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Q. An 86kg man drops from rest on a diving board 3.0m above the surface of the water and comes to rest 0.55s after reaching water. What is the net force on the diver as he is brought to rest?
Q. While one person shouts at a football game, the sound loudness at the center of the field is 50 dB. While all the people shout together the loudness enhancements to 110 dB. Suppose that each person is about the similar distance from the center of the field and can generate the similar level of sound intensity. How various people are at the game?
A 430 microF capacitor is charged to 245 V. after that a wire is connected between the plates. How many joules of thermal energy are produced as capacitor discharges if all of the energy that was stored goes into heating the wire.
find out the speed of the test charge. How many electrons should be removed from A and put onto B to make the electrostatic force that acts on each object an attractive force whose magnitude is 23.6 N.
What is mass of the ice cube
Consider a large parallel plate capacitor with circular plates of radius R. suppose that the electric field between the plates is increasing.
An electron is projected with an initial speed 1.00×106 into the uniform field between the parallel plates. Suppose that field between the plates is uniform and fixed vertically downward, and that field outside the plates is zero. The electron enters..
The motion of peg P is constrained through the lemniscate curved slot in OB and by the slotted arm OA.
Three capacitors are arranged. C1 has a capacitance of 5.0 pF, C2 has the capacitance of 10 pF, and C3 has the capacitance of 15 pF. Find the voltage drop across the entire arrangement if the voltage drop across C2 is 311 V.
What is the speed of crate hit ground
A thin rod consists of two parts joined together. One third of it is silver and two-thirds is gold. The temperature decreases by 24C°.
A constant horizontal force Fa pushes a 3.70 kg FedEx package across a frictionless floor on which a xy coordinate system has been drawn. it gives the package's x and y velocity components versus time t. (The vx axis is marked in increments of 1.2..
A car is traveling at a constant speed of 38.8m/s on a highway. At the instant this car passes an entrance ramp, a second car enters the highway from the ramp. The second car starts from rest and has constant acceleration. What acceleration must it..
A movable piston having a mass of 7kg and a cross-sectional area of 6 cm2 traps 0.2 mol of an ideal gas in a vertical cylinder. The piston slides without friction in the cylinder. The outside of the cylinder is kept at atmospheric pressure, 1.013×..
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