1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
anastassius [24]
4 years ago
7

Why is the sky blue this is a serious question about physics lol

Physics
1 answer:
Ymorist [56]4 years ago
6 0
On a clear cloudless day, the sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we visually perceive red and orange colors because the blue light has been scattered out and away from the line of optical discernment.

Hope this helps!   :)

You might be interested in
Two blocks of masses 20 kg and 8.0 kg are connected togetherby
Dmitry [639]

Answer:

The tension is 14 N

Explanation:

For this problem we have to use newton's law, so:

F=m*a

The second string is connected to the mass of 8 kg, but the mass of 8 kg is connected to the mass of 20kg, so we can say that the second string is handling the two masses. so:

F=28kg*0.5\frac{m}{s^2}=14N

3 0
3 years ago
A 100100​-watt ​[W] motor ​(6060​% ​efficient) is available to raise a load 1010 meters​ [m] into the air. If the task takes 808
dlinn [17]

Answer:

m = 48.93kg

The load is 48.93kg.

Explanation:

Given;

Power P = 100watts

Efficiency e = 60% = 0.60

distance d = 10 m

time taken t = 80 s

Acceleration due to gravity g = 9.81m/s

Workdone W can be expressed as;

W = ePt = Fd = mgd

ePt = mgd

Making m the subject of formula;

m = ePt/gd

Substituting the values;

m = (0.60×100×80)/(9.81×10)

m = 48.93kg

The load is 48.93kg.

4 0
3 years ago
Do I have to choose physics to be an architect
horrorfan [7]
Physics is a very important part of Architecture. It helps you to understand how forces work on things that you build, so that they don't collapse. So yes, you do. 

7 0
3 years ago
Read 2 more answers
This is the process of retaining radiation without reflecting it.
Bezzdna [24]
Absorption is the correct term.
6 0
4 years ago
Read 2 more answers
a rugby player passes the ball 5.34 m across the field, where it is caught at the same height as it left his hand. at what angle
MakcuM [25]

Answer:

31.035^{\circ}

Explanation:

x = Displacement in x direction = 5.34 m

t = Time taken to travel the displacement

y = Displacement in y direction = 0

u = Initial velocity of ball = 7.7 m/s

g = Acceleration due to gravity = 9.81\ \text{m/s}^2

Displacement in x direction is given by

x=u\cos\theta t\\\Rightarrow t=\dfrac{5.34}{7.7 \cos\theta}

Displacement in y direction is given by

y=u\sin\theta t-\dfrac{1}{2}gt^2\\\Rightarrow 0=7.7\sin\theta \dfrac{5.34}{7.7\cos\theta}-\dfrac{1}{2}\times 9.81 (\dfrac{5.34}{7.7\cos\theta})^2\\\Rightarrow 0=7.7\sin\theta-4.905\times \dfrac{5.34}{7.7\cos\theta}\\\Rightarrow 0=7.7^2\sin\theta \cos\theta-4.905\times 5.34\\\Rightarrow 0=7.7^2\dfrac{\sin2\theta}{2}-4.905\times 5.34\\\Rightarrow 0=7.7^2\sin2\theta-4.905\times5.34\times 2\\\Rightarrow \sin2\theta=\dfrac{4.905\times 5.34\times 2}{7.7^2}\\\Rightarrow 2\theta=\sin^{-1}\dfrac{4.905\times 5.34\times 2}{7.7^2}

\Rightarrow \theta=\dfrac{62.07}{2}\\\Rightarrow \theta=31.035^{\circ}

The angle at which the ball was thrown is 31.035^{\circ}.

7 0
3 years ago
Other questions:
  • _heat is the amount of heat required to change the temperature of 1 gram of a substance by 1°C, and it is related to the chemica
    8·2 answers
  • If you could go a year into the future, or 3 seconds into the past, where would you go? What date? I would go to June 6th, 2018
    6·1 answer
  • How much charge does a 9.0 v battery transfer from the negative to the positive terminal while doing 45 j of work?
    6·1 answer
  • 1. The resistance of an electric device is 40,000 microhms. Convert that measurement to ohms.
    7·2 answers
  • 2.486 L is equal to:
    10·2 answers
  • What's the definition of sound?
    6·2 answers
  • In subduction, _____.
    13·1 answer
  • Monochromatic (single-wavelength) light falling on two slits 0.016 mm apart produces the fifth-order bright spot at an 8.8◦angle
    13·2 answers
  • For which medical procedure would Doppler ultrasound be most useful?
    11·2 answers
  • 1. Sodium-24 has a half-life of 15 hours. How much sodium-24 will remain in an
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!