Answer:
Most interstellar clouds remain stable in size because the force of gravity is opposed by thermal pressure within the cloud.
(thermal pressure is the pressure resulting from the thermal motions of the particles in the cloud)
It is to be noted that the electric field that has been induced is (<em>-B₁ A/2</em>
R)θ. This is obtained by using the vector units in the Cylindrical Coordinate System.
<h3>What are Cylindrical Coordinates?</h3>
Cylindrical Coordinates are simply defined as a component of a coordinate system that is used to locate a location in space using its polar coordinates and vertical distance from the polar plane.
<h3>How is the induced field arrived at?</h3>
The formula for Induced Electric Field is given as:
<em>∫ E · dl = ∈</em>
<em />
If we replace ∈ with <em>-B₁A </em>and <em>2</em><em>R </em>for <em>dl </em>then
<em>∫ E · dl </em>= <em>-B₁A. </em>Thus, we can state that
<em> </em>
<em>E∫ dl = -B₁A</em>
<em />
<em>Replacing or substituting 2</em><em>R for ∫ dl ·E(2πR) = - B₁A</em>
<em />
We can thus rearrange the equation to read:
<em>E · E = (</em>
)θ
It is to be noted that the circumference of a circle is the integral of the length of the element. While θ, which in this case is the unit vector refers to the Cylindrical Coordinate and the direction of the electric field.
Learn more about Cylindrical Coordinates at:
brainly.com/question/3376338
Scientific knowledge can be modified. This is because all the scientific principles that are existing now is not certain for all possible conditions. Scientific knowledge is not directly given to us, human minds work the effort of unveiling the unknown. Thus, scientists are slowly discovering the science of all natural phenomena. Along the way, they could come up with misinterpretations. Let me give a concrete example. When J.J. Thompson proposed the Plum-Pudding model, it was the widely accepted theory in the field of atomic science. However, when Rutherford did his golden foil experiment, he disproved Thompson's model and proposed the Planetary Model. Therefore, scientific knowledge is an ongoing process. Scientists would always want to disprove each other, not because they want to compete with each other. They want to discover the truth together with what they have to the best of their abilities. They are never content with just one simple principle according to one scientist. It will always be verified by a group of fellow scientists.
In the 21st century where technology is exponentially progressing, scientists would discover more of the basic principles. Hence, we would expect that scientific knowledge is constantly changing and modifying.
Concave mirrors can make a real image.when the object is away from the mirror it is called real image and when the object is closer to the mirror it is called virtual mirror.
<span>(Momentum is Zero) 0 = (26.0 kg + 55.0 kg)v + (5.40 kg)(+10.0 m/s)
</span>velocity = -.667 m/s
