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
jek_recluse [69]
3 years ago
13

Calculate the focal length (in m) of the mirror formed by the shiny bottom of a spoon that has a 3.40 cm radius of curvature. m

(b) What is its power in diopters? D
Physics
1 answer:
Nana76 [90]3 years ago
5 0

Answer:

The power of the mirror in diopters is 58.8 D

Explanation:

Given;

radius of curvature of the spoon, R = 3.4 cm = 0.034 m

The focal length of a mirror is given by;

f = \frac{R}{2} \\\\f = \frac{0.034}{2} \\\\f = 0.017 \ m

The focal length of the mirror is 0.017 m

(b) The power of the mirror is given by;

P = \frac{1}{f}

where;

P is the power of the mirror

f is the focal length

P = \frac{1}{f}\\\\P= \frac{1}{0.017}\\\\P = 58.8 \ D

Thus, the power of the mirror in diopters is 58.8 D

You might be interested in
The graph shows a heating curve for water. Between which points on the graph would condensation occur?​
Radda [10]
I would have to see the graph.. but by looking at one one online, they are between points D and E.

4 0
3 years ago
Read 2 more answers
Physical properties of minerals graphic organizer
Nadusha1986 [10]
The answer is in the attachment
<span>...........................................</span>

4 0
3 years ago
Mr. Galonski loves to use the Electromagnetic Spectrum. Create a scenario in which Mr. Galonski is using waves from the electrom
Anestetic [448]

Answer:

The Scenario:

On a normal Sunday afternoon Mr. Golanski is sitting in his living room reading his book. He decides after a while to turn on the Television to see what’s on the news, (Mr. Golanski is using Radio waves when he turns his television on by signaling the TV from his remote control). After a few hours Mr. Golanski decides it’s time to have dinner. He heats up a quick meal in his microwave because he doesn’t have the patience for cooking. (He is using microwave radiation to heat his food because water molecules in food absorb the radiation). He sits down for his meal, and halfway through he starts to choke! In a panicked frenzy he runs to his bathroom to try and dislodge the obstacle from his throat. By doing so he switched on the fluorescent lights in his bathroom exposing himself to small amounts of ultraviolet radiation. (Fluorescent lights absorb UV radiation and transmit visible light along with small amounts of UV light). Unable to dislodge the obstacle from his throat Mr. Golanski seeks help from his neighbor who drives him straight to the ER. To treat him properly the physicians opt for a fluoroscopy to examine Mr. Golanski’s esophageal tract. (Thus he is making use of X-ray imaging to obtain a visual of his internal esophageal structure to check for the obstruction). Once treated and discharged from the hospital Mr. Golanski returns home grateful to have survived this ordeal with minimum damage.

Explanation:

The Electromagnetic Spectrum is the range of frequencies and wavelengths for different light waves. They range with increasing frequency from Radio waves, to Microwaves, to Infrared waves, to Visible waves, to Ultraviolet waves, to Infrared waves, to X-rays, and to Gamma rays. Several of which we use in our daily lives such as Radio waves when operating our television or using our cellular phones. We also use microwaves to heat our food or for communication with satellites. We are also exposed to natural Ultraviolet radiation from the sun; however, we can also get exposed to other forms such as from certain types of light bulbs. We see visible light in the form of all the colors we can detect around us. We make use of x-rays for imaging techniques widely used in medicine for diagnostics, as well as Infrared waves in our home security systems. The electromagnetic spectrum is always used as a part of our everyday life.

7 0
3 years ago
According to newtons law of action reaction what is the most likely to occur if to ice skaters with approximately the same mass
Free_Kalibri [48]

Answer:

They would keep on moving but unless being acted upon or stop slowly because of the friction

Explanation:

7 0
3 years ago
True or False: The energy increase of an object acted on only by a gravitational force is equal to the product of the object's w
tamaranim1 [39]

Answer:

False.

Explanation:

The statement shown in the question above is false and this can be confirmed by Newton's law on universal gravitation. According to Newton, the gravitational force exerted on any body is proportional to its weight, but the distance that the object travels when falling is disproportionate. In addition, if the force resulting from the weight of the object and its displacement has an angle of 0º, the weight force of that object will provide an increase in kinetic energy.

4 0
3 years ago
Other questions:
  • A truck filled with supplies sets out across the country at 9 A.M. It is traveling at a constant speed of 80.0 km/h. Two hours l
    6·1 answer
  • What type of energy system (open, closed or isolated) is represented by the picture and why?
    5·1 answer
  • The law of reflection is quite useful for mirrors and other flat, shiny surfaces. (This sort of reflection is called specular re
    8·1 answer
  • You run a race with your friend. At first you each have the same kinetic energy, but then you find that she is beating you. When
    14·1 answer
  • What’s the surface temperature of earth
    10·1 answer
  • qual o nome da posição que o planeta tem maior velocidade? este ponto é mais próximo ou mais afastado do sol?
    6·1 answer
  • Give an example of the of conservation of momentum
    10·1 answer
  • "What is the energy density (energy per cubic meter) carried by the magnetic field vector in a small region of space in a EM wav
    12·1 answer
  • A 20 kg sled stars at the top of a hill which is 10 m above the bottom and slides a distance of 50 m, ending at the bottom of th
    15·1 answer
  • People travel from all over the world to see more than 30 glaciers at Glacier National Park in Alaska.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!