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a baseball outfielder throws a 0150 kilogram baseball at a speed of 380 ms and an initial angle of 270 degree find the
a pot of water is located in a garage to keep the garage from getting to cold when the weather forecast calls for
think the bohr energy expression equation 3013 as it applies to singly ionized helium he z 2 and an ionized atom with
a farsighted man uses eyeglasses by a refractive power of 380 diopters wearing the glasses 0025m from his eyes he is
an auto of mass 1500 kilogram is coasting at 16 ms at the top of a hill later at the bottom of the hill the auto is
the headlights on a certain car are gauged to be 19 m apart the diameter of the pupil in a human eye is 25 mm what is
a jet plane 500 kilometer above the ground is traveling horizontally at 100ms when it drops a rocket the rocket
a closed system consists of 4 objects initially object a has a charge of -200 c object b has a charge of-4 c object c
an object o is located in front of two thin symmetrical coaxial lenses 1 and 2 with focal lengths f1 24 cm f 2 9 cm
a horizontal platform in the shape of a circular disk rotates on a frictionless bearing about a vertical axle through
a race car is driven at a constant velocity of 200 kmh on a straight level track the power delivered to the wheels is
a 70 kilogram diver steps off a 10 meter tower and drops from rest straight down into the water if he comes to rest 50
starting from rest a 94 kilogram firefighter slides down a fire pole the average frictional force exerted on him by the
a 103 gram granite cube slides down a 40 degree frictionless ramp at the bottom just as it exits onto a horizontal
if a toaster is plugged into a source of alternating voltage with an rms value of 134 v an rms current of 575 amp
two parallel sheets of aluminum foil separated by 01 millimeter are connected to a 9 volt battery the area of each
a 120 volt battery remains connected to a parallel plate capacitor with a plate area of 0184 m2 and a plate separation
the damage caused by electric shock depends on the current flowing through the body 1 ma can be felt and 5 ma is
a 1000 kilogram boat travels across a lake when its engine is shut off magnitude of friction between water and boat is
a computer hard drive disk with a diameter of 35 inches rotates at 7200 rpm the read head is positioned exactly halfway
a 330 kilogram birdfeeder hangs from the tip of a 160 meter pole that sticks up from the ground at a 650 degree angle
a thermos contains 150 cm3nbspof coffee at 850c to cool the coffee you drop two 11 gram ice cubes into the thermos the
a train moving with a constant speed of 75 kmhr moves east for 45 minutes then in a direction 20o east of north for 60
a 510 kilogram swimmer with an initial speed of 128 ms decides to coast until she comes to rest if she slows with
a 020 kilogram ball is thrown straight up into the air with an initial speed of 18 ms compute the momentum of the ball