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A system does 136 J of work on its environment and gains 66 J of heat in the process.
(a) What is the change in the internal energy of the system?
(b) What is the change in the internal energy of the environment?
According to the shop manual, when drilling a 12.1-mm-diameter hole in wood, plastic, or aluminum, a drill should have a speed of 1400 rev/min. find the maximum linear speed of any part of the bit
A person sees clearly wearing eyeglasses that have a power of -5.00 diopters, If the person wants to switch to contact lenses placed directly on the eyes, what lens power should be prescribed
A ball is thrown horizontally from the top of a 60.0-m building and lands 100.0 m from the base of the building. Ignore air resistance. (a) How long is the ball in the air?
A 130kg mail bag hangs by a vertical rope 3.3m long. As the bag is moved to this position, how much work is done by the worker
In open heart surgery a much smaller amount of energy will defibrillate the heart. Find the amount of stored charge
Two long parallel wires each carry a current of 5. A directed to the east. The two wires are separated by 8 cm. What is the magnitude of the magnetic field at a point that is 5.0 cm from each of the wires.
The scale of a spring balance reading from 0 to 235rm {N} has a length of 15 rm{cm}. A fish hanging from the bottom of the spring oscillates vertically at a frequency of 2.7rm {Hz}. What is the mass of fish? In Kg.
The electric field in an xy plane produced by a positively charged particle is 4.94(6.9i + 4.4j)N/C at the point (5.9, 5.8) cm, Determine the x and y coordinates of the particle
an object with a mass 2.70kg is executing simple harmonic motion, attached to a spring with spring constant k=280 N/m. What is the frequency of oscillation of the object
An object with a mass of 72.0 g displaces 590.0 ml of water when it is completely immersed. What is the buoyant force on the mass?
A sphere completely submerged in water is tethered to the bottom by a string. The tension in the string is 1/5 (aka one-fith) the weight of the sphere. What is the density of the sphere
A block of mass M = 5.90 kg, at rest on a horizontal frictionless table, is attached to a rigid support by a spring of constant k = 5960 N/m. find the amplitude of the resulting simple harmonic motion
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