Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Question1
The overall gain of an STM controller is 10000x (equivalent to40dB, where dB=10log10) at low frequencies. If piezo resonance occurs at 10 kHz, what is utmost 3dB bandwidth of the amplifier (the frequency at which the gain of the amplifier has fallen by 3 dB from its DC gain)? (The gain falls 2x or -3bB per octave for a plain RC circuit like the integrator in an STM). To do this figure out how several octaves below 10 kHz one should go to get to the full gain, then double frequency to find the -3dB point (this is how the bandwidth of amplifiers is generally specified.)
Question2
Operated in constant height mode, the STM forms a current image by recording current as the probe is scanned over a surface. A probe, 2A above a gold surface, consists of a double tip, with a second atom 0.25A higher than lowest atom (which is the one 2A above the surface) gives a ‘ghost’ image displaced from key image. What is relative intensity of this ghost image?
A 34.7 m long aluminum wire at a temperature of 24.3 oC has a radius of 0.295 mm. what is the resulting current in the wire
What is current in the coil
Water is flowing through a pipe with a constriction. The diameter of the narrow section is one-third the diameter of the wide section. what is the velocity of the fluid in the wide section
A proton is fired directly at a lithium nucleus. If the protonâ€TMs velocity is 4.0x105 m/s when it is far from the nucleus, how close will the particles get to each other
Sunlight strikes a piece of crown glass at an angle of incidence of 30.0 degrees. Calculate the difference in the angle of refraction between a red (660.0 nm) and a blue (470.0 nm) ray
Velocity and time for the moving particle.
A "sun yacht" is a spacecraft with a large sail that is pushed by sunlight. Although such a push is tiny in everyday circumstances, What is the magnitude of the resulting acceleration, If the craft starts from rest
To protect their young in the nest, peregrine falcons will fly into birds of prey (such as ravens) at high speed. What was the raven's speed right after the collision
A proton traveling with a velocity of 6.20x10^6 m/s in the positive x direction encounters a uniform 0.25 magnetic field in the positive y direction
An object of mass m is dropped from height habove a planet of mass M and radius R. Find an expression for the object's speed as it hits the ground
A uniform steel plate has an area of 0.905 m2. When subjected to a temperature difference between its sides, a heat current* of 22.5 kW is found to flow through it. What is the temperature gradient? What is the temperature difference when the plat..
A top spins at 28 rev/s about an axis that makes an angle of 33° with the vertical. The mass of the top is 0.44 kg, What is the precession rate
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd