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The measured molecular masses of many naturally occurring chemical elements differ appreciably from integer values due to the presence of isotopes of the element in the test sample. Commercially available neon has a measured molecular mass of 20.183.
The gas is known to be a mixture of two isotopes whose molecular masses are 20.0 and 22.0. Determine the mole and mass fractions of each of the neon isotopes present in commercial neon.
A 120-N child is in a swing that is attached to ropes 2.20 m long. Find out the gravitational potential energy associated with the child relative to her lowest position at the following times.
Suppose two electrons in an atom have quantum numbers n = 3 and l =1. (a) How many states are possible for those two electrons? (Keep in mind that the electrons are indistinguishable.)
the m777 lightweight 155mm howitzer is a piece of artillery whose rounds are ejected from the gun with a speed of
A 30kg child slides down a playground slide at a constant speed. find the magnitude of the kinetic friction force acting on the child
A 10.0 meter long, 200N ladder rests against a wall frictionless. Determine the coefficient of friction if the person stops 6.00 meter up the ladder
398 g of water at 64°C is added to ice at 0°C. If the final temperature of the system (which you can assume is isolated) is 0°C, determine how much ice melted
A classmate throws a 1.3-kg book from a height of 1.2 m above the ground straight up into the air. Determine the velocity of the book just before hitting the ground
A block of mass m rests on a horizontal frictionless tabletop. The block is connected by a light rope that passes over a light frictionless pulley to a block of mass 12 kg that hangs suspended from the end of the rope.What is the mass of the block..
A bus accelerates at 1.5 m/s/s from rest for 12s. It then travels at constant speed for 25s, How far did the bus travel
the cue ball in a biliard game travelling at the speed of v=1m/scollides elastically to another ball of the same kind head-on. compute the speed of the two balls after the collision
Mutual induction can be used as the basis for a metal detector. A typical setup uses two large coils that are parallel to each other , find the new value of the induced emf
What is the speed of the train, and is the train traveling away from or toward the bicycle?
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