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a) The rms speed of molecules in a gas at 35.0°C is to be increased by 1.8%. To what temperature should it be raised?
b) What is the rms speed of nitrogen molecules contained in an 8.8 m3 volume at 1.4 atm if the total amount of nitrogen is 1300 mol?
c) (i) Compute the rms speed of a nitrogen molecule at0°C
(ii) Decide how many times per second it would move back and forth across a 7.4 m long room on the average, assuming it made very few collisions with other molecules.
A 3.0-kg wheel in the form of a solid disk rolls along a horizontal surface with a speed of 5.0 m/s. What is the total kinetic energy of the wheel
Units of km
A mass (3kg) on a string lies on a horizontal frictionless surface tied to a central point. How fast can the mass move around the circle without breaking the string
how sure are when youre sayingthose who were born blind only have auditory dreams and those who were blind at an early
Two 10-cm-diameter charged rings face each other, 18.0cm apart. Both rings are charged to + 50.0nC . What is the electric field strength at the center of the left ring
Unpolarized light with an intensity of 275 W/m2 passes by the two polarizers whose transmission axes are at an angle of 30.0° with respect to each other. What is an intensity of the light transmitted through both polarizers.
A defibrillator consists of a 15.3-µF capacitor that is charged to 8.4 kV. What is the average power delivered to the tissues
Power to a cooling fan is turned off when it is turning at 720rpm. The fan makes 1350 revolutions before it comes to rest. Calculate the fan's average angular acceleration
A green photon ( = 551 nm) is absorbed by a free hydrogen atom, initially at rest. What is the recoil speed of the hydrogen atom
The period of a macroscopic pendulum made with a mass of 10 g suspended from a massless string 50 cm long is 1.42 s. Compute the ground-state (zero-point) energy
A block, m1,is resting on a frictionless horizontal surface. This blockis connected to a block, m2, by a string over africtionless pulley that has a mass of 5.0 kg and a radius of 12cm. What are the tensions on opposite sides of the pulley
a conducting sphere that carries a total charge of -6 μC isplaced at the center of a conducting spherical shell that carries atotal charge of +1 μC. determine the charge on the outer surface of the shell
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