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A wire has a diameter of 0.200mm and stretches 20% when a force of 6.28 Newtons is applied to it. What is the elastic (Young's) modulus of this wire?
A 0.280 kg croquet ball makes an elastic head-on collision with asecond ball initially at rest. The second ball moves off with halfthe original speed of the first ball. What is the mass of thesecond ball
assume that the area of contact between an automobile tire and the road is a rectangle with dimensions 17.5 cm cross
an other frame moves with a speed of 0.6 relative to the home frame. an object at rest in the home frame has a length
A series circuit has a 50 Hz ac source, a 20 ohm resistor, a 0.6 H inductor, and a 40 ?F capacitor, the voltage amplitude of the source is closest to
A wrecking yard inventor wants to pick up cars by charging a 0.400 m diameter ball and inducing an equal and opposite charge on the car. What is the electric field near the surface of the ball
A 250. MW coal-fired power plant burns fuel with an energy density of 35.0 MJ kg-1. Water enters the temp reduction towerat 293 K and leaves at 350. K at a rate of 4200. kgs-1.
Starting from rest, a 5.5-kg block slides 3.00 m down a rough 30.0° incline, Determine the work done by the friction force between block and incline
In one frame of reference(say H), two events occur at the same point in space, but are separated by a time interval of 100 nanoseconds
Inversely proportional to the square of the fields
In a dentist's office an X-ray of a tooth is taken using X-rays that have a frequency of 6.08 × 1018 Hz. What is the wavelength in vacuum of these X-rays
Two boxes are connected by a cord running over a pulley as shown in Fig. 4-7. Box I of mass 8.0 kg rest on the top of the table; Calculate the acceleration of the system
A sample of ethyl alcohol (C2H5OH) has a density of 806 kg/m3 and a volume of 1.73 x 10-3 m3. find the number of molecules in the sample
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