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consider two bobs of equal mass but different size both tied tothe same length of string the first is a sphere the
a two capacitors of 26muf and 444 muf are connected in parallel and charged with a150 v power supply find the total
a mechanic turns a wrench using a force of 25 n at a distance of 16cm from the rotation axis the force is perpendicular
nichrome wire of cross-sectional radius 0791 mm is to be used inwinding a heating coil if the coil must carry a current
a 1105 kg automobile is pulled by horizontal tow line with a net force of 816 n what is the acceleration of the auto
a chick farmer decides to increase the size of her flock from500 chickens to 2000 chickens she must relieve her
you are working as a consultant on a video game designing abomb site for a world war i airplane in this game he
a 200-g block of copper at a temperature of 90 degreescelsius is dropped into 400 g of water at 27 degrees celsius the
a galvanonmeter has an internal resistance of 100 omega and deflects full-scale at 200 ma what size resistor should be
a fan turns at a rate of 900 rpm ie revmina find the angular speed of any point on one of the fan bladesb find the
a sled which has amass of m125kg is sitting on an icyhorizontal surface a rope attached to the front end of the
a vacuum cleaner is plugged into a 1200-v socket and uses 44 a ofcurrent in normal operation when the back emf
a pulley of 50cm radius on a motor is turning at 30 revsand slows down uniformly to 20 revs in 20s calculatea the
two resistors r1100 ohms and r2 200 ohms are connected inparallel across a battery the current through r1 is 0150
a 3000-kg spacecraft is in a circularorbit 1200 km above the surfaceof mars how much work must the spacecraft engines
a wheel of 40cm radius rotates on a stationary axle it isuniformly speeded up from rest to a speed of 900 rpm in a time
a 53 db sound wave strikesan eardrum whose area is 47 multiplied by 10-5 m2a how much energy is absorbed by the eardrum
if a 200 g ball is dropped from 100 meters what is its velocity just before it hits the ground what is its velocity
a 200 g ball is thrown upwards with an initial kinetic energy of 10 joules what maximum height will the ball reach
a ball of clay falls to the ground from a hieght of 15m itsis in contact with the ground f 020 sec before coming torest
a parallel-plate capacitor is made from two aluminum-foil sheets each 30 cm wideand 500 m long between the sheets is a
a student stands on a bathroom scale in an elevator atrest on the 64th floor of a building the scale reads 836 na as
gasoline flows through a 1 inch diameter hose at an average speedof 5 ftsa what is the rate of flow in cubic feet per
a halfback on an apparent breakaway for a touchdown is tackled frombehind if the halfback has a mass of 91kg and was
a cylinder with a piston contains 0250 mol of oxygen at 240 h105 pa and 355 k the oxygen may be treated as anideal gas