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If the top story of a building is restrained by a spring of stiffness KN , as shown in Figure, determine the natural frequencies of the N-story building.
The response must be typed, single spaced, must be in times new roman font (size 12) and must follow the APA format.
While in orbit about the Earth, a space shuttle's mass is 50,000 kilogram and its speed is 8km/s. Estimate what is its kinetic energy
Two sources produce electromagnetic waves. What is the energy of a photon from source B
Singing that is off-pitch by more than about 1% sounds bad. How fast would a singer have to be moving relative to the rest of a band to make this much of a change in pitch due to the Doppler effect?
a recording engineer works in a soundproof room that is 44.0 db quieter than the outside. if the sound intensity in the room is 1.20 x 10^-10 w/m^2, what is the intensity outside
one mole of an ideal gas at 1 atm and 0 C is compressed isothermally from 50 L to 20 L. What is the change of internal energy for this gas
A diver springs upward with an initial speed of 7 m/s from a diving board that is 2 m above the water. Find the total time the diver is airborne
You are given a wooden rod 70 cm long and asked to drill a small diameter hole in it so that when pivoted about the the hole the period of the pendulum will be a minimum. How far from the center should you drill the hole
a. Draw the x-y axis system, and label the coordinates and joint names. b. Calculate the lenght of the arm segment. c. Calculate the angle of the arm from the right horizontal (and draw it).
A crude approximation of voice production is to consider the breathing passages and mouth to be a resonating tube closed at one end. Find what is the fundamental frequency if the tube is 0.250 meter long, taking air temperature to be 37°C
A model helicopter pulls into a tight circular curve of radius 40.0 m. The 400 g helicopter is traveling at 90.0 km/h. What is the centripetal force.
A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. What is the mass of the meter stick
The ammonia molecule NH3 has a permanent electric dipolemoment equal to 1.31 D, where 1 D = 1debye unit = 3.34 multiplied by10-30 C·m. Calculate the electric potential dueto an ammonia molecule at a point 51.0 nmaway along the axis of the dipole. (S..
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