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In an electric shaver, the blade moves back and forth over adistance of 2.1 mm in simple harmonic motion, with frequency 118Hz. Find
(a) the amplitude (inmm),
(b) the maximum blade speed,and
(c) the magnitude of the maximum blade acceleration.
You are driving east on 8th Street (Tamiami Trail) at a speed of 33. What is the frequency of the siren
A 34.3 kg child swings on a rope with a length of 6.28 metershanging from a tree. At the bottom of the swing, the child is moving at a speed of 4.2 m/s. What is the tension in the rope?
a 4kg mass is on the end of a 80 cm long cord. the mass is pulled to an angle of 35 degrees from the vertical and then
An arrow is fired from a castle tower at an angle of 40 degrees above horizontal, and with a speed of 62 m/s. What is the speed of the arrow as it hits the ork
A sphere of radius a has a radial polarization given by P = \(\alpha r^{n} \) ^r (r_hat) , where \(\alpha\) and n are constants and n is greater than or equal to 0. Find the bound volume and surface charge densities. Find E inside and outside th..
A diver makes 2.5 revolutions on the way from a 11-m-high platform to the water. find the diver's average angular velocity during a dive
High-speed photos of a 220 microg flea jumping vertically indicate that the jump lasts 1.2 ms, What is the flea's change in momentum during its jump
An electron moving to the right at 0.900c collides with a positron moving to the left at 0.900c. What is the wavelength of the protons
A tuning fork vibrating at 516 Hz falls from rest and accelerates at 9.80 m/s2. How far below the point of release is the tuning fork while waves with a frequency of 489 Hz reach the release point? Take the speed of sound in air to be 340 m/s.
Nobel laureate Richard Feynman (1918-1988) once said that if two persons stood at arm's length from each other and each person had 1% more electrons than protons, the force of repulsion between them would be enough to lift a "weight" equal to that..
a 100 w lightbulb generates 94 w of heat which is dissipated through a glass bulb that has a radius of 2.8 cm and is
During a physics experiment, helium gas is cooled to a temperature of 19.0K at a pressure of 6.00×10?2atm. find the rms speed of the atoms
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