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A force given by F =8.00Ni+4.00Nj acts on an objectas it moves though a displacement d =2.00mj. What is the work done by this force in J?
Suppose we have an isotropic substance, for which the coefficient of linear expansion, α(alpha), is the same in all directions. Show the volume expansivity β(beta)=3α.
A generator delivers an AC voltage of the form ?v = (64 V) sin (75?t) to a capacitor. The maximum current in the circuit is 1.50 A. Find the rms voltage of the generator
a 12-kg block on a horizontal frictionless surface is attached to a light spring force constant 0.80 knm. the block is
A crane lifts a 10,000 kg pile driver to a height of 10 metersevery cycle and then releases it to a free fall and drive a pileinto the river bed. the time to raise the pile driver averages 30seconds. What is the potential energy after the pile driv..
A Nichrome wire is used as a heating element in a toaster. From the moment the toaster is first turned on to the moment the wire reaches it maximum temperature, What is the temperature change in the wire
q1. on the wheel of fortune game show a solid wheel of radius 6.7 m and mass 10 kg is given an initial counter
A guitar string is tuned to an E4, The concert pitch standard A440 has a frequency of 440 Hz. What is the wavelength of this pitch in air
What volume of space contains an energy equal. A car in stop-and-go traffic starts at rest, moves forward 12m in 8 seconds, then comes to rest again. The velocity-versus-time plot for this car is given.
A skier of mass 80 kg starts from rest and slides down a frictionless slope of length 35 m that is inclined at an angle of 30 degrees with the horizontal. Calculate the work done by gravity on the skier, and the work done by the normal force on the..
Draw the free-body diagram of the system and find the value of the force F acting on the piston C.
A person hums into the top of a well and finds that standing waves are established at frequencies of 44.0, 132.0, and 220.0 Hz. The frequency of 44.0 Hz is not necessarily the fundamental frequency. The speed of sound is 343 m/s. How deep is the well..
The asteroid 243 Ida has a mass of about 4.0×1016 kg and an average radius of about 16 km, How long would it take for your rock to return and hit you in the back of the head
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