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A rock is thrown horizontally from a bridge by a velocity of 13.0 m/s. it takes the rock 3.5 s to strike the water below. What is the magnitude of the velocity of the rock just before it hits the water?
A copper rod has a length of 1.4 m and a cross-sectional area of 4.2 10-4 m2. What is the mass of ice per second that melts
Multiple-Concept Example 11 reviews the concepts that are important in this problem. What is the radius of a hydrogen-filled balloon that would carry a load of 4390 N
on a part-time job you are asked to bring a cylindrical iron rod of density 7800kgm3 length 89.7cm and diameter 2.35cm
A 10-kg cylinder rolls without slipping on a rough surface. At an instant when its center of gravity has a speed of 10 m/s, determine (a) the translational kinetic energy of its center of gravity,
determine a set of non-orthogonal base vectors a j k b i k and c i j.a establish their reciprocal vectors and
A toy car X of mass .200 kg moves along a frictionless surface with a velocity of .180 m/s. It collides with another toy car Y, with the mass .250 kg and a speed of .130 in the same direction.
A 200g hockey puck is launched up a metal ramp that is inclined at a 30° angle. What speed does the puck have when it slides back down to its starting point
A bomb at rest at the origin of an xy-coordinate system explodes into three pieces. Just after the explosion, one piece, of mass 2.0 kg, what is the magnitude of the velocity of the third piece
If a charge of ?2.20 ?C is placed at this point, what are the magnitude and direction of the force on it
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. Find the speed of the wagon after the rock is thrown
a soccer ball is kicked from the ground with an initial speed of 19.6 ms at an upward angle of 33.4deg. a player 60 m
We found the centripetal acceleration of the Earth as it revolves around the Sun. Compute the centripetal acceleration of a point on the surface of the Earth
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