Answer:
Star, hydrogen and energy
Explanation:
A star is a large ball of gas that generates its own energy by fusing hydrogen atoms to make helium. It is held together by its own gravity. This process emits a tremendous amount of energy, and some of the energy is in the form of light.
The energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. When the core is hot enough, nuclear fusion commences. Fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.
Power is defined as rate of work done which means it is work done in 1 second of time
Now it is given that we have a horse that will give power 745.7 W
So it will do work of 745.7 J in 1 second of time
now if we wish to find the work done by horse in 0.55 s
so we can say
So it will do total work of 410.14 J in 0.55 s of time
Answer:
Speed of the plane will be equal to 2.969 m/sec
Explanation:
Note - It is not given but we have to find the speed of the plane.
We have given radius r =
Angular acceleration
We have to fond the speed of the plane
We know that angular acceleration is equal to
So
v = 2.969 m/sec
So speed of the plane will be equal to 2.969 m/sec
is in motion and that is by newtons 3rd law
also your answer would be law of motion
Answer:
147.45 Hz
Explanation:
v = Speed of sound in water = 1482 m/s
= Speed of whale = 4.95 m/s
Frequency of the wave in stationary condition
Ship's frequency which is reflected back
The difference in frequency is given by
The difference in wavelength is 147.45 Hz