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The whole momentum of a closed system is observed to be 306 kg•m/s east. The system consists of 11 objects that are observed to be colliding with each other. After 34.7 minute and 2950 collisions, Estimate what is the total momentum of the system?
kg*m/s
Suppose you are climbing up stairs, gaining 10 meters of height per minute. In order to do that, your body has to do some work, using energy, at a given rate. What is the power produced by your body? Ignore energy losses.
What equation is used to get the energy density between plates if we are given the electric field (V/m), area of capacitor (m^2) and separation of plates (mm)
Compute the centripetal acceleration of a point on Earth's equator given earth's 24 H rotation period. Compare your answer with g=9.80 m/s
a sailboat is sailing due east at 5.00 mph. the wind appears to blow from the southwest at 14.2 mpha. what is the true
In the figure to the left, the pulley (which is in the form of a disk) has a mass of 7.50 kg and a radius of 35 cm. What is the speed of the iron block
You throw a 20-N rock vertically into the air from ground level. You observe that when it is a height 14.5m above the ground, Use the work-energy theorem to find its maximum height
A merry-go-round (carousel) with a moment of inertia of 594 kg·m2, is initially rotating horizontally at 2 rad/s about a frictionless axis through its center.
a 2 kg block travels around a 0.5m radius circle with an angular speed of 12 rad/s. what is the resulting torque
A student drops two metallic objects into a 32 g steel container holding 169 g of water at 29C. One object is a 486 g cube of copper that is initially at 58C, and the other is a chunk of aluminum that is initially at 6.9C. To the student’s surpris..
Adjacent antinodes of a standing wave on a string are 15.0 cm apart. Find the maximum and minimum transverse speeds of a point at an antinode
When a ceiling fan rotating with an angular speed of 1.70 rad/s is turned off, a frictional torque of 0.263 N·m slows it to a stop in 5.15 s. What is the moment of inertia of the fan?
the rst measurements of the properties of highpressure gases e.g. carbon dioxide were made by amagat in france in the
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