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A uniform block of granite in the shape of a book has face dimensions of 23.0 centimeter and 23.6 centimeter and a thickness of 1.97 centimeter. The density (mass per unit volume) of granite is 2.64 g/cm3. The block rotates around an axis that is perpendicular to its face and halfway between its center and a corner. Its angular momentum about that axis is 0.607 kg·m2/s. Determine its rotational kinetic energy about that axis?
A bullet with mass m = 5.21 g is moving horizontally with a speed v = 373 m/s when it strikes a block of hardened steel with mass M = 14.8 kg, What was the change in kinetic energy (J) of the bullet
A force of 39.2 N is exerted on the small piston of diameter 1.25 cm to support a 1600-kg car on the hydraulic lift shown. What gauge pressure produces this force
A large closed bag of plastic contains 0.10 m3 of an unknown gas at an initial temperature of 10°C and at the same pressure as the surrounding atmosphere, 1.0 atm. How many moles of gas are in the bag
A 1.0 kg block of ice is resting at the top of a spherical ball of ice that has a radius of 1.0 meters. At what angle does the block of ice leave the surface of the sphere
a tuning fork vibrates at a frequency of 256 hz. what is the wavelength of the sound coming from the fork when the air
A 0.50-?F and a 1.4-?F capacitor (C1 and C2, respectively) are connected in series to a 14-V battery. Calculate the charge on each capasitor assuming the two capacitors are in parallel
Water flows into a bucket at the rate of 0.0005 m^3 / s. Thebuckets has a hole in the bottom of area 2.5 square cm. How high above the bottom of the bucket will the water rise
The moon revolves aound the Earth in 27.3 days in nearly circular orbit with a radius of 3.8*10^8 m. what is the moon's centripetal acceleration
a solid sphere of radius a is surrounded by a conducting spherical shell of inner radius b and outter radius c.a
A certain steel railroad rail is 13 yd in length and weighs 70.0 lbs/yd. determine how much thermal energy is required to increase the length of such a rail by 3.0 mm
A 1.6 kg ball is at rest on the floor in a 2.4 m ? 2.4 m ? 2.4 m room of air at STP. Air is 80% nitrogen (N2) and 20% oxygen (O2) by volume. What is the thermal energy of the air in the room
A cannon tilted up at a 30° angle fires a cannon ball at 65 m/s from atop a 12 m high fortress wall. What is the ball's impact speed on the ground below
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