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Vsevolod [243]
3 years ago
14

Difference berween uniform velocity and non uniform velocityin 4 points​

Physics
1 answer:
ivann1987 [24]3 years ago
5 0

Answer:

Uniform velocity involves a straight-line motion over equal distance and in equal time intervals. Non-uniform motions involve unequal distances in equal interval of time.

Explanation:

A body moving with uniform velocity occurs when it travels in  a straight line path, and covers equal distances in equal time intervals.

Example a graph of a bike covering equal distance in equal time intervals.

A body moving with a non-uniform velocity occurs when it travels to cover unequal distance in equal intervals of time. Example a bike travelling in a crowded road.

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What natural phenomena could serve as alternative time standards?
KonstantinChe [14]

Answer:

Explanation:

radioactive decay, planetary orbit, speed of light, etc.

4 0
3 years ago
Which statement accurately describes the charge of the nucleus of an atom?
Aleksandr [31]

Answer:

A. The nucleus can be either positively charged or neutral.

Explanation:

The nucleus of an atom contains protons and neutrons only. Whereas electrons revolve around the nucleus. Protons are positively charged, neutrons have no charge and electrons are negatively charged.

3 0
3 years ago
Carol is farsighted ( presbyopia) and cannot see objects clearly that are closer to her eyes than about meter. She sees objects
egoroff_w [7]

Answer:

1.0 dioptres

Explanation:

Farsightedness is an eye defect in which a person can see far objects clearly but not near objects. That implies that the patients' near point is farther than 25cm which is the normal least distance of distinct vision.

Farsightedness results from the eyeball being too long or the crystalline lens not being sufficiently converging.

Carol is farsighted with a near point of about a meter (100cm). We desire to make a lens to enable her near point be reduced to about 50cm. The focal length and power of this lens is calculated in the image attached.

The power of a lens is the inverse of its focal length in meters hence the 100 in the formula for power of the lens.

7 0
3 years ago
Read 2 more answers
Solvents are the substances that dissolve solutes; therefore, solvents are always liquids.
Nina [5.8K]
False, although they are usually a liquid. Solvents can be a solid or gas as well. Also, solutes can be in any state as well.
4 0
3 years ago
A lunar module weighs 12 metric tons on the surface of the Earth. How much work is done in propelling the module from the surfac
zhuklara [117]

Answer:

W=76.55 miles.metric tons

Explanation:

Given that

Weight on the earth = 12 tons

So weight on the moon =12/6 = 2 tons

 ( because at moon g will become g/6)

As we know that

F=\dfrac{K}{x^2}

Here x= 1100 miles

F 2 tons

2=\dfrac{K}{1100^2}

So

K=2.4\times 10^6

We know that

Work = F. dx

W=\int_{x_1}^{x_2}F.dx

W=\int_{1100}^{1140}\dfrac{2.4\times 10^6}{x^2}.dx

W=-2.4\times 10^6\left[\dfrac{1}{x}\right]_{1100}^{1140}

W=-2.4\times 10^6\left[\dfrac{1}{1140}-\dfrac{1}{1100}\right]

W=76.55 miles.metric tons

6 0
3 years ago
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