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A bucket filled w/water has a mass of 30kg and is attached to arope that is wound around a cylinder w/radius of 50cm at the top ofa well. What torque does the weight of the water and bucket produce on the cylinder?(g=9.81 m/s2, take care of units1m=100cm)
You have a concave spherical mirror with a 13.3-cm radius of curvature. You place an object on the mirror's axis, 19.7 cm in front of the mirror
A 10-kg crate is placed in the bed of a truck at rest on horizontal ground. The truck accelerates uniformly at 1 m/s^2for 10 seconds. What is the sign of the work done on the crate
Young's modulus for earth can be approximated by 5.5*10^5 MN/m^2 and the corresponding shear modulus by 2.0*10^5 MN/m^2. How far from the station did the earthquake take place
The fundamental frequency of an open organ pipe corresponds to the middle C (261.6 Hz on the chromatic musical scale). The third resonance of a closed organ pipe has the same frequency. (Assume that the speed of sound in air is 343 m/s.) What is the ..
an object is 18cm in front of a adiverging lens that has a focal length of -12cm. how far in front of the lens should the object be placed
A 364 N marine in basic training climbs a 6.4 m vertical ropein 3.21608 s at a constant speed. How much power does he exertduring the climb?
Two spherical objects with a mass of 5.89 kg each are placed at a distance of 2.16 m apart. How many electrons need to leave each object
A stone has a mass of 6.0 x 10-3 kg and is wedged into the tread of an automobile tire, as the drawing shows. The coefficient of static friction between the stone and each side of the tread channel is 0.90.
A steel cable with a total length of 22.6 m and total mass of 68 kg is connected to two poles. Calculate the wavelength of the resulting wave on the cable
q1. wire carries a stable current of 2.60 a. a straight section of the wire is 0.750 m long and lies along the x axis
A .45kg rock is dropped 7.0 m into 4.0 kg of water. If all the rock's kinetic energy is converted to thermal energy in the water, what's the water's temperature increase
A fisherman reels in 15.0 m of line while landing a fish, How much work does the tension in the line do on the fish
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