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Question: A bar has a 20 N weight at one end, as shown in Figure 7.22. You have a weight of 15 N to hang somewhere on the bar sothat the bar is in equilibrium. Where would you hang the 15 N weight on each of these bars? Consider the bar to have no mass.
Suppose the pilot, starting again from rest, opens the throttle partway. Find the net force acting on the boat
Digital bits on a 12.0-cm diameter audio CD are encoded along an outward spiraling path that starts at radius R1=2.5cm, Determine the total length of the spiraling path
Unpolarized light passes through two Polaroid sheets. The transmission axis of the analyzer makes an angle of 40.1° with the axis of the polarizer. What fraction of the original light is absorbed by the analyzer
A triatomic molecule is oriented as follows along the x-axis: Mass m is at the origin, mass 2m is at x=a, and mass 3m is at x=2a. what is the moment of inertia of this molecule about the y-axis?
a 1600 kg car is moving westward with a speed of 20 ms and a 2800 kg truck is traveling east with a speed of 14 ms.
Old naval ships fired 13 kg cannon balls from a 210 kg cannon. It was very important to stop the recoil of the cannon, since otherwise the heavy cannon would go careening across the deck of the ship.
Task 1 concerns exploring the thermochromic behavior of cobalt chloride ethanol solutions (CoCl2(EtOH)3) with methanol (MeOH). You are to prepare
In order to save fuel, an airline executive recommended the following changes in the airlines' largest jet flights:
A certain animal species is equally likely to have blue eyes or brown eyes. What is the entropy of this sample
A pendulum set up in the stairwell of a 14 story building consists of a heavy weight suspended on a 25.5 m wire. If g = 9.81 m/s2, What is the period of oscillation
The frequency of sound waves in air from a violin string are around 694 Hertz. If the speed of sound in air is 300 meter per second, obtain what is the wavelength of the sound waves
A roller coaster, loaded with passengers, has a mass of 2,000 kg; the radius of curvature of the track at the TOP point before the dip is 24 m. what force is exerted on the vehicle by the track
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