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Natali5045456 [20]
3 years ago
10

Objects that gain elastic energy by being stretched out

Physics
1 answer:
Monica [59]3 years ago
6 0
Rubber band, elastic, spring
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What is the most widely accepted model used to predict the future of the universe?
lukranit [14]

Answer A an Open Universe

The future of universe is predicted from space time curve. There are many possibilities solutions or outcomes which on plotting are classified as open, close, flat and curved. Open Universe is when universe is expanding and it will continue to expand forever. This is proved experimentally as well that universe is expanding using red and blue shift observations from various aspects.

5 0
3 years ago
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Three cars (car F, car G, and car H) are moving with the same velocity when the driver suddenly slams on the brakes, locking the
Nastasia [14]

Answer:

Car H

Explanation:

Frictional force is a resistant force. It is given as:

F = u*m*g

Where u = coefficient of friction

m = mass

g = acceleration due to gravity

From the formula above, we see that frictional force is dependent on the mass of object and the coefficient of friction.

Since they all have the same tires, the coefficient of friction between the tire and the floor is the same for each car. Acceleration due to gravity, g, is constant.

The only factor that determines the frictional force of each car is the mass. Hence, the more the mass, the more the frictional force.

So, the most massive car will have the most frictional force and hence, will come to a stop quicker than the others. The least massive car will have the least frictional force and so, will take a longer time to stop.

5 0
3 years ago
What do you call any two colors of light that combine to form white light?
Sever21 [200]
Hello there!


We called that complementary colors.

As always, it is my pleasure to help students like you!

4 0
3 years ago
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When an object reflects all the light waves that strike it looks white or black?
egoroff_w [7]
Light waves can be from any color, depends on what it is bouncing no or reflecting off of.
3 0
3 years ago
Suppose the farthest distance a person can see without visual aid is 53 cm.
natita [175]

Answer: a. 53cm b. Diverging c. 0.02dioptres

Explanation:

Since the person in question cannot see far object clearly, it shows that the individual is suffering from myopia (short sightedness).

If the object distance (u) is 53cm. for the person to be able to see far way, it means the image must be at infinity. This shows image distance v is infinity. Using the lens formula

1/f = 1/u+1/v

1/f = 1/53 + 1/Infinity

1/f = 1/53 + 0

f=53cm

b) The lens used is concave lens (diverging lens) to diverge all rays outwards

c) Power of a lens P will be 1/53.

P = 0.02dioptres

8 0
3 years ago
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