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
pychu [463]
4 years ago
14

Which of the following is true about radiation from the sun?

Physics
1 answer:
Lelu [443]4 years ago
3 0
><span>It can travel through vacuum. 

The rays must travel in the vacuum of space between Earth's atmosphere and the sun.</span>
You might be interested in
Which one is NOT an application of heating effect of electric current ? * Required to answer. Single choice.(1 Point) Electric b
solmaris [256]

Answer:

Electromagnet.

Explanation:

Electric bulb and electric water heather are application of heating effect of electric current. The electromagnet is not the result of heating effect of electric current. The bulb gives light due to the heating effect similarly the water is heated or warmed by the heating effect of electric current.

5 0
3 years ago
HELP!!!!!!!!!!!!!!!!!!
Andrews [41]

Answer:

d.

Explanation:

4 0
3 years ago
The time it takes for one wavelength to pass a fixed point is known as:
laiz [17]
<span>The time it takes for one wavelength to pass a fixed point is known as PERIOD.

In fact, the period is defined as the time it takes a wave to make one complete oscillation: since the wavelength is the distance between two consecutive points of the wave with same shape, it means that the time it takes for one wavelength to pass a fixed point in space is exactly the period.</span>
3 0
4 years ago
What’s the difference between red blood cells and white blood cells
Lerok [7]
Red blood cells contain hermoglobin whiles white blood cells do not. Hermoglobin is what gives it its red color.
4 0
4 years ago
Read 2 more answers
The propeller of a World War II fighter plane is 2.30 m in diameter. (a) What is its angular velocity in radians per second if i
Sergio [31]

Answer with Explanation:

We are given that

Diameter of fighter plane=2.3 m

Radius=r=\frac{d}{2}=\frac{2.3}{2}=1.15 m

a.We have to find the angular velocity in radians per second if it spins=1200 rev/min

Frequency=\frac{1200}{60}=20 Hz

1 minute=60 seconds

Angular velocity=\omega=2\pi f

Angular velocity=2\times \frac{22}{7}\times 20=125.7 rad/s

b.We have to find the linear speed of its tip at this  angular velocity if the plane is stationary on the tarmac.

v=r\omega=1.15\times 125.7=144.56 m/s

c.Centripetal acceleration=\omega^2 r=(125.7)^2(1.15)=18170.56 m/s^2

Centripetal acceleration==\frac{18170.56\times g}{9.81}=1852.25 g m/s^2

7 0
4 years ago
Other questions:
  • What is a sign of genetic mutation
    10·2 answers
  • 10. You take a trip that covers 240 km and takes you 4hours to complete.What is your
    5·1 answer
  • . A projectile of mass 2 kg is fired with a speed of 20 m/s at an angle of 30° with respect to the horizontal. (a) Calculate the
    13·1 answer
  • Based on the data you found, about how many of the 100 aliens would become thin if the temperature were 35°C?
    14·1 answer
  • 3. If you roll a ball up a hill, it undergoes positive<br>acceleration. True or false<br><br>​
    6·1 answer
  • The hydrogen molecule will start to vibrate at temperatures above roughly 1000 K. At this high temperature, what is the ratio of
    14·1 answer
  • Calculate the density of helium gas at 25.0â—¦c and at a pressure of 1521 mmhg. express your answer in g/l.
    6·1 answer
  • Which one is correct:
    15·1 answer
  • What is the mass of a substance with a density of 9g/cm3 and a volume of 4cm3
    11·1 answer
  • Shorter the vibrating part more will be the pitch. How?​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!