Physics Middle School

You jump into a swimming pool on a day when the air temperature is 100°F and the water is 80°F. Which statement correctly describes the flow of heat?

A.
Heat flows from the water to your body.
B.
Heat flows from the water to the air.
C.
Heat flows from your body to the water.
D.
Heat flows from your body to the air.

Answers

Answer 1

Answer:

A

Explanation:

Should be the answer

Answer 2
The answer is A. Heat flows from the water to your body

Related Questions

The movement of liquid particles through a characteristic path or circlar motion

Answers

Answer:

a path

it refers to a path or way taken by a matter to displce

It is talking about a path

A ball of mass 100g thrown by a man moves at a velocity of 100m/s. what is the momentum? need the answer step by step plssss!!​ i need it fast!!!!!!!

Answers

Explanation:

Mass of the ball= 100 g = 0.1 kg

Velocity of the ball before collision=10 m/s

Momentum of the ball before collision, p(i)=mv= 0.1×10=1 kgm/s

Since, ball returns back with same velocity

Therefore, velocity of ball after collision = -10 m/s (-ve sign due to opposite direction)

So, momentum of ball after collision,p(f) = 0.1 ×(-10) = -1 kgm/s

Now, Impulse generated in the ball= change in momentum= p(f)-p(i)= -1–1= -2 kgm/s

λ=
mv
h
​

λ⟶De Broglie wavelength
m=100 g=
1000
100
​
kg=0.1 kg
v=100 ms
−1

λ=
mv
h
​
=
0.1×100
6.623×10
−34

​
=6.626×10
−35
m
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