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Alex787 [66]
3 years ago
12

If the moon were 2 times closer to earth than it is now, the gravitational force between earth and the moon would be

Physics
1 answer:
il63 [147K]3 years ago
7 0
So much brighter and the moon would be so much darker than it is now because the moon is further away from the moon than it is now...
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What is meant by a quantity ? Mention any three system of unit that you know to measure a
d1i1m1o1n [39]

<em> </em>

<em> the quantity which can be measured is called </em>

<em> the quantity which can be measured is called quantity for example length and mass time temperature </em>

<em> the quantity which can be measured is called quantity for example length and mass time temperature please brainlist </em>

<em> the quantity which can be measured is called quantity for example length and mass time temperature please brainlist </em>

4 0
3 years ago
How should a scientist confirm that an experiment has good data
r-ruslan [8.4K]
Repeat the experiment to make sure it gives the same results.

Hope i helped ; )
4 0
3 years ago
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A small, positively charged ball is moved close to a large, positively charged ball. which describes how the small ball likely r
NNADVOKAT [17]

Answer;

-it will move away from the large ball because like charges repel.

Explanation;

-Electric force is the force that pushes apart two like charges, or that pulls together two unlike charges. The basic law of electrostatics Like charges of electricity repel each other, whereas unlike charges attract each other.

When small, positively charged ball is moved close to a large, positively charged ball it would be pushed away from the large positively charged ball since they are both positively charged. One has to put in energy to try to move the small ball closer to the large ball. The closer one try to move it to the large ball, the more energy one has to put in, so the more electrical potential energy the small ball would have.

6 0
3 years ago
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Please give an answer that is coherent
Semmy [17]

Answer:

480

Explanation:

resistance equals to potential difference divide by electric current

120÷0.25

=480

6 0
3 years ago
It is known that the kinetics of recrystallization for some alloy obeys the Avrami equation, andthat the value of n in the expon
trapecia [35]

Answer:8.76\times 10^{-3} min^{-1}

Explanation:

Given

n=5

0.3 fraction recrystallize after 100 min

According to Avrami equation

y=1-e^{-kt^n}

where y=fraction Transformed

k=constant

t=time

0.3=1-e^{-k(100)^5}

e^{-k(100)^5} =0.7

Taking log both sides

-k\cdot (10^{10}=\ln 0.7

k=3.566\times 10^{-11}

At this Point we want to compute t_{0.5}\ i.e.\ y=0.5

0.5=1-e^{-kt^n}

0.5=e^{-kt^n}

0.5=e^{-3.566\times 10^{-11}\cdot (t)^5}

taking log both sides

\ln 0.5=-3.566\times 10^{-11}\cdot (t)^5

t^5=1.943\times 10^{10}

t=114.2 min

Rate of Re crystallization at this temperature

t^{-1}=8.76\times 10^{-3} min^{-1}

3 0
3 years ago
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