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Ivan
2 years ago
11

Is gravity a non-contact form?

Physics
1 answer:
sattari [20]2 years ago
8 0
No, we cannot touch gravity nor can we physically see it. We can only see how it works.
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A hot drink in a room is at a temperature of 20 C
IRISSAK [1]

Answer: the drink cooled down to the same temperature as the room it was in.

Explanation: due to the change and temperature of the room, it cause the heat particles to exchange, causing it cool

8 0
3 years ago
Rank the six combinations of electric charges on the basis of the electric force acting on q1. Define forces pointing to the rig
riadik2000 [5.3K]

Answer:

Plss see attached file

Explanation:

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2 years ago
if the mass of the objects stays the same and their distance from eachother decreases, then the force of gravity between the two
dedylja [7]
Then the force of gravity between them would be quadrupled and so on but the gravitational force is inversely proportional to the square of the separation distance between the two interacting objects which makes more separation distance will result in weaker gravitational forces
5 0
9 months ago
A concave lens has a focal length of 20 cm. A real object is 30 cm from the lens. Where is the image? What is the magnification?
Pani-rosa [81]

Answer:

12 cm and 0.4

Explanation:

f = - 20 cm, u = - 30 cm

Let v be the position of image and m be the magnification.

Use lens equation

1 / f = 1 / v - 1 / u

- 1 / 20 = 1 / v + 1 / 30

1 / v = - 5 / 60

v = - 12 cm

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6 0
2 years ago
Calculate the acceleration of a car that can go from rest to 100 km/h in 10 seconds
Basile [38]

Answer: 2.77 m/s^{2}

Explanation:

Acceleration a is defined as the variation of velocity \Delta V with time \Delta t:

a=\frac{\Delta V}{\Delta t}

Where:

\Delta V=100km/h-0km/h=100km/h=27.77m/s

\Delta t=10 s

a=\frac{27.77m/s}{10 s}

Finally:

a=2.77m/s^{2}

8 0
3 years ago
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