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During the final stages of descent, asky diver with an openparachute approaches the ground with a constant velocity. Thewind does not blowhim from side to side. Is the sky diver inequilibrium and, if so, what forces are seponsible for thee quilibrium?
A hot-air balloon is accelerating upward under the influence of two forces, its weight and the buoyant force. What is the acceleration of the rising balloon
A flywheel with a diameter of 0.510 m is rotating at an angular speed of 178 rev/min. What is the linear speed of a point on the rim of the flywheel
In exercise physiology studies it is sometimes important to determine the location of a person's center of mass. How far from the woman's feet is her center of mass
an airplane flies in a horizontal circle of radius 4000 m at aconstant speed of 100m/s. The mass of the pilot is 63 kg. What is the net force on the pilot when the airplane isdirectly east of the circle's center
A uniform magnetic field points north; its magnitude is 4.5 T. A proton with kinetic energy 7.1 10-13 J is moving vertically downward in this field. What is the magnetic force acting on it
A hydrogen molecule with an initial velocity of 1200m / s makes a collision with a molecule of oxygen at rest. The reason for the masses of molecules is mO / mH = 16. What are the speeds of the molecules after collision.
A 0.800 m long solenoid is formed by wrapping 740 turns of wire around a hollow cylinder with a radius of 0.160 m. calculate the energy stored in the field
A ball rolling down an incline travels 6.0m in the first 0.25 seconds, and 24m in the first 0.50 seconds. What is the average speed for the first time interval
q1. a rectangular conducting loop of wire is approximately half-way into a magnetic ?eld b out of the page and is free
As it enters a pipe, a perfect fluid has spped 3.70 m/s. As it exits the pipe, the speed is 10.6 m/s. what is the radius of the pipe at the exit
For the differential rod worth data given below, a. Construct differential and integral rod worth curves. b. Using the integral rod worth curve (from Part a), find the reactivity inserted by moving the rod from 6 inches withdrawn out to 12 inches ..
During exercise, a person may give off 145kcal of heat in 20min by evaporation of water (at 20?C)from the skin. How much water has been lost
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