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A particle of mass m=5.00 kg is at rest at t=0.00 s. A varying force F(t)=6.00t2-4.00t+3.00 is acting on the particle between t=0 s and t=5 s. Determine the speed v of the particle at t=5 seconds.
A farsighted woman breaks her current eyeglasses and is using an old pair whose refractive power is 1.658 diopters. Since these eyeglasses do not completely correct her vision, she must hold a newspaper 41.3 cm from her eyes in order to read it.
A system consists of three particles, each of mass 5.85 g, located at the corners of an equilateral triangle with sides of length 18.0 cm. What is the potential energy of the system?
A boat crosses a river of width 96.3m in which the current has a uniform speed of 1.82 m/s. The pilot maintains a bearing (i.e., the direction in which the boat points) perpendicular to the river and a throttle setting to give a constant speed of 1.8..
On a frictionless air track, a 0.140 kg glider moving at 1.35 m/s to the right collides with and sticks to a stationary 0.245 kg glider. What must be the net momentum of this system after the collision
A disk of radius R = 11 cm is pulled along a frictionless surface with a force of F = 16 N by a string wrapped around the edge. what is the torque exerted about the center of the disk
a polymer molcule is 3.05μ m long. the ends of themoleculebecome singly ionized-negative on end end, determine the effective spring constant of the molecule
A molecule of lithium fluoride (LiF) permanent dipole moment. The molecule is placed in a uniform electric field of strength 10^4 N/C, What is the electric dipole moment of the LiF molecule
A Carnot engine operates between 245°C and 135°C, absorbing 6.30 104 Jper cycle at the higher temperature. How much work per cycle is this engine capable of performing
A simple pendulum is made of a small blob of mass m = 9.500 kg attached to the end of an inextensible wire. find the magnitude of the tension in the wire
An object, which is initially at rest on a frictionless horizontal surface, is acted upon by four constant forces. How much total work is done on the object in 4.44 seconds
A man pushes a 13 kilogram shopping cart at a constant velocity for a distance of 24.0 meter. She pushes in a direction 27 degree below the horizontal. Evaluate what the work done by gravity
In a certain binary-star system, each star has the same mass which is 9.6 times of that of the Sun, and they revolve about their center of mass. What is their period of revolution in years
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