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guajiro [1.7K]
3 years ago
13

How to reduce the energy loss from the study lamp?​

Physics
1 answer:
AnnZ [28]3 years ago
7 0

Stop using it all the time for some useless things.

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An 11,000-watt radio station transmits at 880 kHz. Calculate the energy of a single photon at the transmitted frequency.
prisoha [69]

The energy of a single photon at the transmitted frequency is \bold{5834.4 \times 10^{-31} \mathrm{J}}

Answer: Option b

<u>Solution:</u>

Energy of photon is given as E=\frac{h c}{\lambda}

Where  c is the velocity of Light \left(3 \times 10^{8} m / s\right)

h is planck's constant  \left(6.63 \times 10^{-34}\right)

λ is the wavelength of photon  

Energy of photon can be rewritten as E=h \times f

Where f is the frequency of photon  

Frequency of photon is obtained by dividing velocity of light by wavelength of photon.

f=\frac{c}{\lambda}

E=6.63 \times 10^{-34} \times 880 \times 10^{3}=5834.4 \times 10^{-31} \mathrm{J}

8 0
3 years ago
Visualizing the body in the position is significant because all observers have a common point of reference when describing and d
FromTheMoon [43]

Visualizing the body in the anatomical position is significant because all observers have a common point of reference when describing and discussing its region.

<h3>What is the anatomical position?</h3>
  • Anatomical position, also known as conventional anatomical position, refers to the body's position while it is standing erect and looking forward, with each arm hanging on either side of the body and palms facing forward.
  • The legs are parallel, with the feet level on the floor and forward facing.
  • When explaining particular anatomical words and locations in human anatomy and physiology, the anatomical position is a standard point of reference.
  • Visualizing the body in its anatomical location is important because it provides a single point of reference for all observers when describing and discussing its region.

As the description itself says, visualizing the body in its anatomical location is important because it provides a single point of reference for all observers when describing and discussing its region.

Therefore, visualizing the body in the anatomical position is significant because all observers have a common point of reference when describing and discussing its region.

Know more about the anatomical position here:

brainly.com/question/5029605

#SPJ4

The question you are looking for is given here:

Visualizing the body in the _____________ is significant because all observers have a common point of reference when describing and discussing its region.

6 0
2 years ago
Your question: "the picture shows a professional diver with a mass of 93 kg from a 25 m high cliff. Earths Gravity is acting on
GuDViN [60]

When we see the words "Which statement ... ", we know right away that there
will be a list of choices, and we're expected to select our answer from that list.
Strangely, the list of answer-choices for this question has been lost.

Similarly, when we see the words "The picture shows ... ", it's hard to fight
the impulse to look around.  In the present situation, <em>that's</em> missing too.

If the diver is just standing there, then the reaction force provided by the cliff
against his feet must be exactly equal to his weight.  If the vertical forces acting
on the soles of his feet were not balanced, then his feet would be accelerating
vertically.

His weight is  (mass) x (gravity) =

                     (93 kg) x (9.8 m/s²) = <em>911.4 newtons</em> (about 205 pounds) .

That's also the strength of the upward reaction force provided by the cliff.


6 0
4 years ago
A force F acting on an object of mass m causes a displacement d. The angle between these two vectors is Θ. The work W done on th
777dan777 [17]
Work:
W= \int\limits^b_a {F.} \, ds

F: force
ds: displacement

Assuming the work is constant:

W= \int\limits^b_a {F.} \, ds =  F . d = F * cos\theta * d

d displacement


4 0
3 years ago
A 78 N block is supported by a spring whose constant is 12 N/m. Calculate the elongation of the spring under this load.
MrRa [10]

Answer:

a 6.5 m

Explanation:

f = kx =  > x =  \frac{f}{k}  =   \frac{78}{12}  = 6.5 m

5 0
3 years ago
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