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Ivenika [448]
3 years ago
9

What is an Advantage and Dis Advantage of energy?

Physics
2 answers:
kifflom [539]3 years ago
5 0

Answer:

Advantage and Dis Advantage of energy is discussed below.

Explanation:

Advantage of Energy

  • Environmental and commercial advantages of using renewable energy incorporate: Producing energy that creates no greenhouse gas discharges from relic fuels and diminishes some kinds of air pollution.

Disadvantage of Energy

  • Higher upfront price. While you can conserve bills by using renewable energy, the technologies are typically more costly upfront than conventional energy dynamos.

Inga [223]3 years ago
4 0
The more energy you have the more things you might be able to do but it may be problematic when trying to go to sleep or trying to calm down, believe me, I know.
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A train travels 79 kilometers in 2 hours, and then 77 kilometers in 3 hours. What is its average speed?
koban [17]
Average speed=total distance traveled/time. Total distance=the sum of the two short distances=79*2+77*3=389 km. Total time used to travel is 2+3=5 hr. Average speed is 389/5=77.8 km/hr.
4 0
3 years ago
SOMEONE PLEASE HELP!!
Arisa [49]

Hello!

\large\boxed{\text{C. 7,350,000 J}}

Use the equation:

PE = mgh

Where:

m = mass of the object (kg)

g = acceleration due to gravity (≈9.8 m/s)

h = height above ground (m)

Plug the given values into the equation:

PE = 7500 · 9.8 · 100

PE = 7,350,000 Joules.

7 0
3 years ago
Find the unknown mass of the block 1 needed to balance the bar. Assume that the mass of the bar is negligible. Block 1 is locate
Natasha2012 [34]

Answer:

Incomplete question: The masses of the blocks m₂ = 1.5 kg and m₃ = 2 kg

Explanation:

Given data:

L₁ = length = 0.85 m

L₂ = 0.25 m

L₃ = 0.5 m

m₂ = 1.5 kg

m₃ = 2 kg

Question: Find the unknown mass of the block 1 needed to balance the bar, m₁ = ?

The torque is zero (intermediate point of the bar)

-m_{1} gL_{1} +m_{2} gL_{2} +m_{3} gL_{3} =0

Is negative because mass 1 is to the left of the coordinate system (see the diagram)

m_{1} =\frac{m_{2} gL_{2}+m_{3} gL_{3}  }{L_{1} } =\frac{(1.5*0.25)+(2*0.5)}{0.85} =1.6176kg

4 0
3 years ago
PLEASE HELP REALLY WOULD APPRECIATE THE HELP;) A positively charged glass rod is bought close to a suspended metal needle. What
Kisachek [45]

Answer:

Explanation:

attracted

8 0
2 years ago
The two properties of an electron that cannot be known exactly at the same time are the ____________________.
enyata [817]
Position and momentum.

This is Heisenberg's Uncertainty Principle:
Δx Δp ≥ h ÷ 4π,   where Δx is the change in position, Δp is the change in momentum, and h is Planck's Constant.
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3 years ago
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