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A carnival merry-go-round rotates about a vertical axis at a constant rate. A man standing on the edge has a constant speed of 3.26 m/s and a centripetal acceleration of magnitude 2.26 m/s2. Position vector locates him relative to the rotation axis.
(a) What is the magnitude of r vector?
What is the direction of when is( a vector) directed
(b) due east and
(c) due south?
A 800kg , light-weight helicopter ascends from the ground with an acceleration of 3.50m/s2. What is the work done by the gravitational force
In each of the four scenarios, a large bat lets out a short burst of ultrasonic sound, which the smaller bat hears a moment later. what return frequency will the large bat detect
It is then projected up the same plane with an initial speed 4.40 m/s. Explain how far up the incline will the block move before coming to rest?
A capacitor that is initially uncharged is connected in series with a resistor and a 406.7V emf source with negligible internal resistance, What is the resistance of the resistor
A wall in a house contains a single window. The window consists of a single pane of glass whose area is 0.19 m2 and whose thickness is 9 mm. what is the percentage lost by the window
Neglect air resistance, as well as any energy absorbed by the pole, and clerify her altitude as she crosses the bar.
A moving body undergoes uniform acceleration while travelling in a straight line between points X, Y and Z. The distances XY and YZ are both 40m. The time to travel from X to Y is 12s and from Y to Z is 6s.
How high from the surface of the earth must an object be raised, What minimum speed is needed by the object to ascend to this height
Water is being pumped through a horizontal pipe that is 28.8 m long and 17.0 cm in diameter. what gauge pressure must the pump provide to give the same volume flow rate as for the first pipe
An arrow is launched vertically upward from a crossbow at 97.9 m/s. Ignoring air friction, what is its instantaneous speed at the end of 10.0 s of flight? What is its average speed up to that moment? How high has it risen? What is its instantaneou..
A baseball has a mass of 0.140 kg, and it is pitched towards home plate at a speed of 54.0 m/s. what is the final speed of the ball
The International Space Station is orbiting at an altitude of about 370 km above the earth's surface. find the period of the International Space Station's orbit
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