10 Points A Force of F(x) = x2 – cos(3x) +2, where x is in meters, acts on an object with a mass of 2.5 kg. What is the work required to move the object from x = 3 to x = 7? How much Power is produced during this event that takes 2.75 seconds to complete?
Read Details15 Points A ball is mass 4 m is dropped from rest from a height of 10 meters above the ground. It undergoes a perfectly elastic collision with the ground and rebounds. At the instant the ball rebounds, a small piece of clay is released from rest from the original height h, directly above the ball, as shown on the right diagram. The clay, which is descending, eventually collides with the ball, which is ascending. Determine the speed of the ball immediately before it hits the ground Determine the height above the ground at which the collision takes place. Determine the speed of the ball and the clay immediately before the collision. If the ball and the clay stick together on impact, what is the magnitude and direction of their velocity immediately after the collision?
Read Details15 Points A roller coaster starts from rest at A, rolls down the track to B, travels along a vertical loop of 12 meter diameter, and travels down past point E. Knowing that h = 20 m. (***Use the listed value for the diameter and not 20 feet for the radius***) Assuming no Energy is lost to friction, determine the force exerted by the seat on a 50 kg rider at B, D, and E. What is the minimum value of the radius of curvature at E if the roller coaster is not to leave the track at that point?
Read DetailsA bone marrow specimen is received in the cytogenetics lab. FISH analysis has been ordered. The MLS performs the assay and notices that 96% of the patient’s cells contain both 5q– and 7q– deletions. These cytogenetic findings are characteristic of:
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