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A 19-kg chandelier is suspended from the ceiling by four vertical steel wires. Each wire has an unloaded length of 5 m, how far do the wires stretch
You are driving along the street at the speed limit (35mph) and 50 meters before reaching a traffic light you notice it becoming yellow. What is your speed as you cross the intersection
A 200 g ball of putty falls vertically into a 2.50 kg cart that is rolling freely at 2.00 m/s on a horizontal surface. What is the final speed of the cart
A parallel plate air filled capacitor having area 40cm^2 and plate spacing 1.0mm is charged to a potential difference of 600V. find the energy density between the plates
Where does the energy of an objects inertia come from. You can throw a ball, And how is the ball interacting with the space around it to be moving in the first place?
A cylinder contains a mixture of helium and argon gas in equilibrium at a temperature of 151? C. Boltzmann's constant is 1.38066 × 10?23 J/K, What is the rms speed of argon
A 6.50%u03BCF capacitor that is initially uncharged is connected in series with a 4700%u03A9 resistor, Just after the circuit is completed, what is the voltage drop across the capacitor
two blocks are connected by a string over a disk-shaped pulley with mass M8.5 kg and outermost readuis R = 0.10m. Calculate the acceleration of the hanging block
An AC adapter for a telephone-answering unit uses a transformer to reduce the line voltage of 120 V (rms) to a voltage of 10.0 V. What is the rms power delivered to the transformer
You need to make an ac generator with a sinusoidal output of 14.0 V amplitude and frequency 50 Hz. At what angular frequency should the coil be rotated
In a model ac generator, a 498 turn rectangular coil, 10.0 cm by 29 cm, rotates at 122 rev/min in a uniform magnetic field of 0.62 T. What is the maximum emf induced in the coil
Although physics problems often assume that inductors have zero resistance, actual inductors can, in fact, have appreciable resistance. What is the inductance of the inductor
A simple pendulum is made of a small blob of mass m = 9.500 kg attached to the end of an inextensible wire. What is the magnitude of the tension in the wire
Two identical guitar strings are prepared such that they have the same length (2.43 m) and are under the same amount of tension. find the wave propagation speed on the guitar strings
You have a string with a mass of 0.0127 kg. You stretch the string with a force of 9.19 N, giving it a length of 1.83 m. What is the wavelength of the standing wave you create
Consider a three dimensional rectangular infinite potential well with sides of length L, 2L and 3L. What is the energy of the first excited state relative to the energy of the ground state
You bike at 11.5 m/s directly away from your neighbor\'s trumpet sound and toward the sound of another neighbor\'s trombone, What frequency is the trombonist producing
You are walking along a small country road one foggy morning and come to an intersection. At what speed is the ambulance traveling
A negative charge of -0.525%u03BCC exerts an upward 0.205N force on an unknown charge 0.310m directly below it. What is the unknown charge in microcoulombs
A ball of radius 0.200 m rolls with a constant linear speed of 3.22 m/s along a horizontal table. What is the angular displacement of the ball while the ball is in the air
A baseball pitcher throws a baseball horizontally at a linear speed of 42.5 m/s (about 95 mi/h). find the tangential speed of a point on the "equator" of the baseball
An auto race takes place on a circular track. A car completes one lap in a time of 19.5 s, Find the average angular speed and the radius of the track
An automobile tire has a radius of 0.430 m, and its center moves forward with a linear speed of v = 14.0 m/s. Determine the angular speed of the wheel
A motorcycle accelerates uniformly from rest and reaches a linear speed of 20.4 m/s in a time of 8.91 s. What is the magnitude of the angular acceleration of each tire
A thin rod (length = 1.762 m) is oriented vertically, with its bottom end attached to the floor by means of a frictionless hinge. find the magnitude of the angular acceleration of the rod