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Question 1:
a. Outline the Quantum Confinement effects in quantum wells
b. Outline the density of states for 3D, 2D, 1D and 0D systems (use solid state physics text book to aid you)
Question 2: Outline top down and bottom up methods for the creation of nanomaterials: in your answer give an example of each and state the differences between them.
Question 3: Outline the use of nano gold in chemotherapy and outline Asbestos and possible nanotube parallels.
7.4 mol of helium are in a 16 L cylinder. The pressure gauge on the cylinder reads 68 psi. calculate the average kinetic energy of a helium atom
A pump draws water through a 150 mm diameter pipe from a reservoir whose surface level is at datum level and discharges it through a 100 mm diameter pipe to another reservoir whose surface level is 72 m above datum level.
a uniform rectangular plate is hanging vertically downward from a hinge that passes along its left edge. by blowing air
A 2.5 kg object is attached to a horizontal spring of force constant k = 4.1 kN/m. The spring is stretched 10 cm from equilibrium and released. Find the maximum acceleration
A 2m3 balloon filled with helium at sea level climbs to 10,000 m. The temperature at sea-level is 20C, What is the volume of the balloon at 10,000 m
If an object is moving with constant momentum ‹ 12, ?16, ?7 › kg · m/s, what is the rate of change of momentum
A communications satellite with a mass of 400kg is in a circular orbit about the Earth. Calculate the wieght of the satellite on the surface of the earth
On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball with a golf club improvised from a tool. find How long was the ball in flight
A moon orbits a planet of unknown mass with a period of 1.8 days. If the radius of the moon's orbit is 420,000,000 meters, find the mass of the planet. Determine the centripetal acceleration of the moon
Christy has a grandfather clock with a pendulum that is 1.000 m long. If the pendulum is modeled as a simple pendulum, what would be the period
An energy of 39 joules is stored in a metal sphere. If a sparkcarrying 3 x 10-4 C discharges the metal sphere, find the sphere's electric potential before the discharge
A lead ball is dropped into a lake from a diving board 5.6 above the water. After entering the water, it sinks to the bottom with a constant velocity equal to velocity with which it hit the water. The ball reaches the bottom 5 after it is released..
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