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3 years ago

Please help on this one?

Physics

1 answer:

scoray [572]3 years ago

8 0

option B open system

because in open system energy and mass can escape from the system or can be added to it.

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What statement is true about the part of the electromagnetic spectrum that is visible to the human eye?

Alja [10]

Based on the options above, I see how the last option would actually be most fitting to how "the part of the electromagnetic spectrum that is visible to the human eye". This would be in separate parts, which would be divided into a certain number, which would actually be only 7 ranges of wavelengths. And therefore, this last statement would actually go very well and it would actually be the correct answer. And this would all relate to how <span> the part of the electromagnetic spectrum that is visible to the human eye, it's based on it's own 7 division parts that it has.

Your answer: </span> $\textsf{It is divided into seven ranges of wavelengths}$

7 0

4 years ago

Read 2 more answers

You are standing on a sheet of ice that covers the football stadium parking lot in Buffalo; there is negligible friction between

Murljashka [212]

Answer:

a) v = 0.0496 m / s , b) v = 0.0957 m / s

Explanation:

a) in this case we have an inelastic collision,

To solve these problems, the most important thing is to define the system formed by all the bodies, so that the forces during the crash have been internal and the amount of movement is conserved.

Therefore the system is made up of the ball and the player

initial instant. Before catching the ball

p₀ = m v₁

final moment. After you have grabbed the ball

$p_{f}$ = (m + M) v

the moment is preserved

po = p_{f}

m v₁ = (m + M) v

v = m / (m + M) v₁

let's calculate

v = 0.405 / (0.405 + 69) 8.50

v = 0.0496 m / s

in the same direction that the ball takes

b) In this case the ball bounces with a speed of V₂ = -7.80 m / s, the negative sign is because it is going in opposite directions

let's write the moment in two times

initial instant. Before the crash

p₀ = m v₁

try end. Right after the crash

p_{f} = m v₂ + M v

the moment is preserved

p₀ = p_{f}

m v₁ = m v₂ + M v

v = m (v₁ -v₂) / M

v = 0.405 /69 (8.50 - (7.80))

v = 0.0957 m / s

in the initial direction of the ball

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3 years ago

Describe why wearing a long-sleeved white T-shirt can help you feel cooler on a hot day than wearing a short-sleeved black T-shi

MAVERICK [17]

Answer:

Explanation:

In a white T-shirt its is not as dark of a color as black so when the sun hits it you won't get hot as much or as quick. If you wear a back shirt you will most likely be hotter because since it is a darker color when the sun hits it it make you hotter and you heat up quicker. You still might feel hot in a white T-shirt because long sleeve shirts trap in your body heat making you hotter because the heat has nowhere else to go.

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3 years ago

It's time to get a little more specific. Based on the velocity (Vx) graph for the car and the velocity data in the table, divide

UNO [17]

Answer:

0.2 – 4.6 seconds increasing speed in positive direction

4.6 - 7.8 seconds decelerating speed in a positive direction

8 - 17.2 seconds accelerating speed in a negative direction

Explanation:

**Plato** **Edmentum**n~ this question is pretty open ended, so its hard to get it wrong honestly, good luck <3 ~

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3 years ago

Water shortages means.no no no links pls <br>

Ann [662]

Answer:

The lack of sufficient water resources, including a lack of access t safe water supplies, to meet water needs within a region.

Explanation:

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3 years ago