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A circular disk of radius 2.0 m rotates, starting from rest, with a constant angular acceleration of 20.0 rad/s2. What is the tangential acceleration of a point on the edge of the disk at the instant that its angular speed is 1.0 rev/s?
A 1.00 kg block of ice at 0 C and 1.00 atm melts completely to water at 0C. calculate the change of the etrophy of the ice during the melting process
The surfaces of the lens have radii of curvature 27.1 cm (located on the object side of the lens), determine the index of refraction
A mass of 3.90 kg is suspended from a 1.55 m long string. It revolves in a horizontal circle. Calculate the angle between the string and the vertical
A particular organic molecule forms an electric dipole by possessing an effective charge separation of 0.177 nm for a pair of ±1.60 × 10-19-C charges. (a) What is the magnitude of the molecule's electric dipole moment?
An amplifier supplies 5.0 Watts to a perfectly efficient loudspeaker at one end of a 10.0 cm diamter tube filled with air. What is the intensity of the sound at the other end of the tube
When light of wavelength 350 nm falls on a potassium surface, electrons having a maximum kinetic energy of 1.31 eV are emitted. Find values for the following. the work function of potassium
A proton traveling to the right along the x-axis enters a region where there is a magnetic field of magnitude 3.7 T directed upward along the y-axis. The charge on a proton is 1.60×10?19. If the proton experiences a force of 3.6 × 10?12 N, find its s..
An electron has a momentum that is two times larger than its classical momentum. Find the speed of the electron
A ray of light is incident normally on a glass plate 6.00 cm thick and of refractive index n = 1.29, find the increase in the distance the ray travels in the glass
An ideal gas is expanded isothermally from 20L to 30L. During thismethod , 6J of energy is expended by the external mechanism that expanded the gas. Which of the statements is correct.
A specimen of oil having an initial volume of 600cm3 is subjected to a pressure increase of3.6×106Pa, What is the bulk modulus (in Pa) of the material
A gas of diatomic molecules is in equilibrium at a temperature of 340 K. What is the mean angular momentum of the molecules
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