Answer:
a)
, b) 
Explanation:
a) The turntable has the following physical model by using Newton's laws:

The moment of inertia is:



b) The moment of inertia for a solid cylinder:

The mass of the turntable is:



As a experiment you could use is The affect of light in plants. A study He can do is maybe about Gravity affects and how it works on weight. Also you can do a all time favorite the Mentos and Diet Coke Experiment.
Hopefully one of these ideas will inspire you!
Answer:
(a) Frequency will be 0.168 Hz
(b) Frequency will be 0.0789 Hz
Explanation:
(a) We have given velocity of the ocean waves in east direction v = 3.2 m /sec
Distance between the crest 
We know that 
So 

(b)Velocity of the ocean waves in westward direction v = 1.5 m /sec
Distance between the crest 
We know that 
So 

Answer:
(Equation 10.3. 2): RS=R1+R2+R3+R4+R5=20Ω+20Ω+20Ω+20Ω+10Ω=90Ω
Answer:
Look below.
Explanation:
If additives are having negative effects on health and the environment, it would be wise to not use detergents containing these additives. These additives could threaten living things such as humans and animals.