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The minute hand of a wall clock measures 17 cm from its tip to the axis about which it rotates. The magnitude and angle of the displacement vector of the tip are to be determined for three time intervals. What are the (a) magnitude and(b) angle from a quarter after the hour to halfpast, the (c) magnitude and (d)angle for the next half hour, and the (e)magnitude and (f) angle for the hour after that?Give all angles as positive values measured counterclockwise fromthe +x direction (to the right, or 3 o'clock).
Suppose we have a solid with a constant volume consisting of N particles. find the number of microstates
Water flowing through a garden hose of diameter 2.73 cm fills a 21.0-L bucket in 1.60 min. find the speed of the water leaving the end of the hose
A lab centrifuge with radius 11cm turns at 77 rev/s. What should be its angular acceleration for a point at the 11cm radius to have tangential acceleration that is 1% of its centripetal acceleration?
You combine two thin lenses by placing them in contact so that their axes coincide, forming what is called a compound lens. The focal lengths of the lenses are 24.1 cm and –53.9 cm, respectively. Find the focal length of this compound lens?__________..
What would be the equilibrium temperature when a 270 g block of copper at 300°C is placed in a 150 g aluminum calorimeter cup containing 820 g of water at 12.0°C.
A storage tank has a diameter of 80 ft, a height of 25 feet, andcontains oil to a height of 15 ft. The suction pumps, whichcan handle 15, 000 bbl/d are started, but the safety valves areclogged and a vacuum is drawn in the tank. The roof is flatan..
a tiger leaps horizontally from a 7.5 meter high rock with a speed of 4.5 ms. how far from the base of the rock does
A cylinder which is in a horizontal position contains an unknown noble gas at 5.26 × 104 Pa and is sealed with a massless piston. calculate the change in internal energy of the system
Calculate the force exerted on a rocket, given that the propelling gases are expelled at a rate of 1400kg/s with a speed of 7.1×104m/s
Consider a bright star in our night sky. Assume its distance from Earth is 28.1 light-years (ly) and its power output is 4.00 1028 W, about 100 times that of the Sun. Find the intensity of the starlight at the Earth
A field mouse trying to escape a hawk runs east for 6.0m , darts southeast for 3.8m , then drops 1.8m down a hole into its burrow
A football quarterback is moving straight backward at a speed of 2.0 m/s when he throws a pass to a player 20.0 m straight downfield. How long does it take to get to the receiver
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