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(a) An ideal gas occupies a volume of 1.0 cm3 at 20°C and atmospheric pressure. Obtain the number of molecules of gas in the container.
_________molecules
(b) If the pressure of the 1-cm3 volume is reduced to 1.6 × 1011 Pa (an extremely good vacuum) while the temperature remains constant, determine how many moles of gas remain in the container?
_________mol
A 1.0-kg block of ice is initially at 0°C. Heat is added to this system, and the entropy is increased by 357.1 J/K. How much of the ice melts
A coin placed 29.0 cm from the center of a rotating, horizontal turntable slips when its speed is 50.2 cm/s, What is the coefficient of static friction between coin and turntable
If the frequency is held constant at 1350 Hz and the length of the closed (at both ends) tube is increased from zero, sketch the tube showing this expansion of length and the position of the nodes and anti nodes for the first three resonances.
A physics book slides of a horizontal tabletop wit a speed of1.10m/s. it strikes the floor in 3.50s ignore air resistance. calculate the heigth of the table top above the floor
a sled is resting on packed snow. the coefficient of kinetic friction is now only 0.12. if a person weighing 650 N sits on the sled, what force is needed to pull the sled across the snow
In a double-slit experiment, the second-order bright fringe is observed at an angle of 0.56°. If the slit separation is 0.12 mm, then what is the wavelength of the light?
a circular surface with a radius of 0.061 m is exposed to a uniform external electric field of magnitude 1.32 x 104 nc.
the coefficient of static friction between the tires of a car and a horizontal road is 0.495. as the car brakes what is
Two objects attract each other with a gravitational force of magnitude 9.8 x 10-9 Newton when separated by 19.3 centimeter. determine what is the mass of each
The aire outside a hot-air balloon has a temperature of 17 C. Assume the pressure of the gas inside the balloon is roughly the same with the pressure outside of the balloon. What is the temperature of the air inside the balloon
If the volume of an ideal gas is held constant, what happens to the pressure if the absolute temperature is cut in half?
in shakespeares play a midsummer nights dream the character puck boasted ill put a girdle round about the earth in
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