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In the ground state of hydrogen, theuncertainty in the position of the electron is roughly 0.10nm. If the speed of the electron is on the order of theuncertainty in its speed, how fast is the electron moving?
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What is the (average) acceleration of a vehicle which speeds up from 22 m/s to 88 m/s in 21.2 seconds? please provide work to explain
Two forced of magnitudes 6.0 N and 8.0 N act on an object. What relationship between the directions gives the smallest magnitude net force and what is this magnitude?
Question: Starting from rest, a computer disk drive is turned on and has constant angular acceleration. If it takes 0.9s for the drive to make it's second complete revolution, find the following: a) How long did it take ...
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Consider the following examples, which involve energy being transformed from one kind to another. Identify the initial input & final output forms of the energy in each case. Identifying intermediate energy conversions ma ...
Question: A small 100 g cart is moving at 1.20 m/s on a friction less track when it collides with a larger, 1.00 kg cart at rest. After the collision, the small cart recoils at 0.850 m/s. What is the speed of the large c ...
Question: A picture window has dimensions of 1.40 m x 2.50m and is made of glass 6.00mm thick. On a winter day, the outside temperature is -15.0?C , while the inside temperature is a comfortable 21.0°C . Part A: At what ...
Question: Tectonic plates are large segments of the earths crust that move slowly. suppose that one such plates has an average speed of v=2.1 cm/ year. a) What distace d, in meters, does the plate move 1.4 seconds at thi ...
Question: In a physics laboratory experiment, a coil with 230 turns enclosing an area of 12.1 cm2 is rotated during the time interval 4.10Ã-10?2 s from a position in which its plane is perpendicular to Earth's magnetic f ...
Question: A semicircle of radius a is in the first and second quadrants, with the center of curvature at the origin. Positive charge +Q is distributed uniformly around the left half of the semicircle, and negative charge ...
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