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a 20 kilogram wood block is launched up a wooden ramp that is inclined at a 30 degree angle the blocks initial speed is
an electron have a kinetic energy of 180 x 10-17 joule it moves on a circular path that is perpendicular to a uniform
a piece of wood is 0600 m long 0250 m wide and 0080 m thick its density is 600 kgm3 what volume of iron rhoi 78 x 103
an engine is being used to raise an 89 kilogram crate vertically upward if the output power of the engine is 1620 w
a conical pendulum consists of a 06 kilogram mass attached to a 75 centimeter string that is at an angle of 37o with
water rhow 1000 kgm3 flows during a horizontal cylindrical pipe of radius 00200 m the pipe bends upwards and climbs
a 10 kilogram lead ball is dropped from a height of 30 m and it hits the floor at a speed of 20 ms suppose the ball is
a soccer ball is released from rest at the top of a grassy incline after 63 sec the ball travels 51m one sec later the
two converging lenses each having a focal length equal to 10 cm are 15 cm apart discover the final image location for
a force of 768 newton stretches a certain spring a distance of 0214 metera find the potential energy of the spring when
a 70 kilogram guy can walk up the 2109 steps to the top floor 440 meter high of the sears tower in 20 minute compute
a spring is first stretched 20 cm from its unstressed length it is then stretched an extra 18 cm how does the work
a 60 kilogram ball is tied to the end of a 50 centimeter long string and swung in a vertical circle the center of the
the focal length of a magnifying glass is 45 cm1 to magnify an object do you place it at 30 cm or at 50from the glass2
a van at the indianapolis 500 mile race accelerates uniformly from the pit area going from rest to 350 kmh in a
the vector a has a magnitude of 5mph and points along the x-axis vector b has a magnitude of 8mph and makes an angle of
a 500 gram model rocket is resting horizontally at the top edge of a 40 meter high wall when it is accidentally bumped
two piers c and d are placed on a river 1610 meter apart two people must make round trips from pier c to pier d and
a bicyclist finds that when he is moving at 10 ms along a south bound bicycle trail that a small piece of paper carried
the antenna on a cordless phone radiates microwaves at a frequency of 70 ghz what is the maximum length of the antenna
a 7 meter long wire is strung less or more horizontally in an east-west direction and a current of13 amp is sent from
assuming your skin temperature is 372degc and the temperature of your surroundings is 207degc decide the length of time
compton used photons of wavelength 00711 nanometera find the energy of these photonsb find the wavelength of the
a constant 370 amp current moves along a straight wire that is perpendicular to a 220 t magnetic field if the wire is
two identical objects are placed in a room at 27degc object 1 has a temperature of 83degc and object 2 has a