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1. Compute the number of electrons in a small, electrically neutral silver pin that has a mass of 12.0 g. Silver has 47 electrons per atom, and its molar mass is 107.87 g/mol.?
2. Imagine adding electrons to the pin until the negative charge has the very large value 3.00 mC. How many electrons are added for every 109 electrons already present?
a hobby telescope has an objective lens with a focal length of 76cm and an eyepiece with a focal length of 8.2mm. we
a small circular hole 9.00mm in diameter is cut in the side of a large water tank 24.0m below the water level in the
A 115 grams ball is moved to the right at 5.8 meter per second collides head-on with a 185 gram ball that is moving to the left at 2.3 m/s. find the speed and direction of each ball after the collision
Project Seafarer was an ambitious program to construct an enormous antenna, buried underground on a site about 10000 km2 in area. Its reason was to transmit signals to submarines while they were deeply submerged. Ordinarily, electromagnetic radiation..
A 3.3 k and a1.8 k resistor areconnected in parallel and this combination is connected in serieswith a 1.8 k resistor. If each resistor is rated at 1/2 W, what is the maximum voltage that can be applied across the whole network?
A baking dish is removed from a hot oven and placed on a cooling rack. As the dish cools down to 34° C from 189° C, What was the net radiant power of the baking dish
Water is supplied to an office building 41.5 m high through a pipe at ground level. Find the minimum pressure in the supplypipe so that water can reach the top floor of the building.
a dockworker loading crates on a ship finds that a 22 kg crate initially at rest on a horizontal surface requires a
Starting from its nest, an eagle flies at constant speed for 4.0min due east, then 4.2min due north. How long is the eagle in the air
What is the amount of the normal force on the charge on the surface in Newtons, when including both the weight of the object and the electric force on it?
A cube of wood having an edge dimension of 20.3 cm and a density of 647 kg/m3 floats on water. What is the distance from the horizontal top surface of the cube to the water level?
In a film of Jesse Owen's famous long jump in the 1936 Olympics, What minimum speed did he need at launch if he was also noted to be traveling at 6.5 m/s at the top of the arc
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