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Scientists working in field of nanotechnology use either atop-down or bottom-up approach to construct tiny objects. Give andexampleof a visible structure that was made using the bottom-upapproach and one that was made using top-down approach.
A string with a length of 0.7 m is fixed at both ends. What is the longest possible wavelength for the traveling waves that can interfere to form a standing wave on this string
A golf club strikes a 0.045-kg golf ball in order to launch it from the tee. find With what speed does the ball leave the club
For the Atwood's machine, suppose the masses have an initial speed of v = 0.22 m/s and that m2 is moving upward. How high does m2 rise above its initial position before momentarily coming to rest, given that m1 = 3.5 kg and m2 = 3.1 kg.
An unknown number of moles of an ideal monoatomic gas expand reversibly from Vi = 1.30 m3 to Vf = 2.20 m3, Find the number of moles of gas
A mass m = 6.9 kg hangs on the end of a massless rope L = 2.09 m long. Now a peg is placed 4/5 of the way down the pendulum's path so that when the mass falls to its vertical position it hits and wraps around the peg. How fast is the mass moving at..
A 0.29 F capacitor is desired. What area must the plates have if they are to be separated by a 3.7 mm air gap
An infinitely long conducting cylinder of radius a carries a change qi per unit length. If ρ is the perpendicular distance from the axis of the cylinder. Find the scalar potential φ everywhere.
a 20 kg mass sits on an inclined plane with friction making an angle of 50 degrees with respect to the horizontal. calculate the frictional force required to keep the mass from sliding down the incline
A long rod, insulated to prevent heat loss along its sides, is in perfect thermal contact with boiling water (at atmospheric pressure) at one end and with an ice-water mixture at the other.
A box starts from rest and is pushed a distance d = 1.25 meters along a frictionless ramp by a horizontal force, Fa, in 9.75 seconds. find the acceleration of the box as it slides up the ramp
A plane has a resultant velocity of 550 m/s N of E and airspeed 350 m/s east. Find the velocity of the wind
Crossfire was a popular board game in which players attempted to propel a "puck" forward towards their opponet's side by shooting metal balls at it. What is the maximum speed a player can impart to the puck
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