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jenyasd209 [6]
3 years ago
6

How does the toaster serve as an example of Convection energy transfer?

Physics
1 answer:
blsea [12.9K]3 years ago
3 0
Check bing for the answer
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When a wave hits a boundary, what determines how much is reflected and refracted?
Dafna1 [17]

Answer:

Angle and speed of wave

Explanation:

The two phenomena involved here are:

- Reflection: reflection occurs when a light wave bounces off the interface between two mediums, returning into the first medium, at a different angle

- Refraction: refraction occurs when a light wave passes through the interface between the two mediums, passing into the second medium, changing direction and speed

The coefficient of reflection tells what is the fraction of the wave that is reflected over the total; it is calculated as

R=|\frac{n_1 cos \theta_1 - n_2 cos \theta_2}{n_1 cos \theta_1 + n_2 cos \theta_2}|^2

where

n_1, n_2 are the index of refraction of the 1st and 2nd medium

\theta_1, \theta_2 are the angle between the ray of light  and the normal to the interface in the 1st and 2nd medium

From the formula, we see that the % of wave that is reflected depends on the angle and the index of refraction. Moreover, the index of refraction is related to the speed of the wave by:

n=\frac{c}{v}

where c is the speed of light in a vacuum and v the speed of light in the medium; therefore, the correct answer is

Angle and speed of wave

5 0
3 years ago
Computers A and B implement the same ISA. Computer A has a clock cycle time of 200 ps and an effective CPI of 1.5 for some progr
lesya692 [45]

Answer:

Computer A is 1.41 times faster than the Computer B

Explanation:

Assume that number of instruction in the program is 1

Clock time  of computer A is CT_{A} =200 ps

Clock time  of computer B is CT_{B} =250 ps

Effective CPI of computer A is CPI_{A} =1.5

Effective CPI of computer B isCPI_{B} =1.7

CPU time of A is

CPU_{time}=instructions \times CPA_{A} \times CT_{A}\\CPU_{time}=1 \times 1.5 \times 200=300 sec

CPU time of B is

CPU_{time}=instructions \times CPA_{B} \times CT_{B}\\CPU_{time}=1 \times 1.7 \times 250=425 sec

Hence Computer A is Faster by \frac{425}{300} =1.41

Computer A is 1.41 times faster than the Computer B

4 0
3 years ago
The banyan tree is a multicellular organism with differentiated cells. describe how this organism's specialized parts have helpe
san4es73 [151]
Vascular tissue is responsible for transporting water and nutrients in plants.The Vascular tissue consists of the Xylem and the Phloem. The main function of the Xylem is to transport water and minerals throughout all parts of the plant. Phloem on the other hand is responsible for transporting organic molecules that are larger in size. The vascular system, consisting on the Xylem and the Phloem runs from the roots of the plats through the branches and upto the leaves. It controls the total transportation of the water and nutrients.
<span>The long tubes that carry water and sugar from the leaves to the rest of the plat are known as phloem. The Xylem on the other hand carries water and small minerals from the root through the branches to the leaves for producing glucose and oxygen. The xylem and phloem are two most important parts of plants that are required for the survival of the plant. Water is mainly carried by the Xylem but some amount of water goes through the phloem for transporting the glucose that is manufactured. The process of photosynthesis is highly dependent on Xylem and Phloem.<span> </span></span>

7 0
3 years ago
As an adult, what is the best way to remain healthy?
Zigmanuir [339]
1. Eat a balanced diet and regular exercise. This is the best way because eating right and exercising are is more beneficial than just exercising.
4 0
3 years ago
Read 2 more answers
A material which allows fewer electrons to travel through it has a ___?
evablogger [386]
I believe it’d have a higher resistance because if it had a lower resistance more electrons could travel threw it
4 0
3 years ago
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