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You pull downward with a force of 24.1 N on a rope that passes over a disk-shaped pulley of mass 1.35 kg and radius 0.0785 m. The other end of the rope is attached to a 0.648-kg mass. Calculate the tension in the rope on both sides of the pulley.
A concrete highway is built of slabs 14m long (20 degrees Celsius). How wide should the expansion cracks between the slabs be
The temperature coefficient of resistivity for the metal gold is 0.0034 (C°)-1, and for tungsten it is 0.0045 (C°)-1. what is the percentage increase in the resistance in a tungsten wire
In a physics lab, light with a wavelength of 560nm travels in air from a laser to a photocell in a time of 16.9ns, What is the wavelength of the light in the glass
A spark plug in an automobile engine consists of two metal conductors that are separated by a distance of 1.1 mm, What is the magnitude of the potential difference V between the conductors
You are given a spherical mirror and wish to determine its properties. You place an object on its axis, Find the mirror\'s focal length
A Carnot engine has a power output of 130 kW. The engine operates between two reservoirs at 20°C and 500°C, How much energy does it take in per hour
q1. a toy train rolls around a horizontal 1.2--diameter track. the coefficient of rolling friction is 0.15.what is the
The coil of a galvanometer has a resistance of 18.6 ?, and its meter deflects full scale when a current of 6.48 mA passes through it. What is the maximum current that this ammeter can read
Another approach to the Lorentz Transformations. Relativists often use a quantity calledrapidity to describe the frame transformations. determine the function f(R)
A When the magnetic flux through a single loop of wire increases by 30 Webers, a current of 40.0 A is induced in the wire. over what time did the flux change
you kick a soccer ball 15 meters without hurting your foot much. you then pump the ball up until it is really hard the
Two carts collide in a perfectly elastic collision. Cart A has a mass of 1.2 kg and an initial velocity of 0.13 m/s. What is the final speed of each cart
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