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A car is hauling 91 kilogram trailer, to which it is connected by a spring. The spring constant is 2400 N/m. The car accelerates with an acceleration of 0.27 m/s2. Determine by how much does the spring stretch?
m
A thin copper plate of mass m has a shape of a square with a side b and thickness d. The plate is suspended on a vertical spring with a force constant k in a uniform horizontal magnetic field B parallel to the plane of the plate. Find the period of t..
A horizontal force does 50 J of work on a box, while the kinetic friction force, between the box and the floor, What is the change in the box's kinetic energy
Suppose a capacitor in a video camera has a capacitance of 26.0 ?F, how much potential energy is stored in the capacitor
A high performance solar panel is 24" by 54". Its maximum power output is 100W when placed under full sunlight. What is the efficiency of this panel
In a region where there is a vertical magnetic field of 1.92 10-2 T, a ring of radius 1.09 cm is flipped in the air as one would flip a coin, Find the maximum instantaneous emf induced in the ring
As Tony the fisherman reels in a "big one", he turns the spool on his fishing reel at the rate of 3.5 complete revolutions every second. If the radius of the reel is 3.5cm , what is the linear speed of the fishing line as it is reeled in
A 5.17-g bullet is moving horizontally with a velocity of +340 m/s, where the sign + indicates that it is moving to the right, What is the velocity of the second block after the bullet imbeds itself
As an electron in a cold hydrogen atom "flips" to align its magnetic moment with the B-field that surrounds its proton, Calculate the frequency and energy of this photon
a model rocket is launched straight upward with an initial speed of 70.0 ms. it accelerates with a constant upward
A diver shines a flashlight upward from beneath the water at a 43.7 %u2218 angle to the vertical. At what angle does the light leave the water
A hot air balloon rises from the ground with a velocity of(2.2 m/s)yhat. A champagne bottle is opened to celebrate takeoff, expelling thecork horizontally with a velocity of (5.6 m/s)xhat relativeto the balloon. When opened, the bottleis 5.0 m abo..
An electron is in a certain energy state in a one-dimensional, infinite potential well from x = 0 to x = L = 200pm. What is the frequency of the photon that is emitted
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