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Deffense [45]
3 years ago
6

An insulated lunch bag keeps food warm by

Physics
2 answers:
TiliK225 [7]3 years ago
4 0

slowing the transfer of thermal energy from the food inside the bag to the air outside the bag

Norma-Jean [14]3 years ago
3 0
The answers to the question above are "D) slowing the transfer of thermal energy from the food inside the bag to the air outside the bag" which is how an insulated food bag keeps the food warm. The "insulate" word means "to protect something from losing heat". Thus, the function of the insulated food bag is related<span> to its name.</span>
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If positive work is being done to an object...
zubka84 [21]

Answer:

Being good

Explanation:

7 0
3 years ago
Examples of the period, frequency, speed of a wave in a sentence?
Kamila [148]
Hi There! :)

<span>Examples of the period, frequency, speed of a wave in a sentence?

                                Examples

•</span><span>He indicated the space behind him with a </span>wave<span> of a hand.
</span><span>
•</span><span>On land only the grass and trees </span>wave, but the water itself is rippled by the wind.

•<span>But wherever it may turn there always will be the </span>wave<span> anticipating its movement.</span>

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6 0
3 years ago
Light is shining perpendicularly on the surface of the earth with an intensity of 680 W/m^2. Assuming that all the photons in th
andrew11 [14]

Answer:

3.066×10^21  photons/(s.m^2)

Explanation:

The power per area is:

Power/A = (# of photons /t /A)×(energy / photon)

E/photons = h×c/(λ)

photons /t /A = (Power/A)×λ /(h×c)  

photons /t /A = (P/A)×λ/(hc)

photons /t /A = (680)×(678×10^-9)/(6.63×10^-34)×(3×10^-8)

                      = 3.066×10^21

Therefore, the number of photons per second per square meter 3.066×10^21  photons/(s.m^2).

4 0
3 years ago
The difference between experimental technique and procedure
kaheart [24]
A procedure is all the steps used to do an experiment in order. 
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<span>the procedure is all the steps of the experiment.</span>
4 0
3 years ago
The real advantage to hydrostatic weighing is that it __________.
katovenus [111]

The real advantage to hydrostatic weighing is that it gives one of the most accurate measurements of body fat.

7 0
3 years ago
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