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Keith_Richards [23]
2 years ago
10

What empirical evidence has led us to believe in the theory of plate tectonics?

Physics
2 answers:
Alika [10]2 years ago
4 0
The answer is believed to be C because the evidence is from fossils and glaciers.
san4es73 [151]2 years ago
4 0
The answer is D because if there are tropical fossils in Antartica that means that the continents were once together, which proves plate tectonics because that means plate tectonics moved the supercontinent (Pangea) apart.
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An airplane with an airspeed of 120 km/h has a heading of 30 degree east of North in a wind that is blowing toward the east at 6
lesya692 [45]

Answer:

Explanation:

Velocity of plane relative to ground V_pg = ?

Given the velocity in vector form ,

velocity of plane relative to air V_pw = 120 cos30 i + 120sin30j

V_wg = 60 i

V_pg = V_pw +V_wg

= 120 cos30 i + 120sin30j + 60i

= 164 i + 60 j

magnitude

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8 0
3 years ago
A small dog is trained to jump straight up a distance of 1.2 m. How much kinetic energy does the 7.2-kg dog need to jump this hi
LUCKY_DIMON [66]
Answer:84.672 joules.

Explanation:

1) Data:

m = 7.2 kg
h = 1.2 m
g = 9.8 m / s²

2) Physical principle

Using the law of mechanical energy conservation principle, you have that the kinetic energy of the dog, when it jumps, must be equal to the final gravitational potential energy.

3) Calculations:

The gravitational potential energy, PE, is equal to m × g × h

So, PE = m × g × h = 7.2 kg × 9.8 m/s² × 1.2 m = 84.672 joules.

And that is the kinetic energy that the dog needs.
8 0
3 years ago
HELP!!!!!! Need Help !!!
denis23 [38]

Answer:

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3 0
2 years ago
A variable that is not changed.
AleksAgata [21]

Answer:

A controlled variable does not change during a experiment

Explanation:

it's c

5 0
3 years ago
Answer:<br> 1m Up + 5m Left + 2m Down
Natali [406]
Oh ok that is v cool
3 0
2 years ago
Read 2 more answers
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