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A dedicated sports car enthusiast polishes the inside and outsidesurfaces of a hubcap that is a section of a sphere. When he looksinto one side of the hubcap, he sees an image of hisface 26.0 cm in back of thehubcap. He then turns the hubcap over, keeping it the same distancefrom his face. He now sees an image of his face 10.0cm in back of the hubcap.
a) How far is his face from the hubcap?b) What is the radius of curvature of the hubcap?
A man pushes a lawn mower on a level lawn with a force of 186 N. If 35 percent of this force is directed downward, how much work is completed by the man in pushing the mower 6.5 m.
Two 11cm diameter electrodes 0.50cm apart form a parallel-plate capacitor. The electrodes are attached by metal wires to the terminals of a 15V battery. After a long time, the capacitor is disconnected from the battery but is not discharged.
A 13 kg dog is standing on the edge of astationary, frictionless turntable of rotational inertia 95kg·m2 and radius 2.05 m.The dog walks once around the turntable. What fraction of a fullcircle does the dog's motion make with respect to the ground?
Two plastic spheres, each carrying charge uniformly distributed throughout its interior, are initially placed in contact and then released, Find the maximum speed achieved by the sphere of mass 50.0g
A bedroom bureau with a mass of 57 kg, including drawers and clothing, rests on the horizontal floor. What is the static friction force on the bureau initially
The electric field strength is 2.40 x 10^4 N/C inside a parallel-plate capacitor with a 1.40 mm spacing, What is the electron's speed when it reaches the positive plate
Chicago is located at 37.5 degrees north of the equator. What is chicagos linear velocity due to the Earth spinning on its axis
A 10 m beam of mass 340 kg extends over a ledge. The beam is not attached, but simply rests on the surface. How far from the edge of the ledge can the beam extend
A normal electric power cord consists of two parallel conductors about 4 mm apart. Estimate the magnetic field strength (in N/C) about 30 cm from a linear 25 m power cord connected to a 100 W lamp
In a museum exhibit, three equal weights are hung with identical wires. Each wire can support a tension of no more than 72.0N without breaking. Under these conditions, what is the tension in the middle wire
After the collisions the clay-rod system has an angular velocity ω about the pivot. With respect to the pivot point O, elucidate the magnitude of the initial angular momen-tum Li of the clay-rod system?
During a workout, the football players at State U. ran up the stadium stairs in 60 s. The stairs are 150 m long and inclined at an angle of 30°. estimate the average power output on the way up
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