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a child slides down a snow covered slope that makes an angle of 20 degrees with the horizontal if the coefficient of
gasoline flows through a horizontal pipeline with a flow rateof 25 ft3min a pressure gauge measures thepressure to be
a coil with an inductance of 23 h and a resistance of 10 is suddenly connected to an ideal batterywith script e 130
assume that a certain concave spherical mirror has a focal length of 100cm locate the image and find the magnification
a light beam traveling through air enters a slab with n 250 at a 45ordm angle with respect to the normal then exits the
the combination of an applied force and a constant frictional forceproduces a constant total torque of 356nmiddotm on a
a runner of mass m 37 kg and running at 28 ms runs asshown and jumps on the rim of a playground merry-go-round which
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