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a projectile is fired in such a way that its horizontal range is equal to 5 times its maximum height what is the angle
a soccer player kicks a rock horizontally off a 400 m high cliff into a pool of water if the player hears the sound of
a ball is thrown from the top of a building upward at an angle of 35 to the horizontal and with an initial speed of 15
find the electric energy density between the plates of a 225-muf parallel-plate capacitor the potential difference
if a 100 kg body has an acceleration of 829 ms2 at 79deg to the positive direction of the x axis then what area the x
a swimmer bounces straight up from a diving board and falls feet first into a pool she starts with a velocity of 400 ms
the edge of the thimble of a micrometer moves a distance of 20 mm when it is given four complete revolutionsfind the
when two identical ions are separated by a distance of 83times1010m the electrostatic force each exerts on the other
a hare and a tortoise compete in a race over a straight course 140 km long the tortoise crawls at a speed of 0280 ms
an oil well is 10000 ft deep it is shut-in at the wellhead the reservoir is normally pressured for brine take sg103 for
only two horizontal forces act on a 45 kg body one force is 58 n acting due east and the other is 27 n acting 25deg
a firefighter a distance d from a burning building directs a stream of water from a fire hose at angle i above the
in the measurement of length of a cylinder the main scale reading of a vernier caliper is 15 cm the vernier reading is
a 60-g ice cube at 0degc is heated until 54 g has become water at 100degc and 60 g has become steam at 100degc how much
three boxes each of mass 220 kg are on a frictionless table connected by massless strings a force of tension t1 pulls
an express subway train passes through an underground station it enters at t 0 with an initial velocity of 185 ms and
the field just outside a 243cm radius metal ball is 350 nc and points toward the ball what charge resides on the ball
the person shown below is pushing on a refrigerator that sits on a level floor assume the floor is very slippery so
a kicker punts a football from the very center of the field to the sideline 37 yards downfield a football field is 57
a photographer in a helicopter ascending vertically at a constant rate of 125 ms accidentally drops a camera out the
a uniformly charged ring of radius 102 cm has a charge of 875 microca find the electric field on the axis of the ring
a car speeds up from 50 mph to 65 mph to pass a truck if this requires 7 seconds what is the average acceleration of
a rock is dropped into an abandon mine and a splash is heard 10 s later assuming that it takes negligible time for the
calculate the diffusion coefficient for the diffusion of carbon in gamma-iron at 1x103 degrees celsius express your
you are driving your car and the traffic light ahead turns red you apply the brakes for 256 s and the velocity of the