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The nucleus of an atom consists of protons and neutrons (no electrons). A nucleus of a carbon-12 isotope contains six protons and six neutrons, while a nitrogen-14 nucleus comprises seven protons and seven neutrons. You perform a nuclear physics experiment in which you bombard nitrogen-14 nuclei with very high speed carbon-12 nuclei emerging from a particle accelerator. As a result of each such collision, the two nuclei disintegrate completely and a mix of different particles are emitted, including electrons, protons, antiprotons (with electric charge –e each), positrons (with charge e each), and various neutral particles (including neutrons and neutrinos). For a particular collision you detect the emitted products and find 18 protons, 5 antiprotons, 8 positrons, and 29 neutral particles. How many electrons are also emitted? Answer ________electrons
A simple barometer has a thin layer of water on top of the mercury column. What is the atmospheric pressure
A 0.410-kg blue bead slides on a frictionless, curved wire, Find the maximum height the green bead rises
A U-shaped tube is partly filled with water and partly filled with a liquid that does not mix with water. what is the density of the liquid
If an electron makes a transition from the n = 6 Bohr orbit to the n = 2 orbit, determine the wavelength of the photon created in the process
A current of 38.9mA flows in a silver wire of diameter 3.33 mm. Find the electric field strength inside the wire
Jack and Jill are maneuvering a 3400 kg boat near a dock. Initially the boat's position is m and its speed is 1.0 m/s. How much work does Jill do
a salesman can contact either one or two customers per day with probability 13 and 23 respectively. each contact will
Harry Potter (55kg) is riding his broom north when a Slytherin casts a spell to knock him from the broom. what is Harry's velocity
a kereru new zealand wood pigeon travelling at 1.5 m/s due west has an elastic collision with an airbus a380 aeroplane. with what speed is the kereru travelling after the collision?
A window washer with a mass of 79.0 kg stands a distance, D = 0.800 m, from the left end of a plank of length, L= 1.90 m, Find T2, the tension in the right cable
A person's eyeball has a diameter D (measured from lens to retina). find Where is this person's near point and far point
A diving board of length 3.00m is supported at a point 1m from the end, and a diver weighing 520 m stands at the free end . The diving board is of uniform cross section and weighs 270m.
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