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polet [3.4K]
3 years ago
13

What is one type of renewable energy source?

Physics
2 answers:
Diano4ka-milaya [45]3 years ago
8 0
Currently are :
Solar energy. Wind energy. Hydro energy. Tidal energy.
erik [133]3 years ago
6 0

Answer:

Solar energy

Explanation:

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The floor of a railroad flatcar is loaded with loose crates having a coefficient of static friction of 0.320 with the floor. If
mart [117]

Answer:  29.50 m

Explanation: In order to calculate the higher accelation to stop a train  without moving the crates inside the wagon which is traveling at constat speed we have to use the second Newton law so that:

f=μ*N the friction force is equal to coefficient of static friction  multiply the normal force (m*g).

f=m.a=μ*N= m*a= μ*m*g= m*a

then

a=μ*g=0.32*9.8m/s^2= 3.14 m/s^2

With this value we can determine the short distance to stop the train

as follows:

x= vo*t- (a/2)* t^2

Vf=0= vo-a*t then t=vo/a

Finally; x=vo*vo/a-a/2*(vo/a)^2=vo^2/2a= (49*1000/3600)^2/(2*3.14)=29.50 m

5 0
2 years ago
What r three positive results of a variation within a population that occur due to natural selection
Phoenix [80]

Answer:

Traits, evolution, adaptive

4 0
3 years ago
Which of the following is a TRUE statement?
pshichka [43]

Answer:

e. All of these statements are false.

Explanation:

As we know that heat transfer take place from high temperature to low temperature.

It is possible to convert all work into heat but it is not possible to convert all heat in to work some heat will be reject to the surrounding.

The first law of thermodynamics is the energy conservation law.

Second law of thermodynamics  states that it is impossible to construct a device which convert all energy into work without rejecting the heat to the surrounding.

By using heat pump ,heat can transfer from cooler body to the hotter body.

Therefore all the answer is False.

5 0
3 years ago
It is important to maintain septic systems in order to
Andreyy89
It is important to maintain septic systems in order to <span>prevent untreated sewage from contaminating groundwater</span>
3 0
3 years ago
Which statement correctly describes the electrons in a water molecule?. . A.Which statement correctly describes the electrons in
exis [7]

The statement “Electrons are pulled closer to the oxygen atom” correctly describes the electrons in a water molecule. The correct answer between all the choices given is the second choice or letter B. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

4 0
3 years ago
Read 2 more answers
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