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In February 1955, a paratrooper fell 1200 ft from an airplanewithout being able to open his chute but happened to land in snow,suffering only minor injuries. Assume that his speed at impact was56 m/s (terminal speed0, that his mass (including gear) was 85 kg,and that the force on him from the snow was at the survivable limitof 1.2 X 10 ^ 5 N. What is the minimum depth of snow that wouldhave stopped him safely?
q1. a 55 year old woman who is complaining of intermittent flushing itching and heartburn for several months. mega
A man sits on the south bank of a 100m wide river that flows due east at 2m/s. The man can swim 3m/s, How long will it take him to cross
An atom is ionized so that it has only one electron. When the electron drops from the n = 3 shell to the n = 1 shell, What is the atomic number
Three deer, A, B, and C, are grazing in a field. Deer B is located 62.8 m from deer A at an angle of 51.7 ° north of west. What is the distance between deer A and C
A mass of 145 g of hot coffee at 90.0 oC is poured into an insulated cup containing 240 g of ice initially at 0.0 oC. How many grams of liquid will there be then
A thin sheet of transparent material has an index of refraction of 1.80 and is 24.0 µm thick. how many fringe shifts occur in the pattern
A 4.4 cm radius ball rolls down an inclined plane from rest at the top. The angular acceleration of the rolling ball about its center is 185 rad/s^2, How long is the plane
A woman holds a tube of lipstick 8 cm from a spherical mirror and notices that the image of the tube is upright and one third its normal size. find what is the position of the image
A bicycle is turned upside down while its owner repairs a flat tire on the rear wheel. A friend spins the front wheel, of radius 0.335 m, and observes that drops of water fly off tangentially in an upward direction when the drops are at the same l..
Two forces, 1 and 2, act on the 5.00 kg block shown in the drawing. What is the horizontal acceleration (magnitude and direction) of the block
What if the acceleration is not constant? A particle starts from the origin with velocity 6i m/s at t = 0 and moves in the xy plane with a varying acceleration given by a = (2?tj) m/s2, find the position of the particle as a function of time
Two cars start at the origin from rest. The first car accelerates for 3.0s and then continues at a constant velocity, find the distance traveled by the first car
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