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recall from thermodynamics that if an object of mass m absorbs an amount of energy q its temperature will increase
an electron traversing a resistor in an electronic circuit has no more kinetic energy when it exits the resistor than
a what is the escape speed on a spherical asteroid whose radius is 510 km and whose gravitational acceleration at the
a 20 kg satellite has a circular orbit with a period of 23 h and a radius of 65 106 m around a planet of unknown mass
a michelson interferometer is used with a helium-neon laser of wavelength 6288 nm a glass-walled chamber of interior
a 6kg sled is traveling across the ice at a speed of 9ms when a12kg package is dropped into it from above assume the
a 100 gram bead is free to slide a long a piece of 08 m long string abc the ends of the string are attached to a
010 mol of argon gas is admitted to an evacuated 50 cm3 container at 20deg c the gas then undergoes isobaric heating to
a copper block is removed from a 300deg c oven and dropped into 100 liter of water at 20deg c the water quickly reaches
a window washer is standing on a scaffold supported by a vertical rope at each end the scaffold weighs 204 n and is 31
calculate the coulomb potential energy of a sphere with radius r0 uniformly charged throughout its volume with the
a light rigid rod of length l 100 m joins two particles with masses m1 400 kg and m2 300 kg at its ends the
the distance from the center of the breastbone to a mans hand with the arm outstretched and horizontal to the floor is
a skater is initially spinning at a rate of 131 rads with a rotational inertia of 254 kgmiddotm2 when her arms are
a turntable of mass 501 kg has a radius of 0129 m and spins with a frequency of 0530 revs what is its angular momentum
a solid sphere of mass 0524 kg rolls without slipping along a horizontal surface with a translational speed of 533 ms
a spinning flywheel has rotational inertia i 417 kgmiddotm2 its angular velocity decreases from 195 rads to zero in
two rocket ships travel in the same direction with a relative speed of 98c a light pulse is fired from the back of one
a rod is being used as a lever as shown in the figure below the fulcrum is x1 179 m from the load and x2 381 m from
a circular area with a radius of 740 lies in the x-y plane1 what is the magnitude of the magnetic flux through this
a coil of wire with 210 circular turns of radius 330 cm is in a uniform magnetic field along the axis of the coil the
an egg rolls off a kitchen counter and breaks as it hits the floor how large is the impulse that the floor exers on the
a transformer consists of 300 primary windings and 832 secondary windings 1 if the potential difference across the
you need a transformer that will draw 16 w of power from a 220 v rms power line stepping the voltage down to 12 v rms1
a 180 mh inductor is connected in series with a dc battery of negligible internal resistance a 0840 k-ohm resistor and