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a 1kg block is released from point a and slides down and across the frictionless surface making contact with a relaxed
for the capacitor network shown in the following figure the potential difference across ab is 240 v let c1 25 nf c2
mountain climbers carry bottled oxygen when at very high altitudesa assume that a mountain climber uses oxygen and does
a girl pushes a merry go round until it is rotating with angular velocity of 1 rpm the merry-go-round is a uniformly
a 6 kg bolwing ball rolls without slipping up a hill with height h 5 m the ball has a speed v 12 ms at the top of the
use the exact values you enter to make later calculations a group of students performed the same conservation of
a negatively charged particle enters a region between two parallel plates each plate top and bottom are oppositely
determine the resultant of the coplanar concurrent force system shown compute the magnitude sense and angle of
fresh water is impounded behind a dam to a height h of 18 ft as a showna determine the maximum pressure behind the damb
a 200-kg block is pushed against a 400 nm spring compressing it 220 cm when the block is released it moves along a
an apparatus similar to the one used in the oscillation part of this experiment is used to find the speed of a wave on
a child is on a swing gently swinging back and forth with a maximum angle of 30 degree a friend gives her a small push
on planet x an object weighs 863 n on planet b where the magnitude of the free-fall acceleration is 18 q where g 98
water is poured into a container that has a leak the mass in of the water is given as a function of time t by 111t
1 a describe what is meant by an equipotential surface be specific and indicate any aspects or characteristics
a 10gram marble rolls in a circular track with negligible friction at a given moment its velocity is 1ms what
a uniform charge of q is placed on the sphere of a van de graaff generator such that electron discharge is observed
determine the energy work needed to very slowly separate an electron and a proton from an original separation distance
1 at t 0 a 740g mass at rest on the end of a horizontal spring k 115nm is struck by a hammer which gives it an
1 a 50 kg hiker starts at an elevation of 2500 meters and climbs to the tope of a 3500 meter mountain in 4 hoursa what
1 it you were to take an older style camera flash non-led apart you would find a capacitor with a capacitance of around
1 how many people can be lifted one story with a megajouleand power a small engine can do as much work as a large
1 what is the force of gravity on a 1 kg mass 2 what energy is needed to lift a 1 kg mass a distance of 3 meters 3 what
1 a calorie is the amount of heat energy needed to raise the temperature of 1 gram of water 1 degree celsius heat is
a gallon of gasoline provides 13 x 108 ten to the eighth power joules1 if all of this energy could be converted to