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Determine the numbers of calories of heat are needed to change 1 gram of water at the 100 degrees C to 1 gram of steam at 100 degrees C?
Watching the motion of the string bit at x = 0 m, you see that it takes it 0.1s to go from its lowest to its highest point and that distance is 0.2m. Write down an explicit expression f(x, t) which
At what temperature will the pressure of the gas reach the bursting point? Eight grams of pentane gas are confined in a bulb of 1.2 liter capacity. The bulb is so weak that it burst if the pressure
A trumpet consists of keys and valves which let the trumpeter change the length of the vibrating air column and the position of the nodes. A bugle consists of no such keys and valves, yet it can sou
A mixture of hydrogen and oxygen is analyzed by passing the mixture over hot copper oxide and through a drying tube. Oxygen reoxidizes the copper formed: Cu +½ O2 à CuO and the Hy
An object is positioned in air all along the axis of the rod. (i) Determine the image position corresponding to object distance of 29.0 cm from the convex end of the rod.
A mixture of water vapor and nitrogen is admitted to a flask which contains a solid drying agent. Immediately after admission, the pressure of the flask is 760 mm Hg. After standing for a period of
This specific block rests on the frictionless surface. Now an arrow which consists of a mass of 0.0500 kg is then shot horizontally at this block, hitting it with an initial speed of 1.93 m/s and st
If the gas is stored under a pressure of 135 atm and at 298 K, A large cylinder for storing compressed gases has a volume of about 1.05 dm3, determine the numbers of moles of the gas are contained in
The crystal has a grating space of d = 0.5A0 and the reflected electrons are passed via a slit. Determine the velocities of the electrons passing via the slit. Determine how many are such velocities
Determine the root-mean-square velocity, average velocity, most probable velocity, and the average kinetic energy of one helium atom. Consider the results obtained if the calculation is based on one
Determine the magnitude of the total torque applied on the branch by the children? Suppose that the axis is situated where the branch joins the tree trunk and is perpendicular to the plane made by t
A gas sample is known to be a mixture of butane and ethane. A bulb of 200 cm3capacity is filled with the gas o a pressure of 750 mm Hg at 200C. Determine the mole percent of each gas in the mixture if
A mass of 5.00 kg is suspended through a vertical steel wire 0.500 m long and 6.0 x 103 cm2 in cross-sectional area. Suspending from the bottom of this mass is an alike steel wire, from which in tur
Describe the significance of the result obtained in (3), i.e., explain how does the mean free path compare with the diameter of methane molecule?
A resistor comprises of a solid cylinder of radius r and length L. The resistor consists of resistance R and is carrying a current. Employ the Pointing vector to compute the power radiated out of th
2.0 g of oxygen, one gram of nitrogen and the 0.85 g of helium are placed in a 3.0 dm3 flask at the 298 K. Calculate the partial pressure of each gas, the total pressure, and the composition of
Unpolarized light is incident on the stack of two polarizing sheets. Determine at what angle should the transmission axes of each polarizer be oriented (with respect to one other) so that the only 1
Explain why was it more important to know the exact volume of acid added to the calorimeter in each reaction than to know the exact volume of NaOH added?
Assume that Tinkerbell consists of a mass of around .870 kg, determine how high above Tinkerbell's original position does she and the ball increase, avoiding air resistance?
Explain how could you separate phenyl acetic acid from the toluene? When carbon dioxide is bubbled thru a solution of benzyl magnesium bromide, and the resulting mixture is acidified, phenyl acetic
How many grams of K20 were in the sample that was analyzed if the O2 produce from the reaction exerted a pressure of 3.23x 10 to the 3rd torr in a 10.0 mL volume at 25 degrees Celsius.
The middle sheet consists of its transmission axis aligned at 45 degrees with respect to the top and bottom sheets. Determine what fraction of incident unpolarized intensity is transmitted via the s
Discuss how long does it take DDT to decay from the 375 ppbm to15 p pbm in a soil sample ? A biochemist studying the break down in soil of the insecticide DDT finds that it decays by a first-order
Discuss what would then be the pressure in the bulb be, in mmHg, if the number of moles were reduced to 8.51x10e-4? Then about what temperature would the gas in the bulb need to be heated to raise t