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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?
Calculate the net work done on Gas
A shell is fired wit ha horizontal velocity in the poxitive x direction from the top of an 80m hight cliff. Determine the initial speed of the shell
When a 5.5 cm long pencil is arranged perpendicular to a convex mirror's optical axis at a distance of 29 cm from the mirror, its image is 2.8 cm tall.
A projectile is fired at 60.0 o above the horizontal. Its initial speed is equal to 150.0 m/s. Like most problems in this class (2010), ignore the effects of air unless told otherwise
The area of the opening can be calculated from pi (3.1416) times the radius squared. If your pupil is open to a radius of 3.5 mm, explain how much light energy passes through in one minute? Give your answer in mJ.
A skateboarder shoots off a ramp with a velocity of 5.7 m/s, directed at an angle of 53° above the horizontal. how far is this point horizontally from the end of the ramp
Two children ride on a merry-go-round. One is 2 m from the axis of rotation and the other is 4 m from it. Which child has the larger linear speed and acceleration
The wing of an airplane has an average cross-sectional area of 13 m2 and experiences a lift force of 84,000 N. What is the average difference in the air pressure
The Lyman series results from transitions of the electron in hydrogen in which the electron ends at the n=1 energy level. calculate the wavelengths of the photons emitted in the transitions from the energy states
A car is approaching a relecting wall. A stationary observer behind the car hears a sound of frequency 745Hz from the horn, What is the frequency of the car horn
A milliammeter reads 15mA full scale. It consists of a 0.20 Ohm resistor in parallel with a 36 Ohm galvanometer
You and a friend are bicycling from Sprindale to Bentonville. You maintain a constant speed for the entire distance trip. Your friend, Who gets to Bentonville first
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