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Suppose Fuzzy, a quantum-mechanical duck, lives in a world in which h = 2?J · s. Fuzzy has a mass of 2.25 kg, What is the minimum uncertainty in the duck's speed
Four identical charges (+3.0µ C each) are brought from infinity and fixed to a straight line. Determine the electric potential energy of this group
A guitar string of diameter 0.6 mm and length 0.74 m is subject to a tension of 140 N. what is Young's modulus of the string
A simple pendulum uses a steel wire as the "string." The length of this wire is 1.5 m at room temperature. What is the change in the period of the pendulum
A hydraulic lift has pistons with areas 0.40m2 and 5.95m2 , and they're at the same height. how much mass can the larger piston support
You shine violet light through a diffraction grating (200 lines/cm) on a screen 2.0 m from the grating. The width of the light beam is 0.15 mm. How many slits will the light pass through
At a recent rock concert, a dB meter registered 114 dB when placed 1.30 m in front of a loudspeaker on the stage, What was the power output of the speaker
When light of wavelength 350 nm falls on a potassium surface, electrons having a maximum kinetic energy of 1.31 eV are emitted, find the cutoff wavelength
Red light of wavelength 633nm from a helium-neon laser passes through a slit 0.370mm wide. What is the width of the central bright fringe?
Three balls are constrained to move on the circumference of a circle of radius R. find the characteristic frequencies of the system
how much work is required to accelerate a proton from rest up to a speed of 0.957c, what would be the momentum of this proton
One solenoid is centered inside another. The outer one has a length of 48.0cm and contains 6600 coils, What is the mutual inductance of these solenoids
Calculate the rotational inertia of a meter stick, with mass 0.83 kg, about an axis perpendicular to the stick and located at the 44 cm mark
A small ball of mass 0.60 kg is attached to one end of a 1.15 m long massless rod, and the other end of the rod is hung from a pivot
If a 35.0 N·m torque on a wheel causes angular acceleration 20.0 rad/s2, what is the wheel's rotational inertia
The bones of a saber-toothed tiger are found to have an activity per gram of carbon that is 15.3% of what would be found in a similar live animal. How old are these bones (in years)
Suppose that you start with 1.41 mg of a pure radioactive substance and 2.30 h later determine that only 0.252 mg of the substance remains
One of the many isotopes used in cancer treatment is gold 19879Au, with a half-life of 2.70 days. Determine the mass of this isotope
A convex mirror has a focal length of -48.0 cm. A 12.0-cm-tall object is located 36.0 cm in front of this mirror. Using a ray diagram drawn to scale, determine the location of the image. Note that the
For a convex mirror, when the object is 24.4 cm in front of the mirror the image is 15.8 cm behind the mirror. determine the distance of the image behind the mirror
A 7650kg iceberg with density 931 kg/m3 is afloat in seawater with density 1030 kg/m3. find the buoyant force on the iceberg
Suppose the pressure in a container of soda is 15 atm. At 25oC, the Henry's Law constant for CO2 in water is 1.61 x 103 atm. Estimate the mole fraction of dissolved carbon dioxide in the soda
The vapor pressure of benzene is 100 mm Hg at 26.1 C and 400 mm Hg at 60.6 C. Estimate the heat of vaporazitaion of benzene in this temperature range
Imagine two Einstein solids in thermal contact. A has 300 atoms and B has 200 atoms, and qtotal = 100, what is the equilibrium macrostate
An automobile traveling at 40.0 km/h has tires of 50.0 cm diameter. How far does the car move during the braking