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In the ground state of hydrogen, the uncertainty in the position of the electron is roughly 0.10 nm. If the speed of the electron is on the order of the uncertainty in the speed, how fast is the electron moving?
A horizontal 797N merry-go-round is a solid disk of radius 1.53 m, started from rest by a steady horizontal force of 50.4 N applied tangentially to the edge of disk. Determine the kinetic energy of the disk after 3.06 s.
A bird stands on a dc electric transmission line carrying 2500 A, What is the potential difference between the bird's feet
questionsome of properties of a diatomic molecule no can be described in terms of a effortless model in which two atoms
a railroad diesel engine coasting at 12 km/h runs into stationary flatcar. how fast are they moving after the collision
A train sounds its horn as it approaches an intersection. The horn can just be heard at a level of 56 dB by an observer 10 km away. What is the average power generated by the horn
A spaceship of mass 2.2×106kg is cruising at a speed of 5.4×106m/s when the antimatter reactor fails, blowing the ship into three pieces. What is the speed of the third piece
two 2 cm 2 cm metal electrodes are spaced 1.7 mm apart and connected by wires to the terminals of a 9.0 v battery.1.
A boat with speed of 10m/s, in still water, tries to cross a river with a current flow of 2.0m/s, and is 100m wide. how far down river does it land
A spherical balloon of volume 4.08 103 cm3 contains helium at a pressure of 1.21 105 Pa. How many moles of helium are in the balloon
Two wires A and B are of equal length. Each is attached at one end to the ceiling and to a weight at the other end. The cross-sectional area of A is 2.00 mm2 and that of B is 4.00 mm2.
In a certain region, the earth's magnetic field has a magnitude of 5.4 × 10-5 T and is directed north at an angle of 49° below the horizontal. Determine the bullet's electric charge
One type of slingshot can be made from a length of rope and a leather pocket for holding the stone. The stone can be thrown by whirling it rapidly in a horizontal circle and releasing it at the right moment. Such a slingshot is used to throw a sto..
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