3 years ago

Light's color depends most on its _____.

Physics

2 answers:

Art [367]3 years ago

8 0

Answer:

The colour of visible light depends on its wavelength.

max2010maxim [7]3 years ago

5 0

Wavelength i’m assuming that would be the most reasonable

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A bicycle-cab driver takes two customers across the park. The driver exerts a constant force of 1,400 Newtons as he pedals the c

seraphim [82]

Power is the work performed divided by time in seconds. The work is the force times distance:
$W=Fd=1400*200=280000J$

the time in seconds is 60*11+30=690s so the power is

$P=\frac{280000J }{690s}=405.8W$

So choice B

4 0

3 years ago

A chemist needs 15.0 grams of ethanol for a reaction. If the density of ethanol is 0.789 g/ml, how many milliliters of alcohol s

harina [27]

Mass=15g
Density=0.789g/ml

$\\ \bull\tt\dashrightarrow Density=\dfrac{Mass}{Volume}$

$\\ \bull\tt\dashrightarrow Volume=\dfrac{Mass}{Density}$

$\\ \bull\tt\dashrightarrow Volume=\dfrac{15}{0.789}$

$\\ \bull\tt\dashrightarrow Volume=19.01mL$

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3 years ago

a graph depicts force versus position. what represents the work done by the force over the given displacement?

atroni [7]

The area under the graph. W = f d cos(theta), so you want the number that is force times displacement, which corresponds to the area under the graph.

7 0

3 years ago

Plsase help meeeeeee

Law Incorporation [45]

Answer:

It's A

Hope this helped

8 0

3 years ago

Using the equation T=2π√L/g solve for L

weqwewe [10]

You said T = 2 · π · √(L / g)

(I think that's the formula for the full-swing period of a simple pendulum.)

Divide each side by 2π : T/2π = √(L / g)

Square each side: (T/2π)² = L / g

Multiply each side by ' g ' : L = g · (T/2π)²

4 0

3 years ago