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A hand grenade of total mass 5 kilogram explodes into two pieces. One, of 4 kilogram flies off at 10 meter per second. Determine how fast does the other one move?
a charge of 3.0 mc and a second charge are initially far apart. if it takes 29j of work tobring them to a final
a baseball just clears a 3.20-m wall that is 113 m from home plate. if the ball leaves the bat at 35.0deg and 1.20 m
A particle is located at r=(4.1i+3.1j+5.6k)m . A force F=(9.5j-3.5k)N acts on it. What is the torque, calculated about the origin
A discus thrower (with arm length of 1.2 m) starts from rest and begins to rotate counterclockwise with an angular acceleration of 1.8 rad/s2. (a) How long does it take the discus thrower's speed to get to 3.5 rad/s?
A pot containing 1.06 liter of water, initially at 22°C, is placed on a 1091 W electric heating element. How much heat is necessary to boil all the water away
two 2.0-cm-diameter insulating spheres have a 5.50cm space between them. one sphere is charged to 94.0nc the other to
For the two conducting balls as described in problem 1, when one ball is attached to a torsion balance the wire is twisted by a torsional angle of 1°. find the torsion constant of the wire
Water is being sprayed from a nozzle at the end of a garden hose of diameter 2.0 cm. what is the speed of the water inside the hose
Two cars travel in the same direction along a straight highway, one at a constant speed of 55 mi/h and the other at 70 mi/h. How far must the faster car travel before it has a 15-min lead on the slower car
For a certain block on a spring, the block's displacementx = X sin() and its velocity v = X cos(), with X = 0.57 m. If the block has a mass of 0.19kg and the spring constant is 55 N/m, calculate the total energywhen = 44°.
A cylindrical fishing reel has a moment of inertia of I =6.30E-4 kg*m2 and a radius of 3.86 cm. What is theforce of the fish on the line
How much heat (in kcal) is necessary to change 68 g of ice at -33°C into water at 34°C? How many electrons were removed
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