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A 1 m3 container is filled with 0.12 m3 of diamonds, 0.15 m3 of sand, 0.2 m3 of petroleum at 20oC, and the rest of the volume, 0.53 m3, is air at 20oC and 1 atm pressure.
The screen is placed 1.2 m away from double slit and the 3rd dark fringe is 1.2 mm from the central bright fringe. By how much does the central bright fringe move if a glass (refractory index, n=2.7
A proton has mass 1.7x10-27 kg. What is the magnitude of the impulse required in the direction of motion to increase its speed from 0.991c to 0.994c?
Air is let in under the piston so that it pushes up, causing the water to spill over the edge. Derive the formula for the air pressure as a function of piston elevation from the bottom, h.
Certain streets in San Francisco make an angle of 19.0 degrees with the horizontal. What force parallel to the street surface is required to keep a loaded 1967 Corvette of mass 1360 kg from rolling
A dynamite blast at a quarry launches a rock straight upward, and 1.7 s later it is rising at a rate of 15 m/s. Assuming air resistance has no effect on the rock, calculate its speed (a) at launch a
If the mass of the petcock in a particular pressure cooker is 50 grams, and has an opening cross-sectional area of 4 mm2, what is the operation pressure inside the cooker?
Determine the tension in the restraining rope at a 60 degree from vertical angle. Assuming that the inlet and exit temperatures are equal.
Determine the change in the rate at which the following quantities enter and exit: combined thermal and flow work, mechanical energy, total energy. Determine heat trasfer rate. Properties may be obt
An isolated cylinder contains 0.3 m3 of steam divided into two (closed) chambers by a piston that can operate adiabatically. Estimate the temperature of the air when it has reached mechanical (e.g., p
Neglecting friction, determine the a) the velocity of B relative to A after it was slid 3 ft down the inclined surface of the wedge. The angle is 30 degrees.
Defining the potential energy to be zero when the dipole is transverse to the electric field, find the potential energy of the dipole for orientations listed in (a) and (c)
Use conservation of energy to calculate the speed of the alpha particle at infinity.
For many years the posted highway speed limit was 88.5km/hr (55mi/hr) but in recent years some rural stretches of highway have increased their speed limit to 104.6km/hr (65mi/hr). In Maine, the dist
A ball of mass 1.34 kg is attached to a vertical rod by two strings. The top string is 1.60 m long and makes a 30° angle with the rod, while the bottom string makes a 45° angle with the rod
Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the naturally occuring electrons is removed. The radius of th
The masses of the earth and moon are 5.98 x 1024 and 7.35 x 1022 kg, respectively. Identical amounts of charge are placed on each body, such that the net force (gravitational plus electrical) on each
Four identical metal spheres have charges of qA = -8.0 µC, qB=-2.0 µC, qC=+5.0 µC, and qD=+12.0 µC. (a) Two of the spheres are brought together so they touch, and then they a
Charges of 6.0 X 10^-7 C are each located at three corners of a square that is 1.0 m on each side. A charge of -1.3 x 10^-6 C is located at the other corner. What is the electric field at the center
Four identical metallic objects carry the following charges: +1.29, +6.21, -4.54, and -9.14C. The objects are brought simultaneously into contact, so that each touches the others. Then they are sepa
As the crate is sliding down the ramp, you find the washer is at rest with respect to the crate when the string makes an angle of 57^\circ with the top of the crate. What is the coefficient of kinet
A +20-nC point charge is placed on the x axis at x = 2.0 m, and a -25-nC point charge is placed on the y axis at y = -3.0m. What is the direction of the electric field at the origin?
Three point charges are placed on the y-axis: a charge q at y=a, a charge -2q at the origin, and a charge q at y=-1 . Such an arrangement is a special case of what is called an electric quadrupole.
Write a mathmatical expression for the displacement of the string particles, knowing their maximum displacement is 0.01m
If one micrometeorite (a sphere with a diameter on the order of 1.7 x 10^-6 m) struck each square meter of the Moon each second, estimate the number of years it would take to cover the Moon with mic