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3 years ago

How is wavelength related to the different colors we see in a rainbow?

1 answer:

6 0

As the full spectrum of visible light travels through a prism, the wavelengths separate into the colors of the rainbow because each color is a different wavelength. Violet has the shortest wavelength, at around 380 nanometers, and red has the longest wavelength, at around 700 nanometers.

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a ladybug crawls vertically on a leaf. its motion is shown on the following graph of vertical position y vs time t what is the a

Sladkaya [172]

Explanation:

The attached figure shows the position-time graph of a ladybug. We need to find the average speed of the ladybug between t = 4 s to t = 7 s.

We know that, the slope of a position-time graph gives velocity of an object. It can be given by :

$v=\dfrac{y_2-y_1}{t_2-t_1}$

In this case, the position of a ladybug at t = 4 s and at t = 7 s is the same i.e. 2 m.

It means its velocity is equal to at this time or we can say that ladybug is at rest.

8 0

4 years ago

Read 2 more answers

Please help ASAP! Willing to give brainliest.

poizon [28]

Answer: B

Explanation:the voltage is just like the force that drives the current through out the circui... When trippled, the force increases and the current increases since the resistance in the circuit remains constant.

3 0

4 years ago

Read 2 more answers

Two sinusoidal waves traveling in opposite directions interfere to produce a standing wave with the wave function y = (2.00) sin

olga2289 [7]

Answer:

Part a)

$\lambda = 4\pi$

Part b)

$f = 47.7 Hz$

Part c)

$v = 600 m/s$

Explanation:

Part a)

As we know that angular wave number is given as

$k = \frac{2\pi}{\lambda}$

$k = 0.500$

$0.500 = \frac{2\pi}{\lambda}$

$\lambda = \frac{2\pi}{0.500}$

$\lambda = 4\pi$

Part b)

As we know that angular frequency is given as

$\omega = 300 rad/s$

$\omega = 2\pi f$

$300 = 2\pi f$

$f = \frac{300}{2\pi}$

$f = 47.7 Hz$

Part c)

Speed of the wave is given as

$v = \lambda \times frequency$

so we have

$v = 4\pi \times 47.7$

$v = 600 m/s$

8 0

3 years ago

Mary starts from her house, walks 80 meters south, and stops to chat with her aunt on the sidewalk. After chatting for a few min

marin [14]

Mary walks:
d 1 = 80 m, d 2 = 125 m, d 3 = 45 m
t = 10 minutes = 600 seconds;
Average speed:
v = ( d 1 + d 2 + d 3 ) / t
v = ( 80 m + 125 m + 45 m ) / 600 s
v = 250 m / 600 s
v = 0.4167 m/s ≈ 0.42 m/s
Answer:
E ) 0.42 meters/second

5 0

3 years ago

A hockey puck slides across a frozen pond. If ice friction and air resistance are neglected, the force needed to keep the puck s

algol [13]

Answer:

The force needed to keep the puck sliding at constant velocity is 0N

Explanation:

Since the ice friction and air resistance are neglected, the force needed to keep the puck sliding at constant velocity is 0N.

The acceleration due to gravity (g) will be zero since there is no ice friction and air resistance taken into consideration, and therefore,

F = m*g = m*0 = 0N

4 0

3 years ago