Ask question

Ask question

All categories

2 years ago

13

Part of the electromagnetic spectrum is visible light. Which color is at the opposite end from red on the visible spectrum?.

1 answer:

krek1111 [17]2 years ago

6 0

Light at the lower end of the visible spectrum, having a longer wavelength, about 740 nm, is seen as red; light in the middle of the spectrum is seen as green; and light at the upper end of the spectrum, with a wavelength of about 380 nm, is seen as violet

You might be interested in

Why is air warmer near Earth's surface?

Sati [7]

Answer:

I am pretty sure it is A!

:D

8 0

3 years ago

The equation NaCl →Na +Cl is a ______ reaction. A. decomposition B. single displacement C. synthesis

Citrus2011 [14]

The correct answer is (a.) decomposition. The equation NaCl --> Na + Cl is a decomposition reaction. That is because the synthesis reaction looks like this Na + Cl = NaCl, and is the opposite of the decomposition. The decomposition reaction is the chemical reaction in which a single compound break into new compounds.

4 0

3 years ago

A watermelon is blown into three pieces by a large firecracker. Two pieces of equal mass m fly away perpendicular to one another

Alenkinab [10]

Answer:

Speed of larger piece is $\dfrac{V\sqrt{2}}{3}$

Explanation:

We apply the principle of conservation of momentum.

The watermelon is initially at rest. The initial momentum = 0 kg m/s in all directions.

After the collision,

Vertical momentum = momentum of piece in y-direction + y-component of momentum of larger piece = $mV + 3mv_{ly}$

Here, $v_{ly}$ is the y-component of velocity of larger piece.

This is equal to 0, since the initial momentum is 0.

$v_{ly}=\dfrac{V}{3}$

Horizontal momentum = momentum of piece in x-direction + x-component of momentum of larger piece = $mV + 3mv_{lx}$

Here, $v_{lx}$ is the x-component of velocity of larger piece.

This is also equal to 0, since the initial momentum is 0.

$v_{lx}=\dfrac{V}{3}$

The velocity of the larger piece, $v_l$ , is the resultant of $v_{lx}$ and $v_{ly}$ . Since they are mutually perpendicular,

$v_l = \sqrt{v_{ly}^2+v_{lx}^2}= \sqrt{\left(\dfrac{V}{3}\right)^2+\left(\dfrac{V}{3}\right)^2}$

$v_l = \dfrac{V\sqrt{2}}{3}$

3 0

4 years ago

I REALLY REALLY REALLY NEED HELP WITH THIS PLSSSSSS ASAP FIRST ANSWER GETS BRAINLIST

aev [14]

Answer:

I think 80J

Explanation:

50 percent efficient means 50% output

3 0

2 years ago

Read 2 more answers

? If Proxima Centauri is 4.2 light-years away from the Sun, how many AU is that?

Likurg_2 [28]

Answer:

here is explanation

Explanation:

Proxima Centauri The closest star to our own Is still 40,208,000,000,000 km away.

(OR ABOUT 268,770 AU)

5 0

3 years ago