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A(n) 7.8-kg object is sliding across the ice at 2.34 m/s in the positive x direction. An internal explosion occurs, splitting the object into two equal chunks and adding 19J of kinetic energy to system. The explosive separation takes place over a 0.16-s time interval. Assume that the one of the chunks after explosion moves in the positive xdirection. The x component of the average acceleration of this chunk during the explosion is a_frontx, the x component fo the average acceleration of the other chunk during the explosion is a_rearx.
A. What are the x components of the average accelerations of the two chunks during the explosion?
A woman weighing 755N stands on a mass less ladder leaning against a frictionless wall. The bottom of the ladder is 4.50m away from the wall, on the floor by static friction coefficient μs= 0.35. The top of the ladder is 9.25m above the floor.
A student throws a baseball at a large gong 76 m away and hears the sound of the gong 1.95758 s later. What was the average speed of the base- ball on its way to the gong
Fish are hung on a spring scale to decide their mass (most fishermen feel no obligation to report the mass truthfully). How far apart are the half-kilogram marks on the scale? What is the mass of a fish that stretches the spring 5.50 cm?
A tennis player hits a 1.45 kg tennis ball with a racket of mass 2.5 kg. what impulse did he imply on the ball
The left ventricle of the heart accelerates blood from rest to a velocity of + 25.9 cm/s, How much time does blood take to reach its final velocity
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a 5kg Potter's wheel (model as a disk) with radius 0.3m is spinning at 5 rad/s. what is the mass of the clas
Two objects are connected by a light string that passes over a frictionless pulley, Find the magnitude of the accelerations of the objects
After having collected samples along the shore all day long, a marine biologist walks back to her campsite, 3.02 km away, What distance did the dog run
The combination of an applied force and a constant frictional forceproduces a constant total torque of 35.6N·m on a wheel rotating about a fixed axis. Find the total number of revolutions of the wheel
Two blocks are connected by an ideal string that passes over a massless, frictionless pulley. determine the magnitude of the blocks acceleration
A nearsighted person cannot see objects clearly beyound 30cm(the far point). what is the power of the lens to correct the patients vision
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