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Question :
1. Explain two methods to make grapheme?
2. Explain two methods to make quantum dots?
3. Explain the fluorescence/emission processes in carbon nanotubes and how this emission can be used in biology for imaging
A cement block accidentally falls from rest from the ledge of a 72.6 -m-high building. How much time, at most, does the man have to get out of the way
A 74- kg ice hockey player standing on a frictionless sheet of ice throws a 6.2- kg bowling ball horizontally with a speed of 3.9 m/s. what speed does the hockey player recoil
Using energy considerations, compute the average force the beam exerts on the pile driver while the pile driver is brought to rest.
A jet plane flying at a constant speed v at an altitude h = 10 km is being tracked by radar located at O directly below the line of flight. determine the value of r at this instant and the magnitude of the velocity v of the plane
Two capacitors, C1 = 2x10^-6 F and C2 = 4x10^-6 F, are connected in series with an 18 V battery. Find the final charge and potential difference for each capacitor
Suppose the uranium nucleus was at rest just before the decay. If the α particle is emitted at a speed of 1.74×107 m/s, illustrate what would be the recoil speed of the thorium nucleus?
A 3.70g bullet moving at 250m/s enters and stops in an initially stationary 3.50kg wooden block on a horizontal frictionless surface, How much work was done in stopping the bullet
Two toy locomotives approach each other along the same line, and upon collision both stop dead still. What is the mass of the faster locomotive
A beam of nuclei is used for cancer therapy. Each nucleus has an energy of 190 MeV, and the relative biological effectiveness (RBE) of this type of radiation is 16. How many nuclei are in the beam
What is the car's maximum speed on an incline. A fire hose held near the ground shoots water at a speed of 5.4 m/s, At what angle(s) should the nozzle point in order that water land 2 m away.
The electric field midway between two equal but opposite point charges is 939N/, What is the direction of the electric field, Calculate the magnitude of the electric field
A solar cell generates a potential difference of 0.320 V when a 445.0 ? resistor is connected across it and a potential difference of 0.504 V, find the internal resistance of the cell in Ohms
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