Sure !
The work is (weight of the book) x (height of the desk above the floor).
The force (weight) is the result of gravity.
It was gravity that did the work.
Water cycle basically involves the change of water into liquid to vapour and again to liquid states through a cyclic manner .
The answers are
- Evaporation
- Transpiration
- Condensation
- precipitation
- runoff
- seapage
- ground water
To solve this problem it is necessary to apply the concepts related to wavelength as a function of speed and frequency. In mathematical terms it can be expressed as

Where,
v = Velocity
f = Frequency
According to our values the frequency (f) is 320Hz and the speed (v) is 339m / s.
Replacing in the given equation we have to,

Therefore the wavelength of this sound wave is 1.06m
To solve this problem it is necessary to take into account the concepts related to the magnetic moment and the torque applied over magnetic moments.
For the case of the magnetic moment of a loop we have to,

Where
I = Current
A = Area of the loop
Moreover the torque exerted by the magnetic field is defined as,

Where,
I = Current
A = Area of the loop
B = Magnetic Field
PART A) First we need to find the perimeter, then




The total Area of the loop would be given as,



Substituting at the equation of magnetic moment we have


Therefore the magnetic moment of the loop is 
PART B) Replacing our values at the equation of torque we have that



Therefore the torque exerted by the magnetic field is 
Answer:
Is this the whole paper? I'll need to know so I can answer.
Explanation: