Answer:
Explanation:
The rod will act as pendulum for small oscillation . 
Time period of oscillation 

angular frequency ω = 2π / T 
= 
b ) 
ω = 20( given )
velocity = ω r = ω l 
Let the maximum angular displacement in terms of degree be θ .
1/2 m v ² = mgl ( 1 - cosθ ) , 
[ l-lcosθ is loss of height . we have applied law of conservation of mechanical energy .]
.5 (  ω l )² = gl( 1 - cos θ )
.5 ω² l = g ( 1 - cosθ )
1 - cosθ  = .5 ω² l /g 
cosθ = 1 - .5 ω² l /g 
θ can be calculated , if value of l is given . 
 
        
             
        
        
        
It is A or D but I believe A
        
             
        
        
        
Answer:
the main reason is electricity 
Explanation:
there are many different things nuclear power does that are good and bad.
 
        
             
        
        
        
Answer: a)  The rate constant, k, for this reaction is  
 
b) No  does not depend on concentration.
 does not depend on concentration.
Explanation:
Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

Given: Order with respect to  = 1
 = 1
Thus rate law is:
a) ![Rate=k[A]^1](https://tex.z-dn.net/?f=Rate%3Dk%5BA%5D%5E1)
k= rate constant
![0.00250=k[0.484]^1](https://tex.z-dn.net/?f=0.00250%3Dk%5B0.484%5D%5E1)

The rate constant, k, for this reaction is  
 
b) Expression for rate law for first order kinetics is given by:

where,
k = rate constant  
t = age of sample
a = let initial amount of the reactant  
a - x = amount left after decay process  
Half life is the amount of time taken by a radioactive material to decay to half of its original value.


Thus  does not depend on concentration.
 does not depend on concentration.
 
        
             
        
        
        
Answer:
All music in the world, is form only two notes and those notes are described below in detailed explanation.
Explanation:
In the chromatic scale, there are basically seven central musical notes, designated A, B, C, D, E, F, and G. They individual express a separate pitch or frequency. For illustration, the "central" A note has a pitch of 450 Hz, and the "common" B note has a pitch of 495 Hz.
Varieties Of Musical Notes You Require To Understand
Semibreve (Whole Note)
Minim (Half Note)
Crotchet (Quarter Note)