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1 cubic Meter, (1.00m^3) of aluminum has a mass of 2.70x10^3 kg, and a 1.00m^3 of iron has a mass of 7.86x10^3 kg. Find the radius of a solid aluminum sphere that will balance a solid iron sphere of radius 2.00 cm on an equal-arm balance.
A pulse from a ruby laser (lambda = 694.3 nm) has an average power of 30 MW and lasts 2.9 ns. How many photons are emitted in this pulse
the atomic bomb dropped on hiroshima had an explosive energy equivilent to that of 2.1 x 104 tons of tnt or 8.82 x 1013
In a student experiment, a constant-volume gas thermometer is calibrated in liquid nitrogen (?196°C), What value of absolute zero does the calibration yield
The turntable in a microwave oven has a moment of inertia of 0.06 kg meters squared and is rotating once every 4.01 s. What is its kinetic energy in Joules
Two resistors connected in series have an equivalent resistance of 569.5 Ohms. When they are connected in parallel, Find the resistance of each resistor
a a circular coil of 30 turns and radius 8.0 cm carrying a current of 6.0 a is suspended vertically in a uniform
Neglect air resistance, as well as any energy absorbed by the pole, and clerify her altitude as she crosses the bar.
An unknown substance has a mass of 0.125 kg and an initial temperature of 112.3°C. The substance is then dropped into a calorimeter made of aluminum containing 0.285 kg of water initially at 27.8°C.
Consider two identical particles of spin 1/2 that are confined in a cubical box of side L. Find the energy and the wave function of this system in the case of no interaction between the particles.
electric charge is uniformly distributed inside a nonconducting sphere of radius 0.30 m. the electric field at a point
A circuit consists of a 259- resistor and a 0.260-H inductor. Determine the phase angle between the current and the voltage of the generator. Note: The ac current and voltage are rms values and power is an average value unless indicated otherwise
A small earthquake starts a lamppost vibrating back and forth. find the time constant for the damping of the oscillation
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