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tekilochka [14]
3 years ago
8

I need help on my physics homework number 2

Physics
1 answer:
Mademuasel [1]3 years ago
5 0
If it's in motion in the bottom it's called kinetic energy. Which means energy in motion
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A spring of spring constant k is attached to a support at the bottom of a ramp that makes an angle θ with the horizontal. A bloc
Nikitich [7]

Answer:

x=\frac {kd^{2}}{2(mgsin\theta +\mu_{k}mgcos\theta)}

Explanation:

From the law of conservation of energy

Energy lost  by the spring, W=Kinetic energy gained, KE+Potential energy gained, PE+Work done by friction, Fr

0.5kd^{2}=0.5mv^{2}+mgLsin\theta+\mu_{k}mgcos\theta x

x(mgsin\theta+\mu_{k}mgcos\theta)=0.5kd^{2}

x=\frac {kd^{2}}{2(mgsin\theta +\mu_{k}mgcos\theta)}

The required distance from A to B is x=\frac {kd^{2}}{2(mgsin\theta +\mu_{k}mgcos\theta)}

5 0
3 years ago
What is a wave called that moves up and down
charle [14.2K]
Transverse waves is what its called
7 0
4 years ago
Read 2 more answers
A 100 kilogram person acquires a velocity of 15 meters per second down a ski slope.What is the skier's kinetic energy?
azamat

11250J

Explanation:

Given parameters:

Mass of the person = 100kg

Velocity = 15m/s

Unknown:

Kinetic energy  = ?

Solution:

The kinetic energy of a body is energy due to the motion of the body.

 Kinetic energy = \frac{1}{2} m v²

    m is the mass of the body

    v is the velocity

  Substituting the parameters:

     

 K. E =  \frac{1}{2} x 100 x 15² = 11250J

Learn more:

Kinetic energy brainly.com/question/6536722

#learnwithBrainly

4 0
3 years ago
Which of the following solves a known problem with wind energy?
Ahat [919]

Answer:

As with all energy supply options, wind energy can have adverse environmental impacts, including the potential to reduce, fragment, or degrade habitat for wildlife, fish, and plants. Furthermore, spinning turbine blades can pose a threat to flying wildlife like birds and bats.Although wind power plants have relatively little impact on the environment compared to conventional power plants, concern exists over the noise produced by the turbine blades and visual impacts to the landscape. Wind plants can impact local wildlife. Birds have been killed by flying into spinning turbine blades.

7 0
3 years ago
By remilitarizing Germany, Hitler violated
stiv31 [10]
By remilitarizing Germany, Hitler violated the treaty of Versailles. So the correct answer is D. 

The treaty of Versailles was signed after the end of the first World war and among its main points was that Germany would not remilitarize again. This is what Hitler did and violated the point.  
5 0
3 years ago
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