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Olegator [25]
1 year ago
12

Please answer and ill give brainliest

Physics
1 answer:
11111nata11111 [884]1 year ago
4 0

I think least electricity is used between probably 7-8a.m. and 4-5p.m.

This is because, around those times, the suns already out. Depending on how sunny it is, it may not be as cold as all the other times of the day. And by then, buildings are typically already warmed all up. Everybody's body heat also may play a factor in buildings. ( if there is a ton of people )

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( Just answer 1 & 2) Please help! This is the last thing I have to do. I will mark brainliest asap!!
natima [27]

Answer:

1. Formula = distance/time

D= 112.0 meters, time =4 secs

Speed = d/t =112.0/4

= 28m/s

2.Formula = distance/time

D= 1/4 x 16093.44 m

= 402.35m

Time = 15secs

Speed= d/t

= 402.35/15

=26m/s

7 0
3 years ago
Can Someone Please Help Me For 10 Points.
Natalija [7]

Answer: C

Explanation: The warm, wet air in a low pressure system has risen up and cooled down.

Please give Brainliest if you can!

4 0
2 years ago
4. An archer pulls a bowstring back 0.440 m, and the spring constant of the bow is 545 N/m.
mixer [17]

Answer: (a)part:545nm multiply by 0.440m=239.8JEWELS(J)

(B):1/2MULTIPLY BY MVSQUARE(APPLY THE FORMULA OF KINETIC ENERGY)REARANGE THE FORMULA,V=2.13MS

Explanation:

SO FOR PART A, IN ORDER TO CALCULATE THE WORK DONE YOUR SUPPOSE TO APPLY THE FORMULA FORCE MULTIPLY BY DISTANCE WHICH IS THE FORMULA FOR WORK DONE,IN THIS SCENARIO YOU HAD A FORCE OF 545NM AND A DISANCE OF 0.440,SO I ORDER TO FIND THE WORK DONE WE MULTIPLIED THEM BOTHE ACCORDING TO THE FORMULA AND GOT THE ANSWER.

FOR PARTB,I JUST SIMPLY APPLIED THE FORMULA FOR KINETIC ENERGY AND SIMPLY REARRANGED IT IN ORDER TO FIND THE VELOCITY.I MADE V THE SUBJECT OF THE FORMULA.

3 0
1 year ago
The critical angle for total internal reflection for cubic zirconia surrounded by air is 27.0°. Calculate the polarizing angle f
Anna11 [10]

Answer:

Polarizing angle, \theta_{P} = tan^{- 1}{2.2} = 65.56^{\circ}

Given:

Critical angle, \theta_{cr} = 27^{\circ}

Solution:

Now, in Total Internal Reflection (TIR), the critical angle for cubic zirconia is given by:

sin\theta_{cr} = \frac{1}{\mu_{Z}}                      (1)

where

{\mu_{Z} = refractive index of zirconia

From eqn (1):

\mu_{Z} = \frac{1}{sin\theta_{cr}}

\mu_{Z} = \frac{1}{sin(27^{\circ})} = 2.2

Now, the angle of polarization is given by:

tan\theta_{P} = \mu_{Z}

Therefore,

\theta_{P} = tan^{- 1}{2.2} = 65.56^{\circ}

8 0
2 years ago
Instructions:Select the correct answer. A meteor is approaching Earth. Which statement about its motion is true? The meteor trav
Lynna [10]
<span> The meteor accelerates after it is brought into earths force field 

</span>
3 0
3 years ago
Read 2 more answers
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