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Q1. A hydrogen atom has a diameter of around 1.05×10-10 m, as defined by the diameter of the spherical electron cloud around the nucleus. The hydrogen nucleus has a diameter of approximately 2.36×10-15 m. For the scale model, represent the diameter of the hydrogen atom by the length of an American football field (100 yards = 300 ft), and determine the diameter of the model nucleus in millimeters.
Q2. A 151 kg rocket moving radially outward from Earth has a speed of 5.03 km/s when its engine shuts off 226 km above Earth's surface. (a) Assume negligible air drag; find the rocket's kinetic energy when the rocket is 535 km above Earth's surface. (b) What maximum height (in km) above the surface is reached by rocket?
Calculate the coil's self-inductance. If the current decreases uniformly from 5.00 to 2.00 in 3.00, estimate the self-induced emf in the coil.
The path of an electron, travelling at 3.7 × 104 meters/second, is making the right angle to a magnetic field. A single electron experiences a force of 2.2 × 10-15 Newton's while in the field. What is strength of the magnetic field .
How much work is completed by the system in this process. Determine the increase in entropy produced by the parachutist; assume the air temperature is 21 degrees C. How much work is completed by the system in this process.
An electric field of 220000 N/C points due west at a certain spot. What is the magnitude of the force that acts on a charge of -10C at the spot.
Two boats start together and race across a 46 km wide lake and back. Boat A goes across at 44 km/h and returns at 48 km/h. Boat B goes across at 27 km/h, and its crew, realizing how far behind it is getting, returns at 69 km/h. Turnaround times are n..
The angular momentum of Earth is constant
A vessel whose walls are thermally insulated contains 2.00 of water and 0.550 of ice, all at a temperature of 0.0. The outlet of a tube leading from a boiler in which water is boiling at atmospheric pressure is inserted into the water.
What is the magnitude of the magnetic field. Evaluate this to the tension as the boat is raised and held at rest so the angle becomes 25 degrees.
Estimate the speed of the water just before striking the turbine blades (overlook air resistance).
Find density of the object
Two meteoroids are heading for earth. Their speed as they cross the moon's orbit is 2.3 km/s. The second meteoroid misses for earth by 2680 km. What is its speed at its closest point.
What is vertical component of the acceleration
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