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suppose you want to run some apparatus that is 85 from an electric outlet each of the wires connecting your apparatus
a 90-v battery is connected to a bulb whose resistance is 27omegahow many electrons leave the battery per
a skier of mass 70kg is pulled up a slope by a motor driven cable the work required to pul him 60m up a 30 degrees
a 556-kg ice skater is moving at 400 ms when she grabs the loose end of a rope the opposite end of which is tied to a
a projectile is fired straight upward from the earths surface at the south pole with an initial speed equal to one
after the sun exhausts its nuclear fuel its ultimate fate may be to collapse to a white dwarf state in this state it
a 626-kg satellite is in a circular orbit about earth at a height above earth equal to earths mean radiusa find the
the diameters of the main rotor and tail rotor of a single-engine helicopter are 755 m and 104 m respectively the
a uniform drawbridge must be held at a 37 angle above the horizontal to allow ships to pass underneath the drawbridge
a solid cube of iron density 787 gcm3 has a mass of 880 ga what is the resistance between opposite faces of the cube
a railroad car of mass252multiplied by104kg is moving with a speed of395ms it collides and couples with three other
in a certain series rlc circuit being driven at a frequency of 600 hz the maximum voltage across the inductor is 250
electrons flow through a 22 mm diameter aluminum wire at 22 x 10-4 ms electron density of aluminum is 6 x 1028 m-3a how
a tennis player receives a shot with the ball 00600 kg traveling horizontally at600ms and returns the shot with the
a ball of circumference 727 cm and mass 605 g is forced to the bottom of a swimming pool and then released after
a series rlc circuit is driven by an alternating source at a frequency of 410 hz and an emf amplitude of 900 v the
an airplane with a speed of 891 ms is climbing upward at an angle of 484 deg with respect to the horizontal when the
a 200g 40cm diameter solid cylindrical turntable rotates on frictionless bearings at 60rpm a 20g block sits at the
a ceiling fan consists of a small cylindrical disk with 5 thin rods coming from the center the disk has mass md 34 kg
a disk with mass m 88 kg and radius r 038 m begins at rest and accelerates uniformly for t 172 s to a final angular
the desperate contestants on a tv survival show are very hungry the only food they can see is some fruit hanging on a
a small blob of putty of mass m 900 g falls from the ceiling and lands on the outer rim of a turntable of radius r
the magnetic field of a cylindrical magnet that has a pole-face diameter of 33 cm can be varied sinusoidally between
a fighter jet is launched from the aircraft carrier with the aid of its own engines and a steam powered catapult the
a high intensity desk lamp is rated at 45w but requires only 12v it contains a transformer that converts 120v household