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The drag force acting on a sphere moving through a liquid like water is given by F=6?vr? where F is the drag force, v is velocity of the sphere, r is radius of the sphere, and ? is the viscosity of the liquid. Force has dimensions of (mass * length)/(time2). What are the dimensions of viscosity?
Two identical parallel-plate capacitors, each with capacitance C, are charged to potential difference ?V and then disconnected from the battery. Find the potential difference across each capacitor after the plate separation is doubled
A 2.0-kilogram cart moving due east at 6.0 meters per second collides with a 3.0-kilogram cart moving due west. What was the initial speed of the 3.0-kilogram cart
Light has a wavelength of 550 nm in a vacuum. It then enters a medium of index of refraction 1.70, What is the frequency of this light in the vacuum, What is its frequency in the medium
A 0.30-kg particle has a speed of 2.0 m/s at point A and kinetic energy of 7.5 J at point B. What is the total work done on the particle as it moves from A to B
A 2.18-m-long diving board of mass 13.2 kg is 3.00 m above the water. It has two attachments holding it in place. what are the forces acting on the two attachments
When the power is turned off on a turntable spinning at 59.0rpm, What is the angular acceleration (in rad/s2), of this turntable
Water at 2 kg/s is the working fluid in the power cycle shown below. Saturated liquid at 10 kPa enters the pump, What is the overall efficiency of the entire cycle
A mass of 20 kg is attached to a light string which is wrapped around a cylindrical spool of radius 10 cm and moment of inertia 2 kg.m^2. How long does it take to reach the floor
An object is located 21.4 cm to the left of a diverging lens having a focal length f = -34.2 cm. Determine the magnification of the image
What, in your opinion after reading the chapter, constitutes "abnormal" behavior. How would you qualify what is outside of the "norm"
A ferry transports tourists among three islands. It sails from the first island to the second island, 5.41 km away, Calculate the distance between the first and third islands
A catcher catches a fastball going 95mi/hr and recoils 12cm while stopping the ball in 0.005s. (mass of the ball is 280g). find the average force the ball exerts on the hand & glove
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