How can a soccer ball and a small tennis ball bouncing relates to newtons first law interita?

Explain how fossil fuels are used to produce electricity?

pentagon [3]

<u>Answer</u>

Fossils are remains from animals and plants. They are embedded in rock and preserved in petrified form.

In a fossil fuels power plant carbon fuels such as oil, coal and gas are burnt to generate steam that are used to turn large turbines that generate electricity.

These turbines turn magnetic fields inside conductor inducing a large current in them.

Fossils fuels are much reliable as they can be used for a long period of time.

8 0

3 years ago

What is the magnitude of the electric field at the point if the electric potential in the region is given by V 2.00xyz2, where V

Hatshy [7]

Answer:

Electric field at a point ( x , y , z) is $E=-2yz^2-2xz^2-4xyz$ .

Explanation:

Given :

Electric potential in the region is , $V = 2xyz^2\ .$

We need to find the electric field .

We know , electric field , $E=-\dfrac{dV}{dr}$ { Here r is distance }

In coordinate system ,

$E=-\dfrac{dV}{\delta x }-\dfrac{dV}{\delta y }-\dfrac{dV}{\delta z }$ { $\delta$ is partial derivative }

Putting all values we get ,

$E=-\dfrac{2xyz^2}{\delta x }-\dfrac{2xyz^2}{\delta y }-\dfrac{2xyz^2}{\delta z }\\\\E=-2yz^2-2xz^2-4xyz$

Hence , this is the required solution.

3 0

3 years ago

WILL GIVE BRAINLIEST!

yaroslaw [1]

stable equilibrium, if displaced from equilibrium, it experiences a net force or torque in a direction opposite to the direction of the displacement.

unstable equilibrium, if displaced it experiences a net force or torque in the same direction as the displacement from equilibrium. A system in unstable equilibrium accelerates away from its equilibrium position if displaced even slightly.

neutral equilibrium, is when an equilibrium is independent of displacements from its original position.

Have a good day, hope this helps

8 0

3 years ago

What is the difference between conductor and insulator

ladessa [460]

Answer:

There are three types of material as per the condition of charge flow

1) Conductor

2) Insulator

3) Semiconductor

1) Conductors

As we know that conductors are those which offer very small resistance to the flow of charge

Resistivity of the conductors are very small

2) Insulators

These type of materials offer large resistance to the flow of charges and it will not pass the current through it

So resistivity of the insulators are large as compared to conductors

5 0

3 years ago

4. For a series of experimentally measured values give the definition of (a) average or mean value (b) the deviation from the me

Naya [18.7K]

Answer:

a) x_average = ∑ $x_{i}$ / n , b) Δx_{i} = x_{i} –x_average,

d) σ = √(1/n-1 ∑ Dx_{i}² )

Explanation:

Some definitions are requested

a) the average value is the sum of all the values divided by the number of them, if the uncertainties are random, this is the closest value to the real one

x_average = ∑ $x_{i}$ / n

b) The deviation from the mean value or absolute error is the measured value minus the average value

Δx_{i} = x_{i} –x_average

c) is the average value of the deviations

Δx_average = ∑ Δx_{i} / n

d) It is a measure of the dispersion of the values with respect to their average value, it takes the worst of all cases, widely used for large numbers of data

σ = √(1/n-1 ∑ Dx_{i}² )

Experimental results should be given as follows

Average value ± uncertainty and the standard deviation

(x_average + - Δx_average)

σ

3 0

3 years ago