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IrinaK [193]
3 years ago
10

Objects 1 and 2 attract each other with a gravitational force

Physics
1 answer:
kolbaska11 [484]3 years ago
7 0

Answer:

The new gravitational force will be of 4.5 units

Explanation:

Recall that the formula for the gravitational force between two objects of masses m1 and m2 separated by a distance d is given by:

F_g=G\,\frac{m1*m2}{d^2}

in our case, we are told that such gives 72 units of force:

F_g=G\,\frac{m1*m2}{d^2} =72

Then we change the distance between the objects to 4 times the original (4 * d), such will produce a new gravitational force Fg':

F_g'=G\,\frac{m1*m2}{(4*d)^2} =G\,\frac{m1*m2}{16*d^2} = \frac{1}{16} *G\,\frac{m1*m2}{d^2}=\frac{1}{16} *\,72=4.5

Therefore the new gravitational force would be of 4.5 units

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A 1380 kg car starts from rest at the
Ulleksa [173]

Answer: 72200

Explanation:

First you must find the height for this is on an inclined hill using:

h=Lsin(angle) —> 28.0sin(11.0) = 5.34

Now you would just use the PE equation (mgh) because you are finding ME and when you starting from the top KE=0, showing that what ever answer you get from PE would equal the same for ME.

Using mgh:

m=1380

g=9.80

h=5.34

(1380)(9.8)(5.34)

=72218.16

*Rounding to the 3rd=72200

Hope this helps :)

6 0
2 years ago
A defibrillator passes 14.0 A of current through the torso of a person for 0.0300 s. How much charge moves in coulombs?
krek1111 [17]
<h2>Answer:</h2>

4.2 C

<h2>Explanation:</h2>

The charge (Q) moving is the product of the current(I) flowing through the torso of the person and the time taken (t) for the flow.

i.e

Q = I x t

Where;

I = current = 14.0A

t = time taken  = 0.0300s

Substituting the values of I and t into the equation above gives

Q = 14.0 x 0.0300

Q = 4.2 C

Therefore quantity of charge moving is 4.2 C

4 0
3 years ago
What is the worlds most common acid and also the worlds most commin base
mrs_skeptik [129]

Answer: Water is the world's most common acid and base.

3 0
2 years ago
_ Ba+_O2 =_BaO how do I balance this?
astraxan [27]

Answer:

02-ba=_4

Explanation:

5 0
2 years ago
Which layer of the atmosphere has the highest density?
fomenos

Answer:

The Troposphere is the lowermost portion of Earth’s atmosphere. It is the densest layer of the atmosphere and contains approximately 75 percent of the mass of the atmosphere and almost all the water vapor and aerosol. The troposphere extends from the Earth’s surface up to the tropopause where the stratosphere begins.

Explanation:

4 0
3 years ago
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