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The two beads produce a net electric field of magnitude E at the center of the ring. At what (a) positive and (b) negative value of angle theta should bead 2 be positioned such that E = 2.00 x 10^5
An air-track glider attached to a spring oscillates between the 14.0 {rm cm} mark and the 62.0 {rm cm} mark on the track. The glider completes 10.0 oscillations in 33.0 {rm s}. What are the amplitud
A bucket filled with dirt of mass 22 kg is suspended by a rope that hangs over a pulley of mass 31 kg and radius 0.15 m (figure below). Everything is initially at rest, but someone is careless and l
The angle between the support cable and the horizontal is 32°, and the angle between the boom and the horizontal is 48°. Find the tension in the support cable.
The coefficient of static friction between the cubes is 0.71. What is the smallest magnitude that P can have in order to keep the small cube from sliding downward?
A sound source emits sounds of frequency 210 Hz that travel through still air at 340 m/s. The listener moves at 75 m/s relative to still air toward the stationary source. What is the wavelength of
This centrifuge is now used in a space capsule on the planet Mercury, where g mercury is 0.378 what it is on earth. How many (in terms of ) should it make to produce 7 g mercury at its outer end?
What minimum force F is required to prevent the block from sliding down the wall? (Hint: The static frictional force exerted on the block is directed upward, parallel to the wall.)
A 40-cm length of wire has a mass of 6.0 g. It is stretched between two fixed supports and is under a tension of 175 N. What is the fundamental frequency of this wire?
What would the tape measure read when the temperature increases to 45?C? The coefficients of linear expansion of steel and brass are 1.9 × 10-5?C-1 and 1.1 × 10-5?C-1, respectively.
If the diver holds her breath while quietly rising to the surface, what will be the volume of her lungs (in liters) at the surface?
The first stone has an initial velocity of 2.2 m/s. How long after release of the first stone do the two stones hit the water?
The longest "string" (a thick metal wire) on a particular piano is 3.0 m long and has a tension of 300.0 N. It vibrates with a fundamental frequency of 27.5 Hz. What is the total mass of the wire
At what time is the magnitude of the rock's acceleration equal to g? (Remember that you need to include both tangential and radial accelerations in computing the magnitude of the rock's acceleration
What is the electrostatic force on the block? magnitude N direction ° (counterclockwise from the x-axis is positive)
How much time does the clock gain or lose in one week?
What minimum spacing around the wind-shield is needed to prevent the windshield from breaking if the temperature changes by 162?F?
In what ways do photons resemble familiar particles such as electrons? In what ways do they differ? For example, do they have mass? Electric charge?
Two 325 kg masses (722 lb) are separated by a distance of 4 m. Using Newton's law of gravitation, find the magnitude of the gravitational force exerted by one mass on the other.
Determine the mass defect (in u) for (a) helium-3 (2He3), which has an atomic mass of 3.016 030 u, and (b) the isotope of hydrogen known as tritium (1T3), which has an atomic mass of 3.016 050 u.
Use the work-energy theorem to calculate the minimum speed, , that the member must impart to the box at the bottom of the incline so that it will reach the skier.
The first-order bright fringe is a distance of 4.84 from the center of the central bright fringe. For what wavelength of light will the first-order dark fringe be observed at this same point on the
A long line carrying a uniform linear charge density +50.0 micro C/m runs parallel to and 10:0 cm from the surface of a large, at plastic sheet that has a uniform surface charge density of 100
An observer, P, is located on the x axis, a distance x= 61.0 m from antenna A, so that APB forms a right triangle with PB as hypotenuse. What is the phase difference between the waves arriving at P
An object undergoing simple harmonic motion takes 0.55 s to travel from one point of zero velocity to the next such point. The distance between those points is 46 cm. (a) Calculate the amplitude