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
Tema [17]
3 years ago
15

When you go out into the sun, the UV light can give you a tan. UV light has a frequency of 7.89 x 1014 Hz. What is the wavelengt

h of UV light?
Please use 3 x 108 m/s for the speed of light (c).
Physics
1 answer:
Olin [163]3 years ago
6 0

Answer:

Explanation:

Formula and givens

  • λ = c / f
  • λ is the wavelength
  • c = the speed of light
  • f = the frequency
  • c = 3*10^8
  • f = 7.89 * 10^14

λ = ?

Solution

λ = 3*10^8 / 7.89*10^14

λ = 3*10^8/7.89*10^14

λ = 2.36 * 10^7

λ = 236 nanometers. What you use as your solution depends on what what you have been taught.

You might be interested in
Defined the term electromagnetic induction and explain how a generator uses electromagnetic induction​
tatuchka [14]

Is the production of electricity by magnetic field.

There are two types of generator which is <u>D</u><u>.</u><u>C</u><u> </u>generator . And A.C <em>g</em><em>e</em><em>n</em><em>e</em><em>r</em><em>a</em><em>t</em><em>o</em><em>r</em>

A.C gen consist of rectangular coil,brushes and permanent magnet

According to the external force mechanical energy used to rotate coil, due to magnetic flux produced by permanent magnet create induced current, this is to according to flemmings right hand rule of electromagnetic induction the rotating coil will produce current

I hope that will help.

8 0
3 years ago
A 22.0 kg child slides down a slide that makes a 37.0° angle with the horizontal. (a) What is the magnitude of the normal force
patriot [66]

Answer:

(a) 172.185 N

(b) 53^{\circ}

Solution:

As per the question:

Mass of the child, m = 22.0 kg

Angle, \theta = 37.0^{\circ}

Now,

(a) The magnitude of the normal force exerted by the slide on the child:

F_{N} = mgcos\theta

F_{N} = 22\times 9.8cos37^{\circ} = 172.185\ N

Now,

(b) The angle from the horizontal at which the force is directed is:

90^{\circ} - 37^{\circ} = 53^{\circ}

6 0
3 years ago
3. Forces do ________ always cause an object to move.<br> need this ASAP
Finger [1]

Answer:

not

Explanation:

5 0
3 years ago
Read 2 more answers
A flask that weighs 345.8 g is filled with 225 mL of carbon tetrachloride. The weight of the flask and carbon tetrachloride is f
KatRina [158]

Answer:

<em>Well, I think the best answer will be is </em><em>1.59 g/mL Good Luck!</em>

6 0
3 years ago
What do you need to calculate the mechanical advantage of a block and tackle
Ira Lisetskai [31]
In a block and tackle, some friction in the pulleys will reduce the mechanical advantage of the machine. To include friction in a calculation of the mechanical advantage of a block and tackle, divide the weight of the object being lifted by the weight necessary to lift it.

Hope this helps
7 0
2 years ago
Read 2 more answers
Other questions:
  • How do we know that white light is composed of a rainbow of colors?
    5·1 answer
  • You are the science officer on a visit to a distant solar system. Prior to landing on a planet you measure its diameter to be 1.
    8·1 answer
  • Going around a ferris wheel without stopping is an example of _____ circular motion<br>(apex)
    11·2 answers
  • An explosion that destroys a massive star is called a
    14·1 answer
  • A uniform cylinder of radius 40 cm and mass 28 kg is mounted so as to rotate freely about a horizontal axis that is parallel to
    13·1 answer
  • A flywheel flows from 250rpm to 150rpm in 4.2 seconds. How many revolutions occur during this time ​
    5·1 answer
  • Plz help owo
    15·1 answer
  • Two birds sit at the top of two different trees 17.8 feet away from one another. the distance between the first bird and a birdw
    5·1 answer
  • A 100 W sodium lamp radiates energy uniformly in all directions. The lamp is located at the centre of a large sphere that absorb
    6·1 answer
  • A 500-W heating coil designed to operate from 110V is made of Nichrome wire 0.500 mm in diameter. (b) What If? Now consider the
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!