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A soccer ball with mass 0.400 kilogram is traveling with a speed of 4.30 m/s at an angle of 20 degree counter clockwise from the +x axis. Compute the ball x and y components of momentum?
q1. two point charges q1 -10.0 nc and q2 20.0 nc are 15 cm apart on the x-axis. what is an electric potential at the
A wheel rolls 5 revolutions on a horizontal surface withoutslipping. If the center of the wheel moves 3.2 m, what is the radius of the wheel
Three identical stars of mass M = 1.9 x1030 kg form an equilateral triangle that rotates aroundthe triangle's center as the stars move in a common circle aboutthat center. The triangle has edge length L = 7.1 x1010 m. What is the speed of the star..
a spring with a spring constant of 270 nm iscompressed by 14cm.a 880g ball is attached to the end and the spring is
A certain cablecar in San fransisco can stop in 10 sec upon the application of the brakes while traveling at full speed Upon seeing a dog ahead of the car the driver instantly applies the full brakes, How far was the cable car from the dog when the..
A 57.0kg cheerleader uses an oil-filled hydraulic lift to hold four 130kg football players at a height of 1.40m, what is the diameter of the football players' piston
A young male adult takes in about 5.0 10-4 m3 of fresh air during a normal breath. Fresh air contains approximately 21% oxygen. find the number of oxygen molecules in a normal breath
Type A nerve fibers in humans can conduct nerve impulses at speeds up to 140m/s, How fast are the nerve impulses in miles per hour
suppose a duck lives in a universe in which h 2 pij middot s. the duck has a mass of 1.55 kg and is initially known to
two sound waves oscillate in phase with a frequency of 100 hz to a point 5.00 m from a source and to 5.85 m from the
1 two equally charged spheres of mass 0.001kg are placed 0.02m apart. what is the eletrictric repulsive force that they
A molecule of DNA (deoxyribonucleic acid) is 2.35 µm long. The ends of the molecule become singly ionized: negative on one end, positive on the other. Determine the effective spring constant of the molecule
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