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A spherical ball with a radius of 2.660×10-1 m is completely submerged in a fluid that has a density of 1.081×103 kg/m3.
What is the volume of the fluid displaced by the ball? (Since the ball is completely submerged, this is the same as the volume of the ball.)
What is the weight of the fluid displaced by the ball?
What is the buoyant force acting on the ball? (See Archimede's Principle in the text.)
The other end goes over a pulley 1.8m away and is attached to a 7 kg cement block. When the string is plucked like a guitar the third harmonic has a frequency of 522Hz.
A positively charged particle of mass 7.60 10-8 kg is traveling due east with a speed of 40 m/s and enters a 0.39-T uniform magnetic field. compute the magnitude of the magnetic force acting on the particle
Light inside an optical fiber tube hits the wall between the tube and air. What is the index of refraction of the tube
A jewelry maker has asked your glass studio to produce a sheet of dichroic glass that will appear red for transmitted light, how thick should the coating be
A narrow beam of light with wavelengths from 450 nm to 700 nm is incident perpendicular to one face of a 32.00, What is the angular spread of the beam after passing through the prism
For tests using a ballistocardiograph, a patient lies on a horizontal platform that is supported on jets of air, that the patient and platform start from rest, determine the recoil velocity
A glass soda bottle is emptied of soda and filled to the very top with water. A cork is carefully fitted into the top of the bottle, leaving no air between the cork and the water.
A hummingbird is flying in such a way that it is initially moving vertically with a speed of 4.4 m/s and accelerating horizontally at 11.9 m/s2. Assume the bird's acceleration remains constant for the time interval of interest
A barbell spins around a pivot at its center . The barbell consists of two small balls, each with mass m = 460 grams, at the ends of a very low mass rod whose length is L = 24 cm. The barbell spins with angular speed ω = 50 radians/s.
In the final part of its life cycle a particular rotating spherical star expands to four times its normal diameter. How is the period of rotation affected
Suppose that you find the volume of all the oceans to be 1.4\times10^9\; \rm km^3 in a reference book. What is this volume in cubic meters
A 1.5 kg particle-like object moves in a plane with velocity components vx = 40 m/s and vy = 90 m/s as it passes through the point with (x, y) coordinates of (3.0, -4.0) m.
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