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3 years ago

How can you decrease the momentum of an object?

2 answers:

7 0

You will have to "put force against the object to slow it down." Momentum is the force that is keeping a object moving in a certain direction so if you would want to slow down the object you will have to put another force against the object to slow it down or stop it. For example: a person kicks a ball, the ball moving is the momentum. So, if you would want to stop the ball you would have t put something in its path to slow it down which is the decreasing of it's momentum. Therefore you would put a bump in the wall and when the ball hits the bump it slows down.

Hope this helps!

boyakko [2]3 years ago

6 0

The momentum of an object is the product of (its mass)
and (its velocity). So, if you want to decrease the object's
momentum, then you're going to have to decrease one of
those quantities.

You have exactly two choices:

1). Reduce its mass. (Put the object on a diet, or cut a piece off.)
or
2). Reduce its speed.

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If $1,800 is invested in a savings account offering interest at a rate of 4.5% per year, compounded continuously, how fast is th

Archy [21]

Answer:

The total amount after 3 years is = $ 2054.10

Explanation:

Given data

Principal Amount (P) = $ 1800

Rate of interest (R) = 4.5 %

Thus the total amount after 3 years compounded annually is given by the formula = P × $[1 +\frac{R}{100} ]^{3}$

⇒ 1800 × $[1 +\frac{4.5}{100} ]^{3}$

⇒ 2054.10

Thus the total amount after 3 years is = $ 2054.10

Compound interest earned in three years = 2054.10 - 1800 = $ 254.10

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3 years ago

A viscous liquid is sheared between two parallel disks of radius �, one of which rotates with angular speed Ω, while the other i

Alexus [3.1K]

Answer:

Upper disk rotates at a constant angular velocity. The velocity at any height from stationery disk, say at x metres

$U_o=v(\frac {x}{h})$ where v is tangential velocity at radius r from the centre of disk

$U_o=r\omega (\frac {x}{h})$

The radial component of velocity is given as

$U_r=0$

The z component of velocity is also given as

W=0

Total velocity, $v= r\omega (\frac {x}{h})\hat e_{o}$

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3 years ago

Explain how energy balance sets planetary temperature? Imagine a planet colder than expected for energy balance and explain why

RUDIKE [14]

The planetary temperature energy balance is obtained by radiating back the absorbed radiation energy from outer-space, by the planet and thus acquiring thermal equilibrium.

What is the process of attaining thermal equilibrium by Earth?

The Stefan-Boltzmann law states that the more the temperature a planet has, the more it will radiate out to reach thermal equilibrium.

We know that outer space contains large masses of radiative energy freely distributed in its vast expanse. A small fraction of this energy is absorbed by the Earth through the atmosphere, surface land, clouds etc.

Now, radiative balance is achieved when a planet's surface continuously warms up until it reaches its peak at which point the same amount of absorbed energy can then be radiated back to space. The relative amount of energy radiated back by a planet is dependent upon the size of the planet.

A colder planet relatively absorbs lower amount of radiation energy from space. In some time, as the planet heats up enough, the energy is radiated back to the space attaining thermal equilibrium.

Learn more about Stefan-Boltzmann law here:

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1 year ago

How can I make the atomic model of boron?

zloy xaker [14]

This should help

there always needs to be 2 electrons in the first shell then 8 electrons in each shell and continue till you not have any more number of electron left

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3 years ago

Work is a transfer of (1 point) energy. force. mass. motion.

jok3333 [9.3K]

Energy is the ability to do work.

So work can not be done without the transfer of energy from one body to another.

Work is the transfer of energy.

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3 years ago

Read 2 more answers