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
umka21 [38]
3 years ago
13

The light bulb in your room is not very bright. You want to use a concave mirror to direct its illumination into a tight, parall

el beam of light for reading. The radius of curvature of the mirror is 30 centimeters. At what distance from the mirror should you place the light bulb to produce this parallel light beam
Physics
1 answer:
ehidna [41]3 years ago
5 0

A point source is to be used with a concave mirror to produce a beam of parallel light. The source should be placed midway between the center of curvature and the mirror. To solve this question you have to draw a ray diagram. Apply the mirror equation to determine the image distance and finally make sure that the first two steps are consistent with each other.


<span>I hope this helps, Regards.</span>

You might be interested in
What do we get from the area between the speed-time graph of a body and the time axis?​
maxonik [38]

Explanation:

The area between the speed-time graph f a body and time axis measures the distance travelled by the body

7 0
3 years ago
Forces normal to a particle's displacement do no work.
snow_tiger [21]

Answer:

Explanation:

The work done is defined as the product of force applied in the direction of displacement and the displacement.

W = F x d x Cosθ

where, F is the force applied, d be the displacement and θ be the angle between the displacement and force.

For the normal forces, the angle between the displacement and the force applied is 90 degree, and the value of Cos 90 is zero, so the work done is zero.

3 0
3 years ago
The energy of an electromagnetic wave is related to its amplitude. <br> a. True<br> b. False
barxatty [35]
The answer to your question is True
6 0
3 years ago
Read 2 more answers
Which of the following is not a characteristic of major depressive disorder?
Alex787 [66]

D chest tightness

I experienced these the past few days...

but hoped I helped ^_^

6 0
3 years ago
Read 2 more answers
If a car traveling at 60 km/h will skid 20m when its brakes lock, how far will it skid if it's traveling at 120 km/h when it's b
pantera1 [17]
<span>If a mouse and an elephant both run with the same kinetic energy, can you say ... 3. if a car traveling at60 km/h will skid 20 m when its brakes lock, how far will it skid if it is traveling at 120 km/h when its brakes lock? (This question is typical on ...</span><span>just get this and figure it out and this is your answer </span>
7 0
3 years ago
Other questions:
  • In an experiment, 1 mol of propane is burned to form carbon dioxide and water.
    8·1 answer
  • If F1 is the magnitude of the force exerted by the Earth on a satellite in orbit about the Earth and F2 is the magnitude of the
    11·1 answer
  • The formation of condensation on a glass of ice water causes the ice to melt faster than it would otherwise. If 8.55 g of conden
    13·1 answer
  • Consider a system of a cliff diver and the earth. the gravitational potential energy of the system decreases by 28,000 j as the
    8·1 answer
  • PLEASE HELP ME
    7·1 answer
  • Jonah observes the Sun through a special filtered telescope during a total solar eclipse. He sees a red ring and a faint white r
    6·2 answers
  • Of the following reactions, which is a fusion reaction?
    7·1 answer
  • A current of 0.2A flows through a component with a resistance of 40ohms calculate the potential difference
    5·1 answer
  • Which macronutrient is made up of carbon and hydrogen elements joined together in long groups called hydrocarbons?
    12·1 answer
  • The question and answer options are in the photo!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!