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Inside of a nucleus nucleons (protons and neutrons) are confined within dimensions of 15x10-15m. Treating nucleons are particles in an infinite well, calculate the lowest energy of a photon emitted due to transition of nucleons between nuclear energy levels.
By calculation, determine the wavelength of three principal visible lines of hydrogen from energy transitions n=3, 4
An astronaut on the moon applies a100N horizontal force to a 10kg mass at rest on a table. At what rate does the mass accelerate
You know your mass is 70kg , but when you stand on a bathroom scale in an elevator, it says your mass is 94kg . What is the acceleration of the elevator
A certain airplane has a speed of 250.0 km/h and is diving at an angle of 30.0° below the horizontal when the pilot releases a radar decoy. The horizontal distance between the release point and the point where the decoy strikes the ground is 700 m..
A rocket is fired at a speed of 66.0 m/s from ground level, at an angle of 53.0 ° above the horizontal. By how much does the rocket clear the top of the wall
If you start with two sinusoidal waves of the same amplitude traveling in phase on a string and then somehow phase-shift one of them by 12.50 wavelengths
A convex mirror has a focal length of -48.0 cm. A 12.0-cm-tall object is located 36.0 cm in front of this mirror. Using a ray diagram drawn to scale, determine the location of the image. Note that the mirror must be drawn to scale
A sinusoidal electromagnetic wave from a radio station passes perpendicularly through an open window that has area of 0.600m^2. How much energy does this wave carry through the window
A copper cylinder with a temperature of 277 K is found to emit 179 J of energy each second. what is its surface area
Standing on the surface of a small spherical moon whose radius is 6.75·104 m and whose mass is 6.71·1018 kg, What maximum height above the surface of the moon will the rock reach
A 1200-turn coil of wire 2.30cm in diameter is in a magnetic field that increases from 0 T to 0.110T in 12.0ms. What is the emf of the coil
A spring is oscillating with a frequency of 1.7Hz. 3.9 seconds after the spring is released it is -20cm from equilibrium. Find the amplitude of the spring
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