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The earth spins about it's own axis at an angular velocity omega. Imagine an experiment where an object of mass 'm' kg is weighted at the North pole and then at the equator. What is the ratio of the two weights? Assume that the earth is a perfect sphere with radius 'R' and that the spin axis is the geographical North-South axis.
An airplane flies at 400 mph at 1600 ft altitude on a standard day. The plane climbs to 50,000 ft and flies at 725 mph. Calculate the Mach number of flight in both cases.
B) Determine the minimum amount of work [kJ ] required to reach this end state. C) If more than the minimum work is actually used, where does this extra energy go? That is what becomes of the extra energy?
Calculate spring stiffness for which the oscillator becomes unstable (gravity in the negative y direction) verify with SW Simulation (study 1)
a machine part of mass 1.95 kg vibrates in a viscous medium. determine the damping coefficient when a harmonic exciting
Knowing that the coefficient of restitution is 0.8 between B and C, and 0.5 between A and B, Determine the velocity of each car after all collisions have taken place.
the hull of a boat has a volume of 150 m3 and the total mass of the boat when empty is 8560 kg. determine how much load
a stone is dropped into a lake causing circular waves whos radii increase at a contant rate of .5 m/s at what rate is the circumference of a wave changing when its radius is 4 meters?
A mixture of dry air and water vapor is at a temperature of 21C under a pressure of 101.3 kPa.The dew point temperature is 15C.(Ps= saturation pressure at 15C=1.7044 kPa;Pd=saturation pressure at 21C=2.4861 kPa) find humidity ratio and relative hu..
The car travels up the hill with a speed of v = (0.4s) m/s, where s is in meters, measured from A. Determine the magnitude of its acceleration when it is at point s = 50 m, where p = 500 m.
a car moves along an x axis through a distance of 990 m starting at rest at x 0 and ending at rest at x 990 m.
determine the magitudes of the horizontal and vertical reactions of the chair on the man at the instant . At this instant he has a speed of 6 m/s, which is increasing at 0.5 m/s^2.
hot engine oil enters a 1-in schedule 40 steel pipe at 80?c with a velocity of 5 ms.nbspthe pipe is submerged
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