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An electric eld of magnitude 3.5 kN/C is applied along the x axis. Calculate the electric flux through a rectangular plane 0.35 m wide and 0.7 m long in the following cases.
(a) The plane is parallel to the yz plane.
(b) The plane is parallel to the xy plane.
(c) The plane contains the y axis and its normal makes an angle of 40:0 with the x axis.
A 250MW laser pulse is focused with a lens to a diameter of 2.5?m. What is the laser beam's electric field amplitude at the focal point
A 1.0 kg ball drops vertically onto a floor, hitting with a speed of 28 m/s. It rebounds with an initial speed of 12 m/s. What impulse acts on the ball during the contact
A cardinal (Richmondena cardinalis) of mass 4.30×10-2 and a baseball of mass 0.14 have the equal kinetic energy. What is the ratio of the cardinal's magnitude of momentum to the magnitude of baseball's momentum.
A 1232.0 g mass is on a horizontal surface with ?k = 0.33, and is in contact with a massless spring with a force constant of 652.0 N/m which is compressed. What is the velocity of the mass as it loses contact with the spring
A fishing line has attached to it a hollow plastic float 2.65 cm in diameter and having a mass of 1.50 g. Find the mass of a lead weight
7400 J of input heat to perform a certain amount of work. Engine 2 has an efficiency of 0.33, How much input heat does the second engine require
Certain rifles can fire a bullet with a speed of 950 m/s just as it leaves the muzzle (this speed is called the muzzle velocity). What is the acceleration of the bullet within the rifle
the speed of light in a certain material is measured to be 2.2*10^8 m/s. what is the index of refraction of this material
Gillian buys a pendulum clock at a discount store and discovers when she gets it home that it loses minutes each day.
What is the friction force that acts on the firefighter?
You have been called to testify as an expert witness in a trial involving an automobile accident, determine that the coefficient of kinetic friction between the wheels and the pavement at the time of the accident was 0.59
When she gets off the ride, she uploads the scale readings to a computer and creates a graph of scale reading versus time. Note that graph has a minimum value of 519 rm N and a maximum value of 666 rm N.
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