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A loundspeaker diaphragm is producing a sound for 2.1 s by moving back and forth in a simple harmonic motion. The angular frequency of the motion is 8.44 104 rad/s. How many times does the diaphragm move back and forth?
The positions of three particles, written as (x, y coordinates, are: particle 1 (mass 3.7 kg) at (4 m, 0 m); What is the location of the center of mass
A simple pendulum is made from a string that is 0.60m inlength with a mass of 0.2kg attached to the free end. The mass ispulled to one side through a small angle and released fromrest.
a mass attached to a spring oscillates according to the equation xt 24sin16t 0.50 where x is in cm and t in seconds.
a girl throws a rock horizontally with a velocity of 10 m/s from a bridge. It falls 20 m to the water below. how far does the rock travel before striking the water
A 22 gauge NiAg wire is 22.5 km long. The resistivity of the NiAg wire is 33.0*10^-8 Ohm*m. The cross sectional area of the wire is 3.22*10^-7. How much energy is dissipated in a day
A charged line of linear charge density ? has been bent into a circular arc of radius r that makes an angle ? with its center. (A). Find the magnitude of the electric field at the center of this arc. (Does your result make sense, what should it be..
Particle X has a speed of 0.790 c and a momentum of 5.06×10-19 kgm/s. What is the mass of the particle? What is the rest energy of the particle
A railroad car of mass 2.52 104 kg is moving with a speed of 4.06 m/s. It collides and couples with three other coupled railroad cars, How much mechanical energy is lost in the collision
Suppose an object is placed 6 cm in front of a lens that has a focal length of 4 cm. Where is the image located? What are the magnification and the character of the image
A 500-g particle is located at the point r=4m*i+3m*j-2m*k and is moving with velocity v=5m/s*i -2m/s*j+4m/s*k. What is the angular momentum of this particle about the origin
An inductor has inductance of 0.240H and carries a current that is decreasing at a uniform rate of 19.0mA/s. Find the self-induced emf in this inductor
A laser emits a narrow beam of light. The radius of the beam is 9.6 mm, and the power is 1.9 mW. What is the intensity of the laser beam
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