Clouds of gas in space
A protostar resembles a star, but its core is still too cool for fusion to occur. The protostar's heating as it contracts is the only source of brightness. The light that protostars release is typically blocked by dust, making them challenging to study in the visible spectrum. By the time a protostar is produced, the cloud has flattened and a protostellar disk is spinning around it. The cloud starts spinning as it collapses. These disks occasionally form planetary systems and are thought to slow the protostar's rotation. The protostar produces a powerful magnetic field as it revolves. Additionally, a strong protostellar wind—a movement of particles into space—is produced by the magnetic field. A lot of protostars also release gas into space in the form of fast-moving streams or jets.
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The height of the light house is 17.86m.
To find the answer, we have to know about the simple pendulum.
<h3>How to find the height of the light house?</h3>
- We have the expression for time period of the pendulum as,
where, g is acceleration due to gravity, and l is the length of the pendulum.
- For the pendulum with time period T kept at some height under the influence of gravity, then the height will be equal to,
Thus, we can conclude that, the height of the light house is 17.86m.
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"The number of waves per second will increase" is the statement among the choices given in the question that <span>will be true if you increase the frequency of a periodic wave. The correct option among all the options that are given in the question is the first option or option "A". I hope that the answer has helped you.</span>
Answer:
Mono-chromatic, Poly-chromatic. When a wave moves from one medium into another at an angle other than 90 degrees the wave will change direction and continue to follow a new straight-line path
<u><em>Thank you</em></u>
<span>The Answer is 5200 Joules</span>