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a certain lightbulb is rated at 1750 w when operating at an rms voltage of 120 va what is the peak voltage applied
two identical 150 kg masses are pressed against opposite ends of a light spring of force constant 175 ncm compressing
a rod of 20-m length and a square 20 mm times 20 mm cross section is made of a material with a resistivity of 60 times
a steam turbine is limited to a maximum inlet temp of 800 c the exhaust pressure is 0100 mpa and the moisture in the
an ideal gas at 269degc and a pressure 160 105 pa is in a container having a volume of 100 la determine the number of
a solar concentrating heat exchanger system directs sunlight onto a longstraight pipe the pipe recieves 153616 btuh per
a small plastic sphere with a charge of -50 nc is near another small plastic sphere with a charge of -15 ncif the
an archers bow is drawn at its midpoint until the tension in the string is 0835 times the force exerted by the archer
four identical charges 20 c each are brought from infinity and fixed to a straight line the charges are located 040 m
a 6000kg truck stands on the deck of an 80000kf ferryboat initially the ferry is at rest and the truck is located at
a small hole of a 26 cm diameter has developed in the hull of a ship 40 m below the waterline at what rate is water
the electric field between the plates of the velocity selector in a bainbridge mass spectrometer is 127times105 and
two thin lenses with a focal length of magnitude 750 cm the first diverging and the second converging are located 563
consider a person on the moon who launches herself into a satnding broad jump at 45 degrees the average force generated
you and a friend are sitting in the bleachers of a major league baseball park 120 m from home plate on a day when the
a helicopter starting from rest accelerates straight up from the roof of a hospital the lifting force does work in
a roller coaster 482 kg moves from a 363 m above the ground to b 286 m above the ground two non-conservative forces are
a two air-track gliders of equal mass are initially moving in the same direction along a straight line the rearmost
a a rocket with initial mass of 750times103 kg is fired in the vertical direction its exhaust gases are ejected at the
an escort and a camaro traveling at right angles collide and stick together the escort has a mass of 1200 kg and a
a transformer with 340 turns in its primary coil and 30 turns in its secondary coil is designed to deliver an average
a circuit contains a 150-o resistor a 00570-h inductor a 0420-microf capacitor and a source of time-varying emf
electromagnetic waves of wavelength 0178 fall on a crystal surface as the angle of incidence is gradually increased
light of wavelength 631 passes through a diffraction grating having 485 what is the angle of the bright spot farthest
consider a rectangular loop of wire 63 cm by 82 cm in a uniform magnetic field of magnitude 17 t the loop is rotated