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the maximum speed of a 32-kg mass attached to a springis 065 ms and the maximum force exerted on the mass is11 na what
a 10 g bullet movinng horizontally with a speed of 18 kms strikes and passes through a 5kg block initially at rest on a
a thin glass n 147converging lens for which the radii of curvatureare r1 150 cmand r2 -13 cm to the left of the lens
20 kg of ice melts into liquid water at 0 c what is the change of entropy of the ice
a cannon is placed on the ground and angled 3687 above thehorizon to shoot a balloon wich is 500 meters away the
a tiny motor mounted on a toy car operates across two d-cells inseries if it draws 005 a how much power does it drain
the acceleration of a particle is defined by the relation a -kradicv where k is a constant the particle starts at time
a lead ball is dropped into a lake from a diving board550 m above the water it hits the waterwith a certain velocity
a uniform electric field of magnitude 410nc pointing in the positive x-direction acts on anelectron which is initially
two pianos each sound the same note simultaneously but they areboth out of tune on a day when the speed of sound is 342
two point charges 300 microc and -610 microc are separated by150 m what is the electric potential midway between
two loudspeakers face each other vibrate in phase and produceidentical 441-hz tones a listener walks from one speaker
a sledge loaded with bricks has a total mass of 176 kg and is pulled at constant speed by a ropeinclined at 209deg
a car travels at 40 kmh for 30 min and 60 kmh for 15min how far does it travel in this
a uniform cylindrical can rolls up a slope at an initial linearvelocity of 15ms assuming muk 0106 and theta110o how
a soccer player kicks a ball horizontally off a 400 m cliff into a pool of water if the player hears the sound of the
a diving bell in the shape of a cylinder with a height of280 m is closed at the upper end andopen at the lower end the
when catching a baseball a catchers glove moves by 9 cm along the line of motion of the ball if thebaseball exerts a
a cessna aircraft has a lift-off speed of 120 kmha what minimum constant acceleration does theaircraft require if the
a rocket is fired vertically and ascends with a constantvertical acceleration of 20 ms2 for 10 min its fuelis then all
a parallel-plate capacitor with area 0500m2 and plate separation of 400mm is connected to a 300 v batterya what is the
a key falls from a bridge that is 52 mabove the water it falls directly into a model boat moving withconstant velocity
a total of eight tiny conducting spheres each carrying a charge of-105 nc are placed one each at thecorners of a cube
a 220-nc charge in ane-field is moved by an applied force if 550 nj of work are done on the charge by theforce what is
a charge q is located at the origin while anidentical charge is located on the x axis at x 0690 m a third charge of 2 q