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a river is 200m wide the water in the river flows at a speed of 25 m s a motorboat drives across the river at its
two pieces of clay are moving directly toward each other when they collide they stick together and move as one piece
a 1490 kg mid-size car traveling east at 152 ms collides with a 2400 kg mid-size truck traveling north at 267 ms
a 0249 kg billiard ball that is moving at 342 ms strikes the bumper of a pool table and bounces straight back with a
a system consists of three blocks with masses from left to right of 367 kg 106 kg and 769 kg the leftmost block has a
a cannonball of mass 221 kg is shot into the air at an angle of 45 degrees with respect to horizontal at the top of its
water from a fire hose is directed horizontally against a wall at a rate of 115 kgs and a speed of 117 ms calculate the
an ion rocket engine obtains thrust by firing out charged atoms ions at very high speeds if 118 grams of propellant are
a bullet of mass 100 gram moving at a velocity of 397 ms toward the right strikes an orange of mass 900 gram the bullet
an object starts from rest and slides down a frictionless ramp from a height of 10 m what is the speed of the object at
a 1400 kg mid-size car traveling east at 207 ms collides with a 2120 kg mid-size truck traveling north at 374 ms assume
suppose an orbiting satellite has a mass of 56 metric tons and is orbiting at 648 km above the surface of the earth
a bullet of mass 25 g is fired horizontally into a wood block of mass 12 kg that is suspended from the ceiling by
a firework of mass 025 kg is launched at an angle of 75 degrees above the horizontal pointing due west the initial
consider a particle which can only move along the x-axis a conservative force acts on the particle along the x-axis and
a boat is crossing a river with a speednbspvbnbsp 83 ms relative to the water the river is flowing at a speednbspvrnbsp
consider a helium atom that has two protons in the nucleus with one electron orbiting the nucleus at 529 x 10-11nbspm
1 look up the wattage of one of your lightbulbs in your home what is the resistance of that light bulb if it was
question 1 match the parent nuclei with the daughter nucleithese are the parent nucleinbsp1234 91 protactinium plus 0
a 300-kg object has an initial velocity 600i - 200 j ms a what is its kinetic energy at this time b find the total work
a projectile is launched straight up at 141 ms how fast is it moving at the top of its trajectory how fast is it moving
what is the acceleration of a car that travels in a straight line at a constant speed of
a 200-g block is pressed against a spring of force constant 140 knm until the block compresses the spring 100 cm the
a 150-kg block is dragged over a rough horizontal surface by a 700-n force acting at 200deg above the horizontal the
a fill in the blanks in the following paragraph to identify the properties of mirrors and lenseslenses produce images