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slavikrds [6]
2 years ago
15

100 POINTSSSS PLEASE HELP

Physics
2 answers:
Ahat [919]2 years ago
8 0

renewable resources primarily used to produce electricity wuld be those power plants that are big like a dam for hydroelectric, wind turbine for electric generation, geothermal power plant, and solar farm for electricity.


lara31 [8.8K]2 years ago
4 0
Wood, wind, sunshine,geothermal energy, biomass and water 
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A 0.125 kg hockey puck moving at 20.0 m/s is caught and held by an 85.0 kg goalkeeper at rest. After catching the puck, with wha
jenyasd209 [6]

Answer:

a

Explanation:cuz i saiad so

4 0
3 years ago
If five joules were required to move a crate in 3.7 seconds, what power was applied?
AleksAgata [21]

Answer:

The answer to your question is 1.35 Watts

Explanation:

Data

Work = W = 5 J

time = t = 3.7 s

Power = P = ?

Formula

Power is a rate in which work is done or energy is transferred over time

P = \frac{W}{t}

Substitution

P = \frac{5}{3.7}

Result

P = 1.35 W

8 0
3 years ago
The velocity of a wave is 500 m/s . The wavelength of the wave is 3.2 m . What is the frequency of the wave ?
nasty-shy [4]

Answer:

f=156.25Hz

Explanation:

v=fT

500=fx3.2

500=3.2f

divide both sides by 3.2

f=156.25Hz

6 0
2 years ago
Briana pushed a 5 kg box of dance flyers with a force of 10 N. What is the acceleration of the box?
maks197457 [2]

Answer:

Explanation:

From force =ma

a=f/m

a=10/5

a=2m/s2

8 0
2 years ago
Read 2 more answers
Once​ Kate's kite reaches a height of 50 ft ​(above her​ hands), it rises no higher but drifts due east in a wind blowing 7 ft d
Margaret [11]

Answer:

dz  = 7.136 (answer)

Explanation:

given height  for kate's kite   = 50 ft  (say y)

due to drift it move towards east =  dx = 7 ft  

string maximum length          = 107 ft ( say z)

we have to find change in z  

that is  dz

it will form a right angle triangle for x , y and z  where x is base y is height and z is hypotenuse

so we get according to Pythagoras Theorem

z^2 = x^2+y^2\\...............(i)

by derivative both side  consider y as constant

2zdz = 2xdx\\dz = {xdx }/z

from (i)  equation

x = \sqrt{z^2-y^2}

dz = \sqrt{z^2-y^2}dx/z

now put the value and find dz

dz = (\sqrt{120^2-50^2)}7/107\\  =((\sqrt{14400 -2500} )\times7)/107

after solving these  we get

dz  =\frac{109.08\times7}{107}  

dz  = 7.136 (answer)

7 0
3 years ago
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