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A force, 20N, is applied to a 2 kg block on a tabletop with a coefficient of friction of 0.3. The force is applied to the right, above the horizontal at 60 degrees.The object is pulled to the right along the surface for a distance of 5m. What work was done to the block by the applied force?
A battery with an emf of 12.0 V shows a terminal voltage of 11.4V when operating in a circuit with two lightbulbs, What is the battery's internal resistance
Space invaders land on earth. On the invaders' temperature scale, the ice point is at 25°I (I = invader), and the steam point is at 153°I.
A23.0-mW laser beam of diameter1.85mm is reflected at normal incidence by a perfectly reflecting mirror. Calculate the radiation pressure on the mirror
A spherical bowling ball with mass m = 3.3 kg and radius R = 0.11 m is thrown down the lane with an initial speed of v = 8.9 m/s. What is the magnitude of the final velocity
Two point charges are placed on the x-axis. A charge -q is located at the origin, and a charge -2q is located at x = +d. at what location is the total electric potential zero
The light energy that falls on a square meter of ground over the course of a typical sunny day is about 20 MJ. The average rate of electric energy consumption in one house is 1.0 kW. Find the energy consumption and area required by the solar cell
Ideally, when a thermometer is used to measure the temperature of an object, the temperature of the object itself should not change. What was the temperature of the water before the insertion of the thermometer
find the x and y components of the shell.
Suppose you throw a 0.054-kg ball with a speed of 11.6 m/s and at an angle of 28.5° above the horizontal from a building 12.7 m high. What will be its kinetic energy when it hits the ground
Two small objects are hung, from a point, on strings 50 cm long. they each have mass .06 grams and are given equal charge, What is the magnitude of the charge on each object
The ground state energy of an electron in an infinite square well is 3.24 x 10-3eV. What is the width of the square well
Nathan walks due east a certain distance and then walks due south twice that distance. He finds himself 15 km from his starting position
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