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pickupchik [31]
3 years ago
11

Conversion of the sun’s energy from fossil fuels into electricity does not involve:

Physics
1 answer:
IgorC [24]3 years ago
3 0
B. wind. 

Sun (solar) --> plants (photosynthesis) --> cola (chemical) --> heat (combustion) --> steam --> turbine (kinetic) --> generator (electric)

There is no wind. 
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3 years ago
A 40.0 -kg box initially at rest is pushed 5.00 m along a rough, horizontal floor with a constant applied horizontal force of 13
Irina18 [472]

The work done by the gravitational force = 0

Given the mass of the box = 40 kg

The box is initially at rest.

Distance moved by the applied force = 5m

Force applied = 130 N

Co-efficient of friction between the box and floor = 0.3

The box is moved only in the horizontal direction by the applied force.

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3 0
2 years ago
What are the characteristics of high energy wave lengths
Darya [45]
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3 0
3 years ago
When a projectile reaches the highest point the vertical component of the acceleration is:
Mazyrski [523]

Answer:

The acceleration is g.

Taking the upward direction as positive

V = Vy y - 1/2 g t^2

Taking the downward direction as positive

V = -V y + 1/2 g t^2

One can choose either direction as positive, but the acceleration is

the same as g (it is g) while the projectile is in the air.

6 0
3 years ago
How much energy is stored in a spring with a spring constant of 390 N/m if the spring is compressed a distance of 0.45 m from it
masya89 [10]
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Answer=79J (first option)
4 0
3 years ago
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