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water flows from a 12 inch diameter pipe with a flow of 1msec how many kg of water flow from the pipe in onesecond in
a container holds 23 mol of gas the total average kinetic energyof the gas molecules in the container is equal to the
a 200g block is released from rest at a height of 25cm on africtionless 30o incline it slides down the inclineand then
two identical trucks have a mass of 5500kg when empty one truck carries a 9500 kg load and is moving at 65kmh it
a satellite is in a circular orbit about the earth at a distance of one earths radius above the surface what is the
a 300 kg ball is dropped from the roof of a building 1764 m highwhile the ball is falling to earth a horizontal wind
a string passing over a pulley has a 380-kg mass hanging fromone end and a 315-kg mass hanging from the other end
a person whose mass is 850 kg is exposedto a whole-body dose of 250 rads how many joules of energy are deposited in the
a barefoot field-goal kicker imparts a speed of 42 meters per second to a football initially at rest if the football
a book weighing 24 newtons is placed on the table what is the net force on the book in this case answer in units of
an airplane propeller is 208 m in length from tip to tip and hasa mass of 117kg the propeller is rotating at 2400
you push a 20 kg box from an elevation of zero up a hill you exerta force of 200 n for 6 m and the box speeds up
a convertible travels down a straight level road at a slow speedof 13 kmh a person in the car throws a ball with a
a hydrogen atom initially in its ground state n 1absorbs a photon and ends up in the state for which n 3a what is the
a girl leaves a physics classroom and walks 10m north to a drinking fountain then she turns and walks 30m south to an
a drop of water on a countertop reflects light from a flower held330 cm directly above it the flowersdiameter is 210 cm
a torque of 012nm is applied to an egg beatera if the eggbeater starts at rest what is its angular momentum after 065sb
a ball rolls down the track starting from rest at a height of h1 20m the ball is traveling horizontally when it leaves
a student sits at rest on a piano stool that can rotate withoutfriction the moment of inertia of the student -stool
a worker uses a wheelbarrow to haul 225 lb of brick the handlesare located 400 ft from the axle the center of the load
a stroboscope is a light that flashes on and off at a constantrate it can be used to illuminate a rotating object and
how much work must be done to accelerate a baton from rest to an angular speed of 74 rads about its center consider the
linearly polarized light is incident on a piece of polarizingmaterial what is the ratio of the transmitted light
after getting anbsp drink of water a hamster jumps onto an exercise wheel for a run afew seconds later the hamster is
yellow light travels 0680 times as fast in a certain type of plastic than in a vacuum what is the index of refraction