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An RL circuit in which the inductance is L = 4.00 H and the resistance is R = 5.00 omegacap.gif is connected to a 21.0 V battery at t = 0. (a) What energy is stored in the inductor when the current
(a) What does this person hear, constructive or destructive interference? Why? (b) They now walk towards one of the speakers. How far from the center must they walk before they first hear the sound
The magnitude of the magnetic field varies in the time according to the expression B=.0100t+.0400t^2, where t is in seconds and B in telsas. Calculate the magnitude of the induced emf in the coil at
The distance from particle A to B is 0.500 and the distance from particle B to C is 0.250. Find the magnitude and direction of the net gravitational force acting on each of the three particles (let
The 23 kg cylinder in Problem 15.97 is released from the position shown and falls onto a nonlinear spring. In terms of the spring stretch, S, the potential energy of the spring is given by V = 0.5kS
A mass attached to a spring oscillates horizontally on a frictionless table with a position given by: Drawing a complete blank on how to find period of oscillation. (i) What is the amplitude of the os
A spring with a spring constant of 120 N/m lies on a horizontal frictionless table. The spring is attached to a 1.5-kg mass, which is pulled 0.25 m from equilibrium and released. (i) What is the ini
A lens with focal length 50 mm and a maximum aperture f/2 forms an image of an object 9.0 m away. A. What is the numerical aperture of the lens?
A current-carrying wire is in a mangentic feild with the directon of the current parallel to that of the field.
Over how many pixels will a green (500 nm) quantum dot appear on the camera? If we want the image of a quantum dot to take up about 3x3 pixels, we can build an optical system to magnify the image. W
A) Astronomers on planet Zog whose sun is 1.4 x 10^11 m away, measure their solar flux to be 1250 W/m^2. What is their sun's total energy output?
If we want the image of a quantum dot to take up about 3x3 pixels, we can build an optical system to magnify the image. What magnification should it have?
If the total electric current reaching the Earth's surface is nearly constatnt at 1000 A, approximately how much electrical energy is dissipated each second by the atmosphere?
Microtubules are protein filaments that are only 25 nm in diameter. This is smaller than the diffraction limit for visible light. Assume that you have microtubules labeled with rhodamine 6B dye. (A
The electrical potential of the ground was measured at the top off a hill. If the height of the hill is 20 meters above the level of the surrounding plain, what will be the measured voltage?
Transverse waves with a speed of 52.0 m/s are to be produced on a stretched string. A 5.40-m length of string with a total mass of 0.0600 kg is used. (a) What is the required tension in the string?
Determine the distance along the floor from the point of initial impact where the ball will no longer bounce above a height of 10 cm on the earth and on the moon.
An object of mass 1.60 kg is oscillating freely on a vertical spring with a period of 0.710 s. Another object of unknown mass on the same spring oscillates with a period of 1.26 s.
A harmonic wave is traveling along a rope. It is observed that the oscillator that generates the wave completes 43.0 vibrations in 25.0 s. Also, a given maximum travels 422 cm along the rope in 8.0
The student of mass 70 kg walks slowly toward the center of the platform. If angular velocity of the system is 2 rad/s initially, what is the angular velocity of the system when the student is 0.5m
A small solid disk of mass m and radius r rolls without slipping down a ramp. If it starts from rest at the top of the ramp, what is the minimum value of h, in terms of R, such that the disk comple
(a) How much voltage is induced in the loop? (b) If B is pointing out of the paper toward you, which way does the induced current flow?
Is this the same as the air at 1000mb on the windward side of the mountains having a temperature of 294.5K and a mixing ratio of 10g/kg or is it the same as the air at 800mb with a temperature of 27
Assume the ladder is uniform and has a mass of 15.2 kg while the person has a mass of 76.5 kg. Set up the equation of equilibrium. Simplify them but do not solve them