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4 years ago

Please help on this one?

Physics

1 answer:

Sati [7]4 years ago

4 0

I’m pretty sure it’s A

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evaporation

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4 years ago

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2 years ago

When is thermal equilibrium achieved between two objects?

ratelena [41]

C) When both objects have the same temperature.

<em>Hope this helps!</em>

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3 years ago

Read 2 more answers

Robbie found a rock in a stream. The rock was smooth and round. What MOST LIKELY caused this to happen?

Degger [83]

Answer:

C, weathering by the water.

Explanation:

While in the river, it scraps againsts other rocks and things, which causes it to change shape. For example be smoother and round.

7 0

3 years ago

The x component of vector is -27.3 m and the y component is +43.6 m. (a) What is the magnitude of ? (b) What is the angle betwee

lara [203]

Answer:51.44 units

Explanation:

Given

x component of vector is $-27.3\hat{i}$

y component of vector is $43.6\hat{j}$

so position vector is

$r=-27.3\hat{i}+43.6\hat{j}$

Magnitude of vector is

$|r|=\sqrt{27.3^2+43.6^2}$

$|r|=\sqrt{2646.25}$

|r|=51.44 units

Direction

$tan\theta =\frac{43.6}{-27.3}=-1.597$

vector is in 2nd quadrant thus

$180-\theta =57.94$

$\theta =122.06^{\circ}$

4 0

3 years ago