A teacher lifted a 10 N box and placed it down. Did she do any work? Explain your answer using math

Which of the following statements is true about light? A. Light needs a medium through which to travel B. Light can not be diffr

maksim [4K]

From that ragged, motley list of statements, only 'C' is true.

6 0

3 years ago

Earth is broken into how may climate zones

Alik [6]

Three climate zones which are polar, temperate, and tropical. hope this helps

8 0

3 years ago

9. How does the length of the hypotenuse in a right triangle relate to the lengths of the legs? (2 points)

konstantin123 [22]

The pythagorean theorem addresses the length of the hypotenuse in relation to the length of the legs. The square root of the length of the hypotenuse is equal to the sum of one leg squared plus the other leg squared. In other words, A squared plus B squared equals C squared where A and B are the lengths of the legs of the triangle and C is the length of the hypotenuse.

6 0

3 years ago

Read 2 more answers

(marking brainliest) pease help asap! both of the questions are in the pdf, and please let me know which is question one and whi

REY [17]

<h2>ANSWERS </h2>

1) The relationship in between the electrical energy carriesd by the transmission wires and the amount of the heat loss in it is due to the reason that when the electricity is flown through the wires there are some resistance found in these wires which creates a disturbance in the efficient flow of electricty.Also we know that current have an heating effect when it is in motion as due to if a large amount or magnitude of electricity is flown through the transmission wires it will carry a larger heat effected and also due to the resistance is provided by the wires and so the process of heat loss takes place.

2)It is important to minimize current in transmission wires due to minimize the heat loss and resistance on flowing electric current to make the system more efficient 

 3)Given Resistance = 250 ohms 

Electric potential = 150 volts 

so we know Power = 

volt^2/Resistance = 

=(150^2/250)(ohms/volts)

=(22500/250)watt = 90 watt 

4)Heat energy (H) = Power(P)×Time(t)

4)Heat energy (H) = Power(P)×Time(t)= (90×2)joules = 180 joules

Hope it helps

4 0

3 years ago

15 PTS! HELP! BRAINLIEST!

vodka [1.7K]

I cant do all but I can do number 4
When force moves ur leg u start skatin and when that happenes ur using a lot of force to move

3 0

3 years ago