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Water is flowing in an open channel that is 2.00 m wide. The water surface is 3.00 m above the bottom of the channel. At a certain point, the elevation of the bottom of the channel rises by 1.00 m, and the water surface dips down 0.500 m,. The top surface of the water is at atmospheric pressure. What volume of water is flowing in the channel per unit time?
The Barringer meteor crater in northern Arizona is 180m deep and 1.2 km in diameter. The fragments of the meteor lie just below the bottom of the crater. what was the meteor's speed at impact
An alkaline D-cell has a voltage of 1.4V and is rated as 11,000mAh. Find the total charge available from the battery
what is the approximate value of the impulse applied to the two-object system due to forces exerted on the system by objects outside the system >> Fnet * delta_t = (vector form)
A kangaroo is capable of jumping to a height of 2.62 m. Determine the takeoff speed of the kangaroo
A circular coil of wire with 70.0 Loops and a radius of 0.250 m is placed in a magnetic field of 10.0 T and oriented so that the coil is perpendicular to the field. Find the maximum power developed in the coil
An ore sample weighs 17.5N in air. When the sample is suspended by a light cord and totally immersed in water, the tension in the cord is 11.2N. Find the total volume of the sample
A particular heat engine has a useful power output of 4.40 kW and an efficiency of 30.0%. The engine expels 7200 J of exhaust energy in each cycle , Find the time interval for each cycle
Suppose you have a near-point distance of 16 cm. The angular resolution of the eye is determined by diffraction, What is the smallest object your bare eye can resolve
A puck of mass m = 1.90 kg slides in a circle of radius r = 23.0 cm on a frictionless table while attached to a hanging cylinder of mass M = 3.80 kg by a cord through a hole in the table
A transformer is to be used to provide power for a computer disk drive that needs 6.6 V (rms) instead of the 120 V (rms) from the wall outlet. Find the number of turns in the secondary
q1. youre carrying a 4.0-m-long 25 poles to a construction site when you choose to stop for a rest. you place one end
An alien race has evolved such that their eyes work exactly like ours except their eyes can be modeled with a biconcave lens. WHen they come to visit us, what kind of glasses would you prescribe
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