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A plane is pointed in the positive x direction andis flying with an speed of (200, 0, 0) m/s relativeto the air. However, due to an exceptionally strong updraft, theair is moving in the positive z direction at 50.0 m/swith respect to the ground. Find the velocity of the plane withrespect to the ground.
An athlete swims the length L of a pool in a time t1 and makes the return trip to the starting poisition in a time t2. (a) If she is swimming initially in the positive x-direction, determine her average velocities symbolically in (a) the first hal..
there is an electric field 519nc in the positive y direction and a magnetic field of 0.319 mt directed out of the
A 1.3-kg 16-cm-diameter solid sphere is rotating about its diameter at 69 rev/min. what is the new angular speed of the ball
A skier of mass 70kg starts on top of a frictionless hill of height 10m. Once the skier reaches the bottom the snow is mixed with sand and no longer frictionless. how far will the skier travel before he stops
In a science fiction story, a microscopic black hole is given anenormous positive charge by firing an un-neutralized ion driveexhaust (consisting of positively charged xenon ions) into it forsix months.
a survey meter has been accurately calibrated in mrhr. the measured value is then used directly by a technologist in
Find the minimum diameter of an l = 18.9 m long brass wire that will stretch no more than 9.38 mm when a mass of 312 kg is hung on the lower end
one mole of a monatomic ideal gas is in a fixed volume container and is in thermodynamic equilibrium with its
a projectile is fired with a speed of v 60 ms at angle of 60 degrees. a second projectile is then fired with the same
A system consisting of two positive particles is altered by an outside force so that its potential energy increases by 5.4 ?J. What is the work done by the outside force
If the radius of the equipotential surface of a point charge is 21.0m and is at a potential of +3.50kv
A bucket of mass 1.70kg is whirled in a vertical circle of radius 1.55m . At the lowest point of its motion the tension in the rope supporting the bucket is 21.0N. Find the speed of the bucket
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