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Gas is contained in an 7.0 Lvessel at a temperature of 20°C and a pressure of 8.8 atm.
(a) Determine the number of moles of gas in the vessel.
mol
(b) How many molecules are in the vessel?
______ molecules
A hydrogen atom in its ground state absorbs a photon with an energy of 26 eV, What is the kinetic energy of the ejected electron
A source emits sound uniformly in all directions. A radial line is drawn from this source. On this line, determine the radial positions of two points, 0.786m apart, such that intensity level at one point is 1.72 dB greater than that at the other.
The speed of sound in air at 0 degrees C is 331 m/s. If the density of air is 1.29 kg/m^3, then what is the bulk modulus of air
A sound source emits sounds of frequency 210 Hz that travel through still air at 340 m/s. This sound source moves with a speed of 75 m/s relative to still air toward a stationary listener.
Superman leaps in front of Lois Lane to save her from a volley of bullets. In a 1-minute interval, an automatic weapon fires 148 bullets, Find the average force exerted on Superman's chest
Suppose a uniform magnetic field B is applied perependicular to the plane of a semicircular loop of radius R and a current through the loop is I
A fish is able to jump vertically out of the water with a speed of 5.6 m/s. How much time in seconds does it take for the fish topass a point 0.6 m above the water on the way down?
A dentist's drill starts from rest. After 3.30 s of constant angular acceleration it turns at a rate of 2.0 x 10^4 rev/min. Find the drill's angular acceleration
Write the Lagrangian for a particle of mass m constrained to move on an inclined plane whose angle with respect to the horizontal is θ and derive the equation(s) of motion from Lagrange’s equation(s).
A kilogram of water (c = 4.186 kJ/kg °C) is stirred using a 400 watt device for 5 minutes. How much heat was lost to the surroundings
A power factor is 0.72 lagging and the power dissipated is 375W. 120V and a resistance of 10 ohms, showing all working out.
The average coefficient of volume expansion for carbon tetrachloride is 5.81 10-4 (°C)?1. If a 56.5-gal steel container is filled completely with carbon tetrachloride when the temperature is 10°C, how much will spill over when the temperature rises t..
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