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7.4 mol of helium are in a 16 L cylinder. The pressure gauge on the cylinder reads 68 psi . What are
(a) the temperature of the gas in degrees C and
(b) the average kinetic energy of a helium atom?
question1at what distance from a proton is the magnitude of its electric field 2.3times105? what is magnitude of the
A horizontal force of 200N is applied to a 55kg cart by a child across a 10m level surface. The cart accelerates at 2m/s^2. What force of friction acts to retard the motion of the cart
An ideal refrigerator utilizes a Carnot cycle operating between 0 degrees Celcius and 18 degrees Celcius. How much energy must be supplied to the refrigerator
A dipole is located at the origin, and is composed of charged particles with charge +e and -e, separated by a distance 9 10-10 m along the y axis
Find the basic and actual transmission losses between two antennas separated by 30 meters operating at 10 MHz when the gain of each antenna is 1.65 dB
A paperweight is made of a solid glass hemisphere with index of refraction 1.50. The radius of the circular cross section is 4 cm. The hemisphere is placed on its flat surface, with the centre directly over the 2.5 mm long line drawn on a sheet of ..
the coefficient of kinetic friction between the table and the block is 0.320. Sand is gradually added to the bucket until the system just begins to move. Compute acceleration of the motion.
After the collision, the 0.177 kg puck has a speed of 1.38 m/s at an angle of 27? to the positive x axis. Examine the velocity of the 0.302 kg puck after the collision.
A wheel with a mass of 40 kg, and a rim radius of 30.0 cm is mounted vertically on a horizontal axis. Find the angular acceleration of the wheel and the linear acceleration of the block
A certain fuel-efficient hybrid car gets gasoline mileage of 55.0 mpg (miles per gallon). If you are driving this car in Europe and want to compare its mileage with that of other European cars, express this mileage in km/l (liter).
A 900- kg car collides with a 1300- kg car that was initially at rest at the origin of an x-y coordinate system. What was the initial direction
The potential difference across a resting neuron in the human body is about 70 mV, How much power does the neuron release
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