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The diving board shown in the figure below has a mass of 28 kg and its center of mass is at the board's geometrical center.
Determine the forces that support posts 1 and 2 (separated by 1.4 m) exert on the board when a 60-kg person stands on the end of the board 2.8 m from support post 2. Use positive values for the upward forces and negative values for the downward forces.
Consider a wet roadway banked, where there is a coefficient of static friction of .30 between the tires and the roadway. what is the maximum speed the automobile can have
a 20-kg package is at rest on an incline when a force p is applied to it. determine the magnitude of p if 10 s is
An air-filled parallel plate capacitor with a plate spacing of 1.70 cm has a capacitance of 4.70 ?F. Calculate the dielectric constant of the inserted material
Two charges are placed between the plates of a parallel plate capacitor. One charge is +q1 and the other is q2 = +3.84C. What is the distance r between the two charges
a show that the function yxt x2 v2t2 is a solution to the wave equation by calculating the following quantities and
Two capacitors with C1 = 4 µF and C2 = 6 µF are connected in series across a 660V supply line. Find the charge on each capacitor and the voltage across each
mary is in a train traveling at 30ms. fred is standing next to the train tracks.the train passes fred at 30ms. 2m after
A proton moves from a location where V =69 V to a spot whereV = -51 V. What is the change in the proton's kinetic energy?
Ice (initially at 0oC) is added to 0.75L of tea at 10oC to make the coldest possible iced tea. how much liquid is in the pitcher when this condition occurs
Magnetic resonance imaging (MRI) is a medical technique for producing pictures of the interior of the body. Find the smallest time period during which the field can be allowed to vanish if the magnitude of the average induced emf is to be kept less ..
The rocket moves for 3.00 s along its initial line of motion with an acceleration of 32.0 m/s2. At this time, its engines fail and the rocket proceeds to move as a projectile. Find out the maximum altitude reached by the rocket.
Two wires shown below carry currents of 1 amp out of the page and 9 amps into the page. The two wires are separated by 4 meters. Where is the magnetic field zero due to these two wires?
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