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a 87.40 kg hiker has ascended to a height of 1867 m in the process of climbing mt. washington. by what percent has the hikers weight changed by climbing to this elevation? use g=9.807 m/s^2 and Re=6.371 * 10^6m.
In February 1955, a paratrooper fell 370 m from an airplane without being able to open his chute but happened to land in snow, compute the magnitude of the impulse on him from the snow?
The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space.
A 900 g rubber ball is dropped from a height of 14 m and undergoes a perfectly elastic collision with the earth. What is the earth's velocity after the collision
The 60kg cradle A is carrying the 12 kg pipe B at the speed of 8 m/s when it hits the rigid wall. suppose all the impacts are plastic, determine the speed of the pipe immediately after the impacts. Neglect friction.
A light plane is headed due south with a velocity of 157 km/h relative to still air. After 1.00 hour, the pilot notices that they have covered only 121 km and their direction is not south but southeast (45.0^circ).
An isolated conductor has a net charge of +7.90*10^- 6 C and a cavity with a particle of charge q = +2.30*10^-6 C, find the charge on the cavity wall and outer surface
A particle of mass 2 units moves along the x-axis attracted toward the origin by the force whose magnitude is numerically equal to 8x. find the differential equation describing the motion
A nuclear power plant produces an average of 4.90 × 103 MW of power during a year of operation. Find the corresponding change in mass of reactor fuel
A hoop and a disk, both of 0.72- m radius and 4.0- kg mass, are released from the top of an inclined plane 2.5 m high and 8.9 m long. What is the speed of the hoop
A transverse pulse moves along a stretched cord of length 5.55 m having a mass of 0.130 kg. If the tension in the cord is 13.6 N, find the wave speed
q1. 150 grams of boiling water temperature 100 c heat capacity 4.2 jgramk are poured into an aluminum pan whose mass is
A girl is using a rope to pull a box that has mass of 30kg across a level surface with constant velocity. What is the normal force of the floor on the box
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