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A 69 kilogram person throws a 0.0440 kilogram snowball forward with a ground speed of 35.0 m/s. A second person, with a mass of 60 kilogram, catches the snowball. Both people are on skates. The first person is initially moving forward with a speed of 2.40 m/s, and the second person is initially at rest. Obtain what are the velocities of the two people after the snowball is exchanged? Disregard the friction between the skates and the ice.
thrower m/s
catcher m/s
A professional skier reaches a speed of 56m/s on a 30 degrees ski slope. Ignoring friction, what is the minimum distance along the slope the skier would have had to travel, starting from rest?
A 2.0-kg block slides along a rough horizontal surface. A force(P=6.0N) is applied to the block at a 30degree angle. find the magnitude of the force of friction acting on block
A duck is floating on a lake with 27% of its volume beneath the water. What is the average density of the duck
A learner sits on a rotating stool holding two 3.0 kilogram objects. When his arms are extended horizontally, Evaluate what the new angular speed of the learner
the fastest growing plant on record is the hesperoyucca whipplei. suppose a plant of this type grows 1.8 m in 14 days.
At a steel mill a 50 Kg chunk of iron at 22 Celsius is heated to it's melting point , completely melted , How much energy is required to heat the iron to it's melting point
A parachutist bails out and freely falls 61 m. Then the parachute opens, and thereafter she decelerates at 2.3 m/s2. How long is the parachutist in the air
In a certain series RLC circuit being driven at a frequency of 60.0 Hz, By what phase angle does the current lag the generator emf
A circular steel plate of radius 0.10 m is cooled from350oC to 20oC. By what percentage does the plate's area decrease
A 1 mF, a 2 mF, and a 3 mF capacitor are connected in parallel, the combination being connected across a 9 volt battery. Which capacitor has the greatest voltage
A 140-m-wide river flows due east at a uniform speed of 3.9 m/s. A boat with a speed of 7.8 m/s relative to the water leaves the south bank pointed in a direction 39o west of north. How long does it take for the boat to cross the river
A horse can maintain a top speed of 20m/s for a long distance but has a maximum acceleration of only 6.0m/s^2. how far does it run, to the nearest 10m
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