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The mean free path of nitrogen molecules at 10°C and 1.6 atmis 0.293 x 10-5cm. At this temperature and pressure there are 4.15 x 1019molecules/cm3. What is the molecular diameter?
A series AC circuit contains consists of a 100 ohm resistor, a 0.2H inductor, and a 3uF capacitor connected to a 110V 60Hz AC source. What are the inductive reactance, capacitive reactance, and impedance for the circuit? What are the phase angle and ..
You are at a rock concert, and the sound intensity reaches levels as high as 100 dB. Calculate the amplitude of this oscillating force
Find the linear momentum and kinetic energy of a bullet of mass 4.60 10-2 kg moving at a speed of 320 m/s
an object is 18cm in front of a adiverging lens that has a focal length of -12cm. how far in front of the lens should the object be placed
A parallel-plate capacitor of capacitance C is connected to a battery of voltage V until it is fully charged. The energy density in the capacitor is then equal to u. If the same capacitor is then connected to a battery of voltage 2V its energy densit..
A sample of a gas occupies 5.25 m^3 at an absolute pressure of 1.00atm & temp of 20 degrees C: calculate the pressure in the gas sample if the volume is held at 5.25 m^3 while the temp is lowered to negative 40 degrees C
A box slides across a frictionless floor with an initial speed v = 4.9 m/s. It encounters a rough region where the coefficient of friction is uk = 0.3. What is the shortest length of rough floor which will stop the box
Two long, straight wires cross each other at right angles, and each carries same current. Which of the following statements are true regarding the total magnetic field at the various points due to the two wires.
Coherent light from a sodium-vapor lamp is passed through a filter that blocks everything except for light of single wavelength. It then falls on two slits separated by 0.410 . In resulting interference pattern on a screen 2.10 away, adjacent bri..
A freezer has a coefficient of performance of 6.30. It is advertised as using 446 kWh/yr. how much energy does it use in a single day
The image produced by a concave mirror is located 38 cm in front of the mirror. How far in front of the mirror is the object located
If a nearsighted person has a far point df that is 3.50m from the eye, what is the focal length f1 of the contact lenses
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