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a 50-microc charge experiences a 046-n force in the positive y direction if this charge is replaced with a
a 75 g spherical ball rolls without slipping down a ramp that makes an angle of 20 degrees with the horizontala find
two wires are identical except that one is gold resistivity 244times10-8 middotm and the other is nichrome resistivity
an oscillator with a natural frequency of 480 hz is driven by a 540 hz sinusoidal signal at what frequency does it
a circuit consists of a 120-v battery connected to three resistors 41ohms 19ohms and 110ohms in seriespart afind the
a 20 n force is applied to the plunger of a hypodermic needle the diameter of the plunger is 12 cm and that of the
what is the shortest and non-trivial channel impulse response that has zero amplitude response at both zero frequency
two identical pucks are on an air table puck a has an initial velocity of 40 ms in the positive x-direction puck b is
an apparatus that liquefies helium is in a room maintained at 306 k if the helium in the apparatus is at 40 k what is
a 78 g ice cube at -18degc is placed in a lake whose temperature is 12degc calculate the change in entropy of the
a 76-kg man is at rest on ice skates a 024-kg ball is thrown to him the ball is moving horizontally at 26 ms just
opening champagne in a bottle of champagne the pocket of gas primarily carbon dioxide between the liquid and the cork
a room with a pine ceiling measured 10 m x 6 m x 2 cm thick on a cold day the temperature on inside of the ceiling is
an ideal monatomic gas initially has a temperature of t and a pressure of p it is to expand from volume v1 to volume v2
an object of mass 50 kg is projected into the air at a 55deg angle it hits the ground 39 s later what is its change in
a spherical virus has a diameter of 50 nm it is contained in a long narrow cell of length 1 x 10-4 m what uncertainty
true or false1 sound is considered an electromagnetic wave2 the electric field in an electromagnetic wave is parallel
a parallel-plate capacitor has an area of 437 cm2 and the plates are separated by 107 mm with air between them it
an electron that has an energy of approximately 62 ev moves between rigid walls 14 nm aparta find the quantum number n
find the resistance of the following power ratings are based on the assumption of a potential difference of 120 v rms
the terminal voltage of a certain battery is measured with the battery disconnected and is found to be 636 v the
investigate ohmrsquos law for reverse currents in resistors turn off the power supply and reverse the connections on
a car manufacturer claims that you can drive their new vehicle across a hill with a 47 slope before the vehicle starts
a vw bug hits a huge truck head on each vehicle was initially going 50 mpha which vehicle experience the greater forceb