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A baseball has a mass of about 155 g. What is the magnitude of the momentum of a baseball thrown at a speed of 98 miles per hour? (Note that you need to convert mass to kilograms and speed to meters/second. A mile is 1.6 kilometers or 1600 meters.)
Two hockey players strike a puck of mass 0.169 kg with their sticks simultaneously, Find the instantaneous acceleration of the puck
The origin of the coordinate system and with a label at their heads. Two of these vectors are given in terms of the unit-vectors I and j as
A block of wood with volume V floats in water with 0.70V submerged. In oil the block floats with 0.85V of its volume submerged. calculate the density of the wood and oil
At a large business, employees must report to work at 7:30 A.M. The arrival times of employees is approximately symmetric and mound-shaped with mean 7:22 A.M. and standard deviation 4 minutes.
Sam, whose mass is 75\;kg, takesoff across level snow on his jet-powered skis. What is Sam's top speed
A pulsar is a rapidly rotating neutron star that continuously emits a beam of radio waves in a searchlight manner. Determine the average angular speed (in rad/s) of this pulsar
A potter's wheel is rotating around a vertical axis through its center at a frequency of 1.8rev/s. What is the frequency of the wheel after the clay sticks to it
In this section assume the temperature is 20unless directed otherwise. A submarine 47 deep emits a sonar (sound) wave. How deep is the ocean at that point
an 78-kg jogger is heading due east at a speed of 2.8 ms. a 56-kg jogger is heading 42 deg north of east at a speed of
How much force is required to hold a 7.20 cm diameter hose delivering 470 L/min by a 0.73rm cm diameter nozzle.
A bicyclist is finishing his repair of a flat tire when a friend rides by with a constant speed of 3.27 m/s. What is his speed when he catches up
A 10m long conductor is formed into a circle in the xy-plane. Find the magnetic flux through the looped conductor
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