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garik1379 [7]
3 years ago
11

A skydiver has jumped out of an aircraft but has not yet opened her

Physics
1 answer:
Sergio039 [100]3 years ago
8 0

Answer:

2

Explanation:

She's attracted with a great force back to earth's surface

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A scientific law:
vladimir1956 [14]
D. All of the above

This is true because scientific laws are all 3:
• They are well tested (to become a definite law)
• They are usually in equation form; for example: (e=mc^2)
• They are usually an example of a scientific model. The model generally will demonstrate the principle.

Hope this helps! ✅
3 0
4 years ago
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Mixtures that appear to be homogeneous but actually contain particles that are intermediate in size between solutions and suspen
Yakvenalex [24]
2 is the answer hope you have a great day
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3 years ago
If the length of a ramp is increased, what will happen to the input force?
Art [367]
The input force will increase too because the more the ramp is increasing the more force is being put on the object going down the ramp... hope this helps ^-^
3 0
3 years ago
Put a ball on the floor what forces are acting on it
In-s [12.5K]

Answer: Gravity

Explanation: Gravity is pulling down on the ball, making it stay on the floor

8 0
4 years ago
You pour 250 g of tea into a Styrofoam cup, initially at 80∘C and stir in a little sugar using a 100-g aluminum 20∘C spoon and l
jok3333 [9.3K]

To solve this problem it is necessary to apply the concepts related to the conservation of energy and heat transferred in a body.

By definition we know that the heat lost must be equal to the heat gained, ie

Q_g = Q_l

Where,

Q = Heat exchange

The heat exchange is defined as

Q = c_p m \Delta T

Where,

c_p = Specific heat

m = mass

\Delta T= Change in Temperature

Therefore replacing we have that

Q_g = Q_l

c_{p-tea} m \Delta T =  c_{p-al} m \Delta T

Replacing with our values we have that

0.25*4180*(80-T) = 0.1*900*(T-20)

11.61*(80-T) = T-20

T= \frac{948.8}{11.61}

T = 75.24\°C

Therefore the highest possible temperature of the spoon when you finally take it out of the cup is 75.24°C

3 0
3 years ago
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