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Question: You know that one faraday of charge releases one mole of hydrogen atoms. From that fact determine the value of the charge-to-mass ratio of the hydrogen ion.
The sun appears to move across the sky, because the earth spins on its axis. To a person standing on the earth, the sun subtends an angle of sun = 9.30 x 10-3 rad (see Conceptual Example 2). How much time (in seconds) does it take for the sun to move..
The magnetic component of an electromagnetic wave in vacuum has an amplitude of 85.8 nT and an angular wave number of 4.40 rad/m. What is the rms value of the electric component
two small spheres spaced 20.0 cm apart have equal charge. How many excess electrons must be present on each spere
a convex lens is held over a piece of paper outdoors on a sunny day. when the paper is held 21 below the lens the
In a hydraulic lift, the maximum gauge pressure is 14.3 atm. If the diameter of the output line is 23.7 cm, what is the heaviest vehicle that can be lifted
A turntable that spins at a constant 73.0 {rm rpm} takes 3.60 {rm s} to reach this angular speed after it is turned on. Find its angular acceleration (in {rm rad/s^{2}}), suppose it to be constant, and the number of degrees it turns through while ..
Excellent human jumpers can leap straight up to a height of 95cm off the ground. To reach this height, with what speed would a person need to leave the ground
A woman using a rocket pack hovers near a balcoy. The mass of the woman with gear is 100 kg and her tanks hold 50 kg of rocket fuel. What rate of fuel consumption is required for hovering
A mass less spring is hanging vertically. With no load on the spring, it has a length of 0.34 meter. estimate what is the acceleration of the mass
An electron in the n = 6 state of a hydrogen atom makes a transition to the n = 3, What is the wavelength of the photon emitted
question a small block of mass m is given and initial speed vo up a ramp inclined at angle theta to the horizontal. it
The current density in a 3 μm thick × 75μm wide gold long film is 750,000 A/m2. The current flows along the length of the film. Estimate what is the current in the gold film
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