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Lemur [1.5K]
3 years ago
15

Based on Newtons law of universal gravitation, complete the following table.

Physics
2 answers:
madam [21]3 years ago
5 0
Gravity increases as mass increases.

Gravity decreases when distance decreases

I hope I help.
mart [117]3 years ago
4 0

Explanation:

According to the Newton's law of universal gravitation, the force between two bodies is given by :

F=G\dfrac{m_1m_2}{d^2}..........(1)

m_1\ and\ m_2 are masses

d is the distance between objects

From equation (1), the force of gravity increases when distance decreases or mass increases and the force of gravity decreases when mass decreases or distance increases.

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A ball accelerates from rest down a ramp at 2.4 m/s^2. Write an equation that could be used to determine the balls finals positi
Alik [6]

Answer:

x=2.4t+4.9t^2

Explanation:

This equation is one of the kinematic equations to solve for distance. The original equation is as follows:

X=Xo+Vt+1/2at^2

We know that the ball starts at rest meaning that its initial velocity and position is zero.

X=0+Vt+1/2at^2

Since it is going down the ramp, you can use the acceleration of gravity constant. (9.81 m/s^2) and simplify that with the 1/2.

X=Vt+4.9t^2

Note: Since the positive direction in this problem is down, you are adding the 4.9t^2, but if a question says that the downward direction is negative, you would subtract those values.

Now, substitute in your velocity value.

X=2.4t+4.9t^2

8 0
2 years ago
Why does the bottom of a swimming pool always appear shallower than it actually is<br>​
emmainna [20.7K]

Answer:

The refraction of light at the surface of water makes ponds and swimming pools appear shallower than they really are.

Explanation:

so its just the refraction of light at the surface

8 0
3 years ago
Read 2 more answers
contractor will use a package emulsion having a specific gravity of 1.25 and relative bulk strength of 130 to open an excavation
tester [92]

Answer:

The burden distance is 7 ft

Solution:

As per the question:

Specific gravity of package emulsion, SG_{E} = 1.25

Specific gravity of diabase rock, SG_{R} = 2.76

Diameter of the packaged sticks, d = 3 in

Now,

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B = [\frac{2SG_{E}}{SG_{R}} + 1.5]\times d

B = [\frac{2\times 1.25}{2.76} + 1.5]\times 3 = 7.22

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3 years ago
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kirza4 [7]

We're happy that you're asking for the "displacement", because displacement is simply the straight-line distance between the start-point and end-point, and we don't care about any of the motions or gyrations along the way.

From the graph:

-- The location of the object at time-zero, when time begins, is  10 meters.

-- The location of the object after 6.0 seconds is  4 meters.

-- The distance between the start-point and end-point is

(final location) - (initial location)

-- So Displacement = (4 meters) - (10 meters)

<em>Displacement = -6 meters</em>

3 0
3 years ago
Imagine that you have two marbles on a table. You roll one marbles towards another. When the marble collide, the marble at rest
Alika [10]

Because that's called friction. When to things collide it causes friction which makes them stop rolling>

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