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The upper leg muscle (quadriceps) exerts a force of 1180 N, which is carried by a tendon over the kneecap (the patella) at the angles shown in Figure 5.43. Find the magnitude and direction of the force exerted by the kneecap on the upper leg bone (the femur). N ° (counter-clockwise from an axis directed to the left)
(a) What is the total distance that the ball moved? (b) At the end, what is the displacement of the ball (from the first player)?
A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1040 Hz, What is the speed of the bird, expressed as a percentage of the speed of sound
The froghopper, Philaenus spumarius, holds the world record for insect jumps. When leaping at an angle of 58.0 above the horizontal, some of the tiny critters have reached a maximum height of 52.7 above the level ground. What was the takeoff speed..
A ball is thrown horizontally from a building. What happen to the horizontal and vertical accelerations? (Ignore the effects of air resistance) Will the ball accelerate in the vertical direction, however not the horizontal direction?
Suppose a sphere, thin hoop, and a disk were all rolling along a horizontal surface with the same speed when they encountered a hill and started rolling up the hill. Which would roll up the hill the farthest
Consider a 619-N weight is being held by two cables. The left hand cable has a tension of T2 and makes an angle of ?2 with the ceiling. What is the tension of the left hand cable
a piston with a radius of 10 cm and a mass of 50 kg presses down on water inside a cylinder. the atmospheric pressure
How many Ne atoms are present in a 2.80 L sample of Ne at STP? (Enter your answer using scientific notation. For scientific notation, 6.02 x 1023 is written)
73 magnetic target is suspended on a string. A .025magnetic dart, shot horizontally, stickes the target head-on. the dart and the target together, acting like apendulum, swing 12 cm above the initial level before instantaneously coming to a rest...
two forces act on a14 kg object. the first force has a magnitude of 70 N and is directed 28 north of east. what is the acceleration of the object resulting from application of these two forces to the object
Determine the location where the sub is to be attached (distance from the load) length of the stub needed to match the load - determine the velocity as propagation of plane wave in this material
Reflect on what you have learned in this course. How can these concepts be applied to real-world situations and increase your changes of career or life success?
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