The answer is a rem sleep
Answer:
The four fundamental forces magnitude and range are in order of Strong Nuclear Force > electromagnetic force > weak nuclear force > gravitational force.
Explanation:
The 4 fundamental force are weak nuclear force, strong nuclear force, em force and the gravitational force are discussed below.
Strongest force is the strong nuclear force as compared to all of them. It is very useful for capturing the atoms nucleus together despite the large repulsion which is occur between the same charges due to protons in the nucleus.
Electromagnetic Force is the 2nd strongest fundamental force. Magnetism and electricity was thought to be of 2 separate forces.
Weak Nuclear Force involves the W and Z bosons exchange. It has a very short range of
Gravitational Force is the weakest between all the fundamental forces. However, due to its long range it is the most dominant force. It follows the inverse square law like but it is always attractive in nature.
Answer:
(a). The value of angular speed of the merry-go-round 
= - 5.82 × 
(b). The linear speed of the girl after the rock is thrown V = -1.89 × 
Explanation:
Given data
Mass of the girl 
= 50.6 kg
Mass of merry-go-round 
= 827 kg
Radius r = 3.72 m
The speed of the rock relative to the ground 
= 7.82
(a). The angular speed of the merry-go-round is given by
![\omega = - [\frac{m_{r}v_{r} }{r} ] \frac{2}{m_{m} + 2m_{g} }](https://tex.z-dn.net/?f=%5Comega%20%3D%20-%20%5B%5Cfrac%7Bm_%7Br%7Dv_%7Br%7D%20%20%7D%7Br%7D%20%5D%20%5Cfrac%7B2%7D%7Bm_%7Bm%7D%20%2B%202m_%7Bg%7D%20%7D)
Put all the values in above formula
= - 5.82 ×
This is the value of angular speed of the merry-go-round.
(b). The liner speed of the girl is given by
⇒ V = r ×
⇒ V = - 3.72 × 5.82 ×
⇒ V = -1.89 ×
This is the linear speed of the girl after the rock is thrown.
Answer:
A)
B)
Explanation:
= diameter of the spherical chamber = 5.50 m
Volume of the spherical chamber is given as
= density of the seawater = 1025 kg m⁻³
Part A)
Force of buoyancy by seawater on the chamber is given as
Part B)
= tension force in the cable in upward direction
= mass of the chamber = 87600 kg
Weight of the chamber is given as
Using equilibrium of force in the vertical direction, we have
