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Q. A particle is confined in a cubic box, each side measures 1Angstrom. The mass of the particle is 10-30kg. The potential energy inside the box is zero, outside the box it is infinite.
Use the Heisenberg uncertainty principle to find the lowest possible momentum for the particle and calculate the lowest possible energy for this particle in eV.
What is de Broglie's wavelength corresponding to the lowest possible momentum?
Q. suppose that we could use the energy released when 5g of antimatter annihilates 5g of matter to lift a mass 3 km from the Earth's surface. how much mass could we lift? answer in unites of kg.
The wire is cut at point P. Will the potential difference between points A and B increase, decrease, or remain the same? Give reason for.
How various kilograms of nitrogen are boiled away in time of 7.50 h. car that hits a line of water barrels and takes 1.8s to stop.
Expand Lagrangian to second order about equilibrium coordinates, r_0, phi = wt and find the condition for stability against small oscillations.
A diffraction grating with 330 {rm lines/mm} is 1.00 {rm m} in front of a screen. What is the wavelength of light whose first-order maxima will be 17.0 {rm cm} from the central maximum on the screen.
If his arms are capable of exerting a force of 1400 on the vine, what is the maximum speed he can tolerate at the lowest point of his swing? His mass is 82, and the vine is 6.00 long.
Distance between focal plane and lens
What is an expression for , the position of mass I as a function of time? imagine that position is measured in meters and time is measured in seconds.
A 370-kg sailboat has an acceleration of 0.87 m/s2 at an angle of 64° north of east. Find the magnitude and direction of the net force that acts on the sailboat.
Water flows through a pipe with circular cross section. The fluid has a radius of 5.0 cm and flows at 2.0m/s. The output has a radius of 2.50 cm. find the output velocity.
How fast must the bat fly, v_b, to hear a beat frequency of 205 rm {Hz}.
pipe open at one end only has a fundamental frequency of 237 Hz. A second pipe, initially identical to the first pipe, is shortened by cutting off a portion of the open end. Currently, when both pipes vibrate at their fundamental frequencies, a beat ..
A diverging lens (f = -12 cm) is located 20.0 cm to the left of a converging lens (f = 34.5 cm). A 3.00 cm tall object stands to the left of the diverging lens, exactly at its focal point.
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