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3 years ago

A force of attraction that exists between any two objects is _______. (1 point)

1 answer:

4 0

The answer is Gravity

There's always a gravity between any 2 objects in this universe. between you and your computer, between you and the floor, between your chair and your table, etc.

We just dont feel it because we live in earth which negates all of those gravities with its own.

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A skater extends her arms, holding a 2 kg mass in each hand. She is rotating about a vertical axis at a given rate. She brings h

Usimov [2.4K]

Explanation:

It is known that relation between torque and angular acceleration is as follows.

$\tau = I \times \alpha$

and, I = $\sum mr^{2}$

So, $I_{1} = 2 kg \times (1 m)^{2} + 2 kg \times (1 m)^{2}$

= 4 $kg m^{2}$

$\tau_{1} = 4 kg m^{2} \times \alpha_{1}$

$\tau_{2} = I_{2} \alpha_{2}$

So, $I_{2} = 2 kg \times (0.5 m)^{2} + 2 kg \times (0.5 m)^{2}$

= 1 $kg m^{2}$

as $\tau_{2} = I_{2} \alpha_{2}$

= $1 kg m^{2} \times \alpha_{2}$

Hence, $\tau_{1} = \tau_{2}$

$4 \alpha_{1} = \alpha_{2}$

$\alpha_{1} = \frac{1}{4} \alpha_{2}$

Thus, we can conclude that the new rotation is $\frac{1}{4}$ times that of the first rotation rate.

8 0

3 years ago

Explain how we can deduce the temperature of a star by determining its color.

ValentinkaMS [17]

Answer: Stars are bright and have the ability to emit lights of various wavelength. The color of a star plays a significant role. It helps us in determining its temperature. It ranges from reddish color to a bluish-white color. A red color star indicates that the star is of low temperature, whereas a bluish-white star indicates that the star is of high temperature.

7 0

3 years ago

A __________is a large cool star located in the top right of the HR diagram.

crimeas [40]

Answer:

Vermeer star is located at the top of large Venus

5 0

2 years ago

Does light have a shadow?

NeX [460]

Answer:

light itself doesn't have a shadow

Explanation:

light emits light to where things around the light may create the shadows

5 0

2 years ago

Read 2 more answers

I need help on US history portfolio but before you help me...

alex41 [277]

Answer:

1. They believed the British were treating the colonists unfairly.

2. The British passed many tax laws that impacted the colonists.

3. The King of England wanted to tax the Colonists without giving them representation in British parliament.

4. The Colonists decided they wanted a better and stronger government, one that would listen to them.

6 0

3 years ago