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exciting news a planet has been discovered orbiting the star closest to us on earthnbsp under careful observation the
1 two charges 10c and 20c are 30cm parta what is the electric force felt by the first chargeb what is the electric
an 870 kg block slides with an inital speed of 156 ms down the ramp at an angle of 284 with the horizontal the
a certain type of laser emits light that has a frequency of 74x 1014 hz the light however occurs as a series ofshort
1 in a series circuit how do the currents flowing through individual resistors compare2 in a series circuit how does
a 60 omega rtesistor and a 40 omega are connected inparallel to a 120 v power supplya what is the current through each
two diverging light rays originating from the same point havean angle of 810deg between them after the rays reflect
a 140 kg block slides with a speed of 0950 ms on a frictionless horizontal surface until it encounters a spring with a
a rubber ball of mass 265 g is dropped from a height of 190 m onto a floor the velocity of the ball is reversed by the
a person of mass 520 kg stands at rest how much will the average force exerted on the feet by the floordiffer from the
a flat unbanked curve on a highway has a radius of240 rm m a car rounds the curve at aspeed of 200 rm mrm swhat is the
a 29kg block slides with a speed of 16ms on a frictionlesshorizontal surface until it encounters a spring a if the
a satellite is in an elliptical orbit at altitudes rangingfrom 230 to 890 km at the high point its moving at 723 kms
suppose that when you ride on your 810-kgbike the weight of you and the bike is supported equally by the twotires if
a point source of light is submerged 23 m below the surface of a lake and emits raysin all directions on the surface of
a device has been designed to measure the flow rate of carbon dioxide evolved from a fermentation reactor the reactor
1 a 3-kg mass has an acceleration of 40i - 30j ms2 only two forces act on the mass if one of the forces is 20i - 14jn
a 522 kg pole-vaulter fallsfrom rest from a height of 48 m onto a foam-rubber pad thepole-vaulter comes to rest 036 s
a hot water bottle contains 960 g of water at 59 degree c if the water cools to body temp 37 degree c how many
an horizontal force of 30 n is being applied to a 5 kg block causing it to accelerate up a frictionless surface which
an electron with kinetic energy 36 kev moves horizontally into aregion of space in which there is a downward-directed
a golfer strikes a ball from the origin with an initial speed of 30 ms and at an angle 33 degrees from the horizontal
a charged belt 60 cm widetravels at 40 ms between asource of charge and a sphere the belt carries charge into thesphere
how many time constants must elapse for an initially uncharged capacitor in an rc series circuit to be charged to 98
friction provides the force needed for a car to travel arounda flat circular racetrack what is the maximum speed at