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a 450-kg girl is standing on a 133-kg plank the plank originally at rest is free to slide on a frozen lake which is a
a particle whose mass is 60 grams and whose charge is 5 nc is released from rest when it is 20 cm from a second
the antarctic circumpolar waves propagates around the antarctic continent during a period of about 8-9 yearsquestion
assume that wind which forced a fluids motion along a north to south path suddenly ceases at latitude 45on and the only
if a pump requires 9 ft h2 o npsh and the liquid you are pumping has a vapor pressure of 45 psi at suction temperature
a whale uses sonar sound waves to supplement its eyesight for deep water dives if the speed of sound in water is
abe and bob are bird-watching hoping to add a particular song bird to their life list of species they agree to split up
jack pushes an 80kg box is through a distance of 22m up a 20o frictionless incline the applied force is parallel to the
a 70 kg man steps out a window and falls from rest 12 m to a sidewalk what is his speed just before his feet strike the
a 5 kgblock is placed near the top of a frictionless ramp which makes an angle of30odegrees to the horizontal a
a basketball player is trying to make a half-court jump shot and releases the ball at the height of the basket assuming
a pitched ball is hit by a batter at a 45degangle and just clears the outfield fence 98 m away if the fence is at the
an arrow is shot at 300 degrees above the horizontal its velocity is 49 ms and it hits the targeta what is the maximum
julie throws a ball to her friend sarah the ball leaves julies hand a distance 15 meters above the ground with an
you accidentally throw your car keys horizontally at 80 ms from a cliff 64 m high how far from the base of the cliff
two forces are applied to a car in an effort to move it as shown in the following figure where f1 413 n and f2 357 n
a small plane can fly at 150 mileshr the pilot heads due north toward his home town on the other side of a rectangular
a satellite circles the earth in an orbit whose radius is 225 times the earths radius the earths mass is 598 x 1024 kg
a train is moving slowly eastward at 4ms a child in the train has sent his robot walking at 12 ms from the left side to
a what is the bulk modulus of a fluid in which 2 kg occupies 10-3 m3 of volume and the speed of sound in the fluid is
a car traveling at 28 ms hits a bridge abutment a passenger in the car who has a mass of 45 kg moves forward a distance
a fuzzy die that has weight of 18 n hangs from the ceiling of a car by a massless string the car travels on a
your friends car runs out of fuel and you volunteer to push it to the nearest gas station you carefully drive your car
a 30 kg boy rides a roller coaster the acceleration of gravity is 98 ms2 with what force does he press against the seat