Answer:
C. 50%
Explanation:
Lets consider that the mass of taffy is m and its initial velocity is u and final velocity is v. Momentum is conserved so we can write it as,

The initial kinetic energy = 
As the Kinetic energy partly converted into heat.
The final kinetic energy =
= 
Change in the kinetic energy = 
now we can determine the fraction of kinetic energy that has turned into heat
=
= 
= 50%
∆S>_closed integral of dQ/T
There are many equations for different situations of entropy but this is a general one
Answer:

Explanation:
The fusion reaction in this problem is

The total energy released in the fusion reaction is given by

where
is the speed of light
is the mass defect, which is the mass difference between the mass of the reactants and the mass of the products
For this fusion reaction we have:
is the mass of one nucleus of hydrogen
is the mass of one nucleus of helium
So the mass defect is:

The conversion factor between atomic mass units and kilograms is

So the mass defect is

And so, the energy released is:

Answer:
The value is
Explanation:
From the question we are told that
The length of the string is
The mass is 
The frequency produced at fourth harmonic vibration(i.e n =4 ) is 
Generally the wavelength of the string is mathematically represented as

=>
=>
Explanation:
Social learning is a hypothesis of learning cycle and social conduct which suggests that new practices can be procured by noticing and copying others. This impacts children because they do things they do not want to.