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A small fly of mass 0.27g is caught in a spider's web. The web vibrates predominately with a frequency of 3.2Hz.
Part A What is the value of the effective spring stiffness constant k for the web?
Part B At what frequency would you expect the web to vibrate if an insect of mass 0.54g were trapped?
You are standing on a sheet of ice that covers the football stadium parking lot in Buffalo; there is negligible friction between your feet and the ice. what is your speed after the collision
Water is at rest at the bottom of a well of depth h = 7.82 m. A pump lifts mass at a rate of dm/dt = 119 kg/minute from the well and ejects it with a speed v = 3.74. m/s. find P, the power (energy per time) needed to do this work
A capacitor that has air between its plates is connected across a potential of 24.0 V and stores 48.0 uC of charge. Find the capacitance of the capacitor
A railroad engine weighs three times as much as a freight car. If the engine coasts at 9 km per hour into a freight car that is initially at rest
two people running a 5000 meter race. cindy is running at 2.8meterssecond. jim starts 3000s late but is running at 4.2
A potter's wheel (a solid, uniform disk) of mass 5.7 kg and radius 0.65 m spins about its central axis. A 2.1 kg lump of clay is dropped onto the wheel at a distance 0.41 m from the axis. Calculate the rotational inertia of the system.
What percentage of the input energy needed to pump the water up to the top tank could you recover from the turbine as the water ran back to the bottom tank, two 15,000 litre water tanks and put one on a frame 3m higher than the other,
Jordan is building a compound microscope using an eyepiece with a focal length of 7.50 cm and an objective with a focal length of 1.500 cm. How far apart should Jordan place the lenses
A 0.20 kg mass resting on a frictionless surface is attached to a solid wall by means of a spring with and elastic force constant k of 5.0 N/m. calculate the maximum velocity experienced by the mass
As you bounce a tennis ball of mass 7.70 10-2 kg off a wall, its velocity changes from vx = 10.8 m/s to vx = -8.3 m/s. Find the impulse applied to the ball
A student sitting on a frictionless rotating stool has rotational inertia 0.90 kg*m^2 about a vertical axis through her center of mass when her arms are tight to her chest. The stool rotates at 6.80 rad/s and has negligible mass.
A town has 500 real estate agents. The mean value of the properties sold in a year by these agents is $800,000 and the standard deviation is $300,000. A random sample of 100 agents is selected, and the value of the properties they sold in a year i..
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