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GenaCL600 [577]
2 years ago
7

If you start with the number 3.0 and move the decimal point one unit to the left, you wind up with 0.30. If you move the decimal

point a total of four units to the left, the result is the same as that of dividing the original number by _________.
Physics
1 answer:
Licemer1 [7]2 years ago
4 0

Answer:

10000    

Explanation:

When the decimal point shifts towards left, for each shift, the number is actually divided by 10.

When the decimal point shifts towards right, for each shift, the number is actually multiplied by 10.

when decimal point is shifted by total four units towards left, it is 0.0003 It is same as that dividing 3.0 by 10000

\Rightarrow \frac{3.0}{10000} = 0.0003

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The power rating of an electric lawn mower is 2000 watts if lawnmower is used for 120 seconds how many joules of work van it do
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1 watt = 1 joule/sec

2,000 watts = 2,000 joules/sec

                     (2,000 joule/sec) x (120 sec)

                  = (2,000 x 120)  (joule-sec/sec)

                  =   240,000 joules .
        
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2 years ago
Pendulum clocks are made to run at the correct rate by adjusting the pendulum’s length. Suppose you move from one city to anothe
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Obviously Lengthen...   T = 2\pi \sqrt{L/g}   or   g = 4\pi ^{2} L/g

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The population in the United States in 2015 was 321 million people. It is projected to increase to 438 million people by the yea
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It increases by 35% ......

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Read 2 more answers
Imagine that you are sitting in a closed room (no windows, no doors) when, magically, it is lifted from Earth and sent accelerat
Alik [6]

Answer:

You won't feel any change and will have no way to know that you've left the earth.

Explanation:

One of the formulations of the principle says that the properties of an inertial system under the effect of a gravitational field are the same as a non-inertial(accelerated) system. The inertial system under the effect of a gravitational field occurs when you are in the room on earth, and when the room is sent accelerating through space you have the non-inertial system. Both have the same properties, so it's impossible to tell the difference if you can't look outside.

7 0
2 years ago
The Palo Verde nuclear power generator of Arizona has three reactors that have a combined generating capacity of 3.937×109 W . H
den301095 [7]

Answer:

t = 2.68 x 10¹⁴ years

Explanation:

First we need to find the amount of energy that Sun produce in one day.

Energy = Power * Time

Energy of Sun in 1 day = (3.839 x 10²⁶ W)(1 day)(24 hr/1 day)(3600 s/ 1 hr)

Energy of Sun in 1 day = 3.32 x 10³¹ J

Now, the time required by the nuclear power generator, in years, will be:

Energy of power generator = Energy Sun in 1 day = 3.32 x 10³¹ J

3.32 x 10³¹ J = Power * Time

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t = 3.32 x 10³¹ /1.24 x 10¹⁷

<u>t = 2.68 x 10¹⁴ years</u>

8 0
2 years ago
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