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A ball of mass 0.65 kg is fired with velocity 120 m/s into the barrel of a spring gun of mass 2.4 kg initially at rest on a frictionless surface. The ball sticks in the barrel at the point of maximum compression of the spring. No energy is lost to friction. What fraction of the ball's initial kinetic energy is stored in the spring?
A hare and a tortoise compete in a race over a straight course 1.80 km long. The tortoise crawls at a speed of 0.190 m/s toward the finish line. How far is the tortoise from the finish line
The leg and cast weigh 200 N, with the center of mass as indicated by the blue arrow. The counterbalance w1 weighs 110 N. find out the weight w2 and the angle α needed so that no force is exerted on the hip joint by the leg plus cast.
A 50 loop circular coil has a radius of 3.0 cm. It is oriented so that the field lines of a uniform magnetic field of magnitude 0.35 T are normal to the area of the coil. Find the average induced emf in the coil
Calculate the labour price (rate) variances for each worker level. b. Compute the labour efficiency variances for each worker level. c. Compute the labour mix variances for each worker level.
In a college parking lot, the number of ordinary cars is larger than the number of sport utility vehicles by 85.7%. Find the number of SUVs in the lot
A meter stick with a mass of 89.5 g is being supported at the 50 cm mark with a pivot that is 1.00 cm above the center of mass of the meter stick. The moment of inertia of stick about that point is 0.00746 kgm^2. What is the period of oscillation ..
A spool of thin wire (with inner radius r = 0.50 m, outer radius R = 0.65 m, and moment of inertia I_cm = 1.1323 kg*m2) pivots on a shaft.
A 36 g ball is fired horizontally with initial speed v_0 toward a 110 g ball that is hanging motionless from a 1.1 m-long string. The balls undergo a head-on, perfectly elastic collision, after which 110 g ball swings out to a maximum angle theta_..
A long solenoid that has 1,190 turns uniformly distributed over a length of 0.420 m produces a magnetic field of magnitude 1.00 multiply.gif 10-4 T at its center
In a study of proteins mediating cell membrane transport,microbiologists measure current versus time through the cellmembranes of oocytes (nearly mature egg cells) taken from theAfrican clawed frog,
A balloon carrying a basket is descending at a constant velocity of 20.0 m/s. how far is it from the basket
A long, solid insulating cylinder of radius R = 1 mm has a uniform volume charge density and a total linear charge density of Lambda = 3:610^ -9 C/m.
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