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the masses of the javelin discus and shot are 080 kg 20kg and 72 kg respectively and record throws in thecorresponding
two charges are separated by a distance d on the x-axis thecharge on the left is q and the one on the right is -3q find
an 800 kg car coasts down a hill 40 m high with engineoff and drivers foot pressing on break pedal at the top ofthe
a pendulum is released from rest extended horizontally the mass ofthe pendulum is 05 kg and the length of the string to
a centrifuge in a medical laboratoryrotates at an angular speed of 3400revmin when switched off it rotates through 520
a person looking out the window of a stationary train noticesthat raindrops are falling vertially down at a speed of
mrst boards plane a and her class boards plane b the two airplanes leave the airport at the same time mrs ts plane is
a 12-lb sledge hammer head falls a distance of 3-m hitting a030-g lead nail initially at a temperature of 22
a fully charged capacitor with a voltage of 270 kv is discharged through a resistora what is the voltage across the
after a completly inelastic collision between 2 objhects ofequal mass each having initial speed v the 2 move off
two springs with spring constants k1 and k2 are put togetherend-to-end let x1 be the amount by whichthe rst spring is
1 a 100g granite cube slides down a frictionless 38 degreeincline at the bottom just after it exits onto a
a car is normally capable of an acceleration of 3ms2 if it is towing a trailer with half as much mass asthe car itself
a 13 g bullet traveling 230 ms penetrates a 20 kg block of wood and emerges going 170 ms if the block is stationary on
a rocket-powered hockey puck has a thrust of 100 n and a total mass of 210 kg it is released from rest on a
a 0430 kg block is attached to a horizontal spring that is at its equilibrium lenght and whose force constant is 200 nm
a 15 g bullet strikes and becomes embedded in a 110 kg block of wood placed on a horizontal surface just in front of
an electronic flash attachment for a camera produces a flash by using the energy stored in a 860-mu f capacitor between
a gun is fired vertically into a 140 kg block of wood at rest directly above it if the bullet has a mass of 210 g and a
a certain mass when hung from a certain spring causes the spring to stretch by an amount h compared to itsequilibrium
a grappling hook attached to a 15-m rope is whirled in acircle that lies in the vertical plane the lowest point on
when 378 g of nonvolatile solute is dissolved in 3000 g ofwater the freezing point depression is 0646 o c calculate the
your task in physics lab is to make a microscope from two lensesone lens has a focal length of 12 rm cm the other a
an object initially at rest breaks into two pieces as the result of an explosion one piece has twice the kinetic energy
the interior of a house is maintained at 20 degrees celsiuswhile the outdoor temperature is -10 degrees celsius