Answer:
1300 rad (
)
Explanation:
The angular speed of an object is the rate of change of angular position.
It is given by:

where
is the angular speed
is the angular displacement of the object
t is the time elapsed
For the propeller rotating in this problem, we have
is the angular speed
t = 5.0 s is the time elapsed
Therefore, the angular displacement is:

And since
, the angle in degrees is

Explanation:
Nucleus of every atom contains both protons and neutrons. Protons are positively charged species whereas neutrons are neutral species, that is, neutrons do not contain any charge.
And, when an electron cloud contains a negatively charged ion then it is able to participate in a chemical reaction as it needs to gain stability.
Therefore, we can conclude that the nucleus contains positively charged particles called protons and neutral particles called neutrons, which are bound together by the strong nuclear force. The electron cloud contains negatively charged particles, which participate in chemical reactions.
Answer:

Explanation:
According to Newton's first law:

The component of the force on the y-axis can be obtained through the Pythagorean Theorem. This is because the components are the cathetus of a right triangle and its hypotenuse is the magnitude of the force:

Replacing and solving for N:

It would be water because if you freeze it than you will still be able to see it and if you boil it than you will be able to see it disappear.
A device that uses electricity and magnetism to create motion is called a "Motor" (which converts electric energy into mechanical energy) & <span>In a reverse process, a device that uses motion and magnetism can be used to create "Electromagnetism".
In short, 1st Blank = Motor
2nd Blank = Electromagnetism
Hope this helps!</span>