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A sprinter with a mass of 80kg accelerates from 0 m/s to 9 m/s in 3 sec.
a) What is the runners acceleration?
b) What is the net force of the runner?
c) How far does the sprinter go during 3 s?
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.
A bowling ball of mass M and Radius R (treated as a solid sphere) is thrown along a level surface so that initially (t = 0) it slides with a linear speed Vo but dows not rotate, How long does it take to begin rolling without slipping
The electric field between the plates of a paper-separated (K=3.75) capacitor is 8.19×104. determine the area of each plate
A 0.54 cm high object is placed 8.7 cm in front of a diverging lens whose focal length is -7.5 cm. What is the height of the image
A man is pulling a 40.0 kg crate across a level floor with a horizontal force, and the coefficient of kinetic friction is ?k = 0.59 for the crate and the floor. What is the normal force acting on the box
A device used in radiation therapy for cancer contains 6.20×10-1 g of cobalt 2760Co (59.9333819 u). Determine the activity of the radioactive material
In one minute of rotation, through how various revolutions did fan turn?
A square wire loop (size L x L) carries current I. Find the magnetic field at the center of the loop
A 34.4-kg crate rests on a horizontal floor, and a 71.8-kg person is standing on the crate. Determine the magnitude of the normal force that the floor exerts on the crate
Consider the decay: 24 Cr 55 -> 25 Mn55 + e, The Cr 55 nucleus has a mass of 54.9279 u, find the maximum kinetic energy of the emitted electrons
A singly charged ion of unknown mass moves in a circle of radius 14.5 cm in a magnetic field of 7.4 T, What is the mass of the ion
Calculate the moment of inertia and the rotational kinetic energy for the following objects spinning about a central axis
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