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Alpha-particle scattering experiments using uranium (Z = 92) as the target material show that the alpha-particles experience a pure Coulomb repulsion only for energies up to 8.8 MeV. Estimate the radius of the uranium nucleus.
Light of wavelength 588 nm falls on a double slit. First-order bright bands appear 3.65 cm from the central bright band. The screen is 1.20 m from the slits. How far apart are the slits.
When you submerge a 1 kg gold statue into the water and measure the volume of displaced water, show that, for pure gold, the volume of water displaced will be 51.8 cm^3.
A 1.20 brick is sliding next to on a rough horizontal surface at 15.0 .If the brick stops in 4.30, how much mechanical energy is lost?
The Earth is constantly being bombarded by cosmic rays, which consist mostly of protons. Assume that these protons are incident on the Earth's atmosphere from all directions at a rate of 1090. protons per square meter per second.
Intuitively, the man will not catch the bus unless he is running fast enough. In mathematical terms, there is a constraint on the man's speed so that the equation above gives a solution for that is a real positive number.
A centrifuge in a medical laboratory rotates at an angular speed of 3400 rev/min, Find the constant angular acceleration of the centrifuge
Light of intensity 2.5W/m2 passes through the pupil of one of your eyes and eventually falls on your retina. The radius of the pupil is controlled by the iris.
A rocket is fired at a speed of 82.0 m/s from ground level, at an angle of 31.0 ° above the horizontal. The rocket is fired toward an 6.95-m high wall, which is located 18.0 m away.
Satellite is in a circular orbit about the earth (ME = 5.98 1024 kg). The period of the satellite is 3.70 104 s. What is the speed at which satellite travels.
what is the new value of energy stored in it. What is the force that is acting between them.
The potter can stop the wheel in 7.0 s by pressing a wet rag against the rim and exerting a radially inward force of 68 N. Find out the effective coefficient of kinetic friction between the wheel and the wet rag.
A heat engine has a maximum possible efficiency of 0.800. If it operates between a deep lake with a constant temperature of 287.0 k and a hot reservoir, what is the temperature of the hot reservoir?
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