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a 47-ohm-resistor can dissipate up to 025 watt of power without burning up find the smallest number of such resistors
a batter strikes a baseball moving horizontally towards him at 15 ms this ball leaves the bat horizontally at 24 ms 40o
a sled with mass 800 kilogram moves in a straight line on a frictionless horizontal surface at one point in its path
two masses m1 10 kilogram and m2 8 kilogram are accelerated by a force of 60 newton at an angle of 53o above the
in a non-conducting region voltmeter measurements show that the potential has a spherical symmetry with voltage varying
a girl is skipping rocks across a lake one of the rocks accidentally ricochets off a toy boat initially at rest in the
a diver runs horizontally off the end of a diving board with an initial speed of 185ms if the diving board is 300 meter
crossed magnetic and electric fields are established over a certain region the magnetic field is 90 t vertically
a 16 kilogram softball is pitched to you at 36 ms you hit the ball back along the similar path and at the same speed if
a ball m10 g is launched straight upward by a spring the spring was initially compressed 25 centimeter by a force of
a 460 kilogram ball moving to the right positive direction at a velocity of 160 ms on a frictionless table collides
a cannon launches a projectile at a speed of 753 ms at an angle of 600o above the horizontal evaluate how high does it
an 845 kilogram race car can drive around an unbanked turn at a maximum speed of 62 ms without slipping the turn has a
a light beam containing violet and red wavelengths is incident on a slab of quartz at an angle of incidence of 666
a projectile is launched with a velocity of 20ms at 60o with the grounda find vy and vxb if the angle is changed to 30o
at an accident scene on a level road investigators measure a cars skid mark to be 70 meter long it was a rainy day and
a 22 gram rifle bullet traveling 410 ms buries itself in a 48 kilogram pendulum hanging on a 26 meter long string which
a cyclist starts from rest and rides in a straight line increasing speed so that her wheels have a constant angular
determine the cost of operating a lamp for 24 hours that draws 17a from a 110 volt line if the cost of electrical
the current supplied by a battery slowly decreases as the battery runs down assume that the current as a function of
you have made the finals of the physics olympics as one of your tasks you are given 10 gram of aluminum and asked to
two closely spaced circular disks form a parallel plate capacitor transferring 15 x 109 electrons from one disk to the
if two such bolts strike simultaneously at a distance of13 meter from each other find what is the magnetic force per
a powerful bolt of lightning can carry a current of 225 ka a treating a lightning bolt as a long thin wire find the
starting from rest a 12 centimeter diameter compact disk takes 26 second to reach its operating angular velocity of