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a model airplane flies ina horizantal circle at the end of a50 meter long control wire with a speed of 40 ms the plane
a raindrop falls at a constant speed how much work is done byair resistance as the drop falls 250 m the raindrops mass
an atwood machine consists of two masses that are connected bya taut string that passes over a perfect pulley initially
a ceiling fan is turned on and a net torque of 19 nmiddotm is applied to the blades the bladeshave a total moment of
you are watering your lawn with a hose when you put your fingerover the hose opening to increase the distance the water
a point charge m1 g at the end of an insulating string of length 55 cm is observed to be in equilibrium in a uniform
lurking alligators an alligator waits for prey byfloating with only the top of its head exposed so that the preycannot
in the figure two particles each with mass m 079 kgare fastened to each other and to a rotation axis at oby two thin
a meter stick is held vertically with one end on the floor and is then allowed to fall find the speed of the other end
a 330 kg wheel essentially a thin hoop with radius 100 m is rotating at 295 revmin it must be brought to a stop in 110
a 175 kg block at rest on a ramp of height h when the block isreleased it slides without friction to the bottom of the
lets us a simple model of a wii fit balance board with two forcemeters one at the left edge and one at the right edge
a charged particle moves through a velocity selector at a constantspeed in a straight line the electric field of the
a student claims that if lightning strikes a metal flagpole the force exerted by the earths magnetic field on the
on a brisk walk a person burns about 380 calh at this ratehow many hours of brisk walking would it takes to lose a
in an is ometric exercise a person places a hand on a scale and pushes vertically downward keeping the forearm
compute the linear momentum and angular momentum of a frisbee of mass 0159 kg if it has a linear speed of185 ms and an
in an experiment designed to measure the speed of light a laser is aimed at a mirror that is 540 km due north a
a helicopter starting at rest accelerates straight upfrom the roof of a hospital the lifting forces does work inraising
a 640-mh inductor and a 840-muf capacitor are connected inseries with a generator whose frequency is 308 hz the rms
a regulated 0-50v power supply with 09ohm internal resistance is used to deliver electric power to a 01ohm heating
if a wave is 3 m high has a wavelength of 100 m and aperiod of 8 s estimate the power available from each meter of
the plates of a spherical capacitor have radii 340 mm and 500 mma calculate the capacitanceb what must be the plate
a parallel-plate capacitor has plates with an area of 379cm2 and an air-filled gap between the plates that is265mm
a bullet of mass m30 g or 03 kg is fired into a wooden block of mass m50 kg the block is attached to a string of length