3 years ago

How much of the electromagnetic spectrum is visible light?

Physics

2 answers:

Margarita [4]3 years ago

8 0

I believe the answer is D, only a small part of it

ollegr [7]3 years ago

8 0

Answer:

D) a small part of it

Explanation:

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Why does a box on the seat of a car slide around on the c one the car speeds up slows down or turns a corner?

Feliz [49]

Because the box keeps going straight at the same speed, while the seat under it speeds up, slows down, or changes direction.

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3 years ago

A blue car with mass mc = 427 kg is moving east with a speed of vc = 20 m/s and collides with a purple truck with mass mt = 1282

polet [3.4K]

Answer:8540 kg-g/s

Explanation:

Given

mass of blue car $m_c=427 kg$

velocity of blue car $v_c=20 m/s$

mass of the truck $m_t=1282 kg$

speed of truck $v_t=13 m/s$

After collision they stick and lock together

Let v be the velocity of combined system at angle \theta from vertical

Conserving momentum in east direction

$m_c\times v_c=(m_c+m_t)v\cos \theta$

$427\times 20 =1709\times v\cos \theta$ ------1

Conserving Momentum in Y direction

$m_t\times v_t=(m_c+m_t)v\sin \theta$

$1282\times 13 =1709\times v\sin \theta$ -------2

squaring and then adding 1 & 2 we get

$(8540)^2+(16666)^2=(1709)^2\cdot v^2$

v=10.95 m/s

initial momentum of car $=427\times 20=8540 kg-m/s$

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4 years ago

Select the order in which the flow of current is listed from greatest to the least.

Radda [10]

Answer:

Short circuit, closed circuit, open circuit

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3 years ago

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Which of this following have the minimum frequency in their sound?

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Answer:A MAN

Explanation:

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3 years ago

If state troopers were instructed to write a ticket for any motorist going 1 mph over the speed limit, one could argue that this

elena-s [515]

Answer:

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