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A bicycle and rider have a combined mass of 70.0 kg and are moving at 6.00 m/s. A 70.0 kg person is now given a ride on the bicycle (total mass 140.0 kg). How did the addition of the new rider change the kinetic energy at the same speed?
An electron is moving at a speed of 1.0 x10^4 m/s in a circular path of radius of 2.1cm inside a solenoid. The magnetic field of the solenoid is perpendicular to the plane of the electron's path. The solenoid has 25 turns per centimeter.
the motion of a very massive object is hardly affected by what would seem to be a substantial force. consider a
A motorcyclist heads due north at 20.0 m/s. At a fork in the road, she veers right, ending up with speed 16.0 m/s directed 30° east of north. Find the change-in-velocity vector in component form
A cave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. The lift is performed in three stages, each requiring a vertical distance of 14.0 m
The current through a lamp connected across 120 V is 0.48 A. What is the resistance when the lamp is on
If the modulus of rigidity of the shaft material G is 90 GPa, calculate the maximum shear stress and the angle of twist in degrees
A 71.0 kilogram boulder is located on a 2.00 meter long board, at a point that is 1.40 meter from one end. obtain what force (magnitude only) does will apply to the board
Determine how fast the airplane should be going when it passes the 1000-foot runway marker (1000 feet from the start of the takeoff roll)?[kts].
One liter (1000 cm ^3) of oil is spilled onto a smooth lake it the oil spreads out uniformly unit it makes an oil slick just one molecule thick with adjacent molecules just touching estimate the diameter of the oil slick
a puck of mass m 1.00 kg slides in a circle of radius r 23.0 cm on a frictionless table while attached to a hanging
At time t=0, a 2150-kg rocket in outer space fires an engine that exerts an increasing force on it in the +x-direction. By how much does the rockets velocity change during this interval.
An electron with 184eV of kinetic energy in free space passes over a finite potential well 72eV deep that stretches from x=0 to \(x = 0.5\) nm. What is the electron's wavelength in free space
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