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a 548 kg ice skater is moving at 394 ms when she grabs the looseend of a rope the opposite end of which is tied to a
a 250 g bob is constrained at a 53 degree angle by twostrings1 what is the initial tension in the diagonal string2 what
what is the longest wavelength for a standing sound wave in anopenopen tube of length 165m filled with air and the
a soap film is illuminated by white light normal to itssurface the index of refraction of the film is 150 wavelengths
a car moving 65 mph suddenly breaks andstops after traveling for 50 m finda the acceleration of the carb the time it
a 300 kg mud ball has a perfectly inelastic collision with a second mud ball that is initially at rest the composite
radon is a radioactive gas commonly found in the basement of ahouse it has a half- life of 38 daysa what is the decay
a spaceship negotiates a circular turn of radius 2790 km at a speed of 33980 kmha what is the magnitude of the
a physics textbook weighing 22n rest on a table the coefficient ofstatic friction between the book and the table is 060
a string 15m long with a mass of 26g is stretched between two fixed points with a tension of 93n find the frequency of
a vibrating source generates a harmonic wave on a string underconstant tension if the power delivered to the string is
a friend tells you that when she takes off her eyeglasses and holdsthem 19 cm above a printed page theimage of the
a 10e-4 f capacitor is charged to a potential of 500 v it is connected to a 50 h inductance at time t 0 what is the
in a certain solar house energy from the sunis stored in barrels filled with water in a particular winterstretch of
the work function for indium is412 eva convert the value of the work function fromelectron volts to joulesjb find the
a solid sphere with mass m and radius r rolls along a level surface without slipping with a linear speed v what is the
the flywheel in a car is a solid cylinder with a mass of85 kg a radius of 12 cm and a length of 50 cm it is
a bubble floats up from the bottom of a lakerho1000kgm3 up to the top its volume when itreaches the top is twice as
a 150 ampere current flows through a 475 msection of wire perpendicular to a 0250 t magnetic fieldwhat is the magnitude
a 1800 kg car traveling to the right at28 ms is chasing a second car of the samemass that is traveling to the right at
the fundamental frequencies from a guitar string and a 440-hz tuning forkinitially give 3 beats per second however when
assume that the earth is a uniform sphere and that its path around the sun is circulara calculate the kinetic energy
an object is thrown downwardwith an initial speed of 15 ms from a height of 83 mabove the ground at the same instanta
an ac adapter for a telephone-answering unit uses a transformer toreduce the line voltage of 120 v rms to a voltage of
the speed of sound inhydrogen is 1330 ms at 20degc 68degf 293 k a moleof hydrogen has a mass of 2016 g find the