3 years ago

Which situation would water evaporate faster from.quick help?!

Physics

2 answers:

Tanya [424]3 years ago

5 0

Bestie this is super easy.
it’s the last one

Temka [501]3 years ago

3 0

The last option in Puerto Rico where it’s sunny and 88°

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Can someone please help me no one ever responds to my question and I need the correct answer. I believe the answer is C but i'm

GarryVolchara [31]

Yes you were correct the answer was c

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3 years ago

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zhannawk [14.2K]

Answer:

Explanation:

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3 years ago

We can model a pine tree in the forest as having a compact canopy at the top of a relatively bare trunk. Wind blowing on the top

solmaris [256]

Answer:

114.075 N

798.525 Nm

Explanation:

C = Drag coefficient = 0.5

ρ = Density of air = 1.2 kg/m³

A = Surface area = 9 m²

v = Velocity of wind = 6.5 m/s

r = Height of the tree = 7 m

Drag equation

$F=\frac{1}{2}\rho CAv^2\\\Rightarrow F=\frac{1}{2}\times 1.2\times 0.5\times 9\times 6.5^2\\\Rightarrow F=114.075\ N$

Magnitude of the drag force of the wind on the canopy is 114.075 N

Toque is given by the product of force and radius

$\tau=F\times r\\\Rightarrow \tau=114.075\times 7\\\Rightarrow \tau=798.525\ Nm$

Torque exerted on the tree, measured about the point where the trunk meets the ground is 798.525 Nm

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3 years ago

Explain why a roller coaster’s second hill cannot be taller than the first hill.

max2010maxim [7]

There will not be enough momentum from the first hill to cross another hill if he same or larger size because of the way potential energy and kinetic energy works it will not be able go as high as it could go on he fist hill.

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3 years ago

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Which of the following is true of alternating current? Select all that apply.

Nitella [24]

Answer:

The correct option is (C).

Explanation:

Electric current can be direct or alternating.

The direct current flows only in one direction. It is unidirectional.

The alternating current or an C current reverse its direction periodically.

So, the correct statement regarding the alternating current is (c) i.e. Electrons reverse direction periodically.

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3 years ago