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a pendulum of length 100 m swings in a vertical plane whenthe pendulum is in the two horizontal positions theta 90
the drawings show three charges that have the same magnitude but different signs in all cases the distance d between
a solid disk of radius r and mass 266 kg is spinning atangular velocity 647 rpm about a vertical axis a solid disk
a wheel rotates about a horizontal axis it has an outerradius r1 212 cm and mass m1451 kg attached to itconcentrically
a bat hits a moving baseball if the bat delivers a neteastward impulse of 13 n-s and the ball starts with an
a dedicated sports car enthusiast polishes the inside and outsidesurfaces of a hubcap that is a section of a sphere
an 870 kg block slides with an initial speed of 166 ms up aramp inclined at an angle of 274 degree with the horizontal
car headlights use concave mirrors theres a concave mirror in the back of the headlight socket and the actual light
a 3 kg block moving at 4 ms makes a head-on elastic collision with a stationary block of mass 2 kg use coservation of
a lightbulb is wired in series with a 184omega resistor and they are connected across a 120 v source the powerdelivered
suppose there are 3 equal resistors how many arrangementsusing all 3 resistors in each could you set up each
you mass 80 kg and your friend mass unknown are in a rowboard mass 60 kg on a calm lake you are at the center of the
a block m 3 kg slides on a frictionless horizontal surfaceit then goes up a 15 degree incline having a coeffecient
jane looking for tarzan is running at topspeed 67 ms and grabs a vine hanging vertically from a talltree in the jungle
design an optimal winter coat to keep you warm use the principle of heat transfer conduction convection and radiation
a long straight conducting rod orwire carries a linear charge densitylambdaof 20mucm this rod is totally enclosed
halleys comet moves about the sunin an elliptical orbit with its closest approach to the sun being059 au and its
two blocks are pressed together compressing a spring the system is then released from rest on a level frictionless
a bicyclist coasts down a 70 degree hill at a steady speed of 50 ms assuming a total mass of 75kg bicycle plus rider
a volleyball is spiked so that its incoming velocity of 40ms is changed to an outgoing velocity of -21 ms the massof
a train is traveling up a 46deg incline at a speed of 327 ms when the last car breaks free and beginsto coast without
which one of the following statements regarding internal energy is falsea the internal energy of a system includes the
a skydiver of mass m jumps from an aircraft at an altitude of hmetres with an initial speed of 0 ms she opens her
to hoist himself into a tree a 720-kg man ties one end of anylon rope around his waist and throws the other end over a
a pendulum is made of a long narrow stainless steel rod and has aperiod of t seconds at -2000 degrees c if the