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The resistance of each brake light on an automobile is 6.6 ohms. Use the fact that the cars have a 12 V electrical system to compute the current flow in each bulb.
An implanted pacemaker supplies the heart with 72 pulses per minute, each pulse providing 3.0 V for 0.95 ms, Find the current that flows during a pulse
A sound wave of frequency 171 Hz has an intensity of 3.29 ?W/m2. What is the amplitude of the air oscillations caused by this wave
Net average force using the concepts of Newton’s second law.
A block of wood of mass 2 kg is suspended by long, light strings and is at rest. A bullet of mass 40 g, strikes and remains in the block, causing it to swing. The utmost height of the block above its rest position is 51 cm.
A 110kg clock initially at rest on a horizontal floor requires a 607N horizontal force to set it in motion. After the clock is in motion, horizontal force of 525 N keeps it moving with a constant velocity.
A man pushes a 16kg block from rest to speed v doing 1200 j of work in the process, during this time, find the horizontal force exerted on the block
A charge of -4.26 micro-Coulombs is fixed at the center of a compass. find direction of the net electrostatic force acting on the charge
a block of mass m=0.2kg , in simple harmonic motion, has an amplitude of 3.5cm and a maximum speed of 70 cm/s. What is the angular frequency for the oscillation in rad/s?
For research purposes a sonic buoy is tethered to the ocean floor and emits an infrasonic pulse of sound. Determine the wavelength of the sound
block A (mass 2.28 kg) rests on a tabletop. It is connected by a horizontal cord passing over a light, frictionless pulley to a hanging block B (mass 2.57 kg ), evaluate the tension in the cord
The heat capacity at constant volume of a certain amount of a monatomic gas is 47.4 J/K. What is the heat capacity of the gas at constant pressure
a spring has a constant k=8.75 N/m. if the spring is displaced 8.150 m from its equilibrium position, what is the force that the spring exerts
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