The Answer is true, the saying opposites attract are true for magnets when poles match though they repel.
Answer:
A. Change that normally occurs in people throughout their lifetimes.
Explanation:
APEX verified
The answer is no moons<span> at all. That's right, </span>Venus<span> (and the planet Mercury) are the only two planets that don't </span>have<span>a single natural </span>moon<span> orbiting them. Figuring out why is one question keeping astronomers busy as they study the Solar System.</span>
Answer:
The correct solution is "64 RPM".
Explanation:
The given values are:
Mass,
M = 2.3 kg
Diameter,
D = 20 cm
i.e.,
= 0.2 m
Rotates at,
N = 110 rpm
Mass of block,
m = 460 g
i.e.,
= 0.46 kg
According to angular momentum's conservation,
⇒ 
then,
⇒ 
On substituting the values, we get
⇒ 
⇒ 
⇒ 
Now,
⇒ 



then,
⇒ 
⇒ 
⇒ 
⇒ 