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Serga [27]
3 years ago
7

sunlight, wind, and running water are essentially "free." Yet renewable energy sources are a very small part of our energy consu

mption. Why is this?
Physics
2 answers:
dimulka [17.4K]3 years ago
7 0
The heat and energy of coal burning is more easier and more efficient to turn into electricity than any method using renewable resources. 
lilavasa [31]3 years ago
4 0

Explanation:

oop hello UwU OwO

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Describe the stratosphere.
Leviafan [203]

1. The stratosphere is above the troposphere. This layer of the atmosphere is where planes fly. At the top of the stratosphere, there is a ozone layer.

2. The mesosphere is above the stratosphere. Temperatures drastically drop in the mesosphere. It is the middle layer of the atmosphere.

3. Here are the layers of the atmosphere:

  • Troposphere
  • Stratosphere
  • Mesosphere
  • Thermosphere
  • Exosphere

Hope this helps you!

8 0
3 years ago
what are two properties that lead to electromagnetic interactions? pls help I'm so confused and cant find the answer anywhere!!
MArishka [77]

Answer:

Electric charge. A fundamental property that leads to the electromagnetic interactions among particles that make up matter.

8 0
3 years ago
If there is a negative sign in front of the Hooke's Law equation, what does the force, F, represent?
SashulF [63]

Answer:

Hooke's law, given by F=-kx is denoted with a negative sign to regard that the direction of restoring force that occurs opposite in direction of the force that caused the displacement x. F represents the force required to create a spring displacement of x.

Explanation:

As with many things in physics, the negative sign represents direction. In this case, after a spring is displaced a distance of x from equilibrium, the restoring force created by the spring will be in opposite direction of the force applied to move the spring there, represented by F.

6 0
3 years ago
A bathtub has 62.7 kg of water at 31.0
Bogdan [553]

m = mass of water in bathtub = 62.7 kg

T_{ti} = initial temperature of water in tub = 31 c

M = mass of water added = ?

T_{ai} = initial temperature of water added = 76 c

T = final equilibrium temperature of the system = 40.3 c

c = specific heat of water = 4186

Using conservation of heat

Heat gained by water in tub = Heat lost by water added

m c (T - T_{ti}) = M c ( T_{ai} - T)

m (T - T_{ti}) = M ( T_{ai} - T)

(62.7) (40.3 - 31) = M (76 - 40.3)

M = 16.3 kg

5 0
3 years ago
*Physical Science* *E2020* *Unit Test*
vladimir2022 [97]

i think its b

hope this helps

5 0
3 years ago
Read 2 more answers
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