0
3 years ago
For a conclusion to be accepted by the scientific community, the data must be accurate, free from error, and
Setler79 [48]
The data must be reproducible: it means that the data will be reliable and representative and not that this data would lead to one conclusion and another data would lead to another.

Data being varied, unique or surprising does not have anything to do with acceptability of the conclusion.
8 0
3 years ago
Read 2 more answers
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