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3 years ago

(MC) What is the result of the Sun's light being refracted when it is high in the sky around noon?

2 answers:

Ivan3 years ago

5 0

The result of the Sun's light being refracted when it is high in the sky around noon is blue, indigo and violet are strongly bent that mostly skim through the upper atmosphere making the sky appear blue. The refraction of the light during noon makes the sky blue.

Fittoniya [83]3 years ago

5 0

Explanation:

Refraction is the phenomenon which occurs when there is change in the direction of the light while traveling from one medium to the another medium.

Our atmosphere consists of the rarer medium and denser medium. The light gets refracted from when it travels from the sun. Blue, indigo and violet are strongly bent than any other colors. The blue has a shorter wavelength. Blue light is scattered more by the tiny air molecules than any other colors. Therefore, the sky appear blue in noon.

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Using the “On the Highway” distance time graph, what is the average velocity of the car? (use slope = rise/ run OR v = d/t)

julsineya [31]

Reading the graph, you get 300 km in 4 hours.

Givens

d = 300 km
t = 4 hours

Formula

v = d/t

Solution

v = 300/4 = 75 km/hour which is the slope.

Comment

Any point that you can read accurately will give you the same answer. Since the point are not that readable, you can estimate one of them

Try

t = 6 hours

d = 450 km An estimate. It looks to be 1/2 way between 400 and 500 km when t = 6 hours.

v = ??

v = 450/6

v = 75 miles / hour << Answer

8 0

3 years ago

The power rating of a light bulb (such as a 100-W bulb) is the power it dissipates when connected across a 120-V potential diffe

Aleonysh [2.5K]

Complete Question:

The power rating of a light bulb (such as a 100-W bulb) is the power it dissipates when connected across a 120-V potential difference.

Part A: What is the resistance of a 100 W bulb?

part B: Current flowing through a 100 W bulb?

part C: Find the resistance of a 40 W bulb

part D: Current flowing through a 40W bulb

Answer:

a)Resistance of a 100 W bulb, R = 144 ohms

b) Current flowing through a 100 W bulb, I =0.833 A

c)Resistance of a 40W bulb, R = 360 ohms

d)current in a 40W bulb, I = 0.33 A

Explanation:

a) Resistance of the 100 W bulb

Power, P = 100 W

Potential difference, V = 120 V

P = V²/R

R = V²/P

R = 120²/100

R = 144 ohms

b) the current flowing through the bulb

According to Ohm's law, V = IR

I = V/R

I = 120/144

I = 0.833 A

c) Find the resistance of a 40 W bulb

Since the voltage supplied is constant, P = V²/R

P = 40 W

V = 120 V

40 = 120²/R

R = 120²/40

R = 360 ohms

d)current flowing through the 40 W bulb

V = IR

I = V/R

I = 120/360

I = 0.33 A

7 0

4 years ago

Read 2 more answers

PLEASE HELP! WILL MARK BRAINLIEST!

Alborosie

Answer:22.22m/s

Explanation:

Answer: 22.22 m/s

Explanation:

Using the law of conservation of momentum:

Initial momentum of the system = final momentum of the system.

mu+m'u' = mv+m'v'

where u and u' are the initial velocities.

v and v' are the final velocities.

mass of bullet, m = 0.04 kg

mass of the block of wood, m' = 0.5 kg

initial velocity of bullet, u = 300 m/s

initial velocity of block, u' = 0

after collision, block and bullet would move together with velocity v

⇒0.04 kg × 300 m/s + 0 = 0.54 kg × v

⇒ v = 22.22 m/s

Thus, the bullet and the wood block move together as one object with the speed 22.2 m/s.

6 0

3 years ago

This glass of lemonade is sitting in the hot summer sun. As time passes, in which direction will heat transfer take place?

nata0808 [166]

Answer:

i dont understand when it says, "Which direction"....What does it mean??????

Explanation:

4 0

3 years ago

Read 2 more answers

A green plant has_____energy

adelina 88 [10]

A green plant has Chemical energy.

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4 0

3 years ago