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Oxygen has a molar mass of 32.0. The root mean square of an oxygen molecule at 294K= 479 m/s. What is its average translational kinetic energy at that speed?
For a glass lens submerged in water (n=1.33), the critical angle of incidence at which total internal reflection begins to happen is 60.1 degrees. What is the index of refraction of the glass
question1using a simply pulley or rope system a crewman on an arctic expedition is trying to lower a 6.30 kg crate to
A flight attendant pulls her 73 N flight bag a distance of 245 m along a level airport floor at a constant velocity. The force she exerts is 45 N at an angle of 54° above the horizontal.
Evaluate if the ball clears the crossbar, what is its height with respect to the crossbar when it reaches the plane of the crossbar?
how much time passes before the brick lands on the ground.
In an L-R-C series circuit, the rms voltage across the resistor is 28.4 V, across the capacitor it is 91.4 V and across the inductor it is 49.3 V. What is the rms voltage of the source
Two small spheres have a mass 9.0g and having an electric charge q are suspended by a length of 32cm. Find Electrical Charge in C, Conducting rod 21.0 cm bent into semicircle. Linear density -5.20 * 10^-8 C/m. Find Electrical Potenial at the center..
find the coefficient of linear expansion for the material of which the rod is made.
An automobile fuel tank is filled to the brim with 58.9 liters (15.7 gallon) of gasoline at 13.3oC. Immediately afterward, the vehicle is parked in the Sun, How much gasoline (in Liter) overflows from the tank
q1. a propeller spins at 1890 revmin.a what is its angular velocity in rads?b what is the angular displacement of
Consider the four masses. Find the total gravitational potential energy of this system. How does your answer to part A change if all the masses in the system are doubled.
A jet airplane flying over Chyenne, Wyoming, has an air speed of 260 m/s in a direction 5.0 degrees south of west. What is the velocity of the airplance relative to the earth
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