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An early .75 caliber rifle fires a 12 gram spherical ball at 800 ft/sec with a spin of 1 revolution per 114 mm.
How much energy is in the rifle ball?
What proportion of the energy is spin and what is forward movement?
Two loudspeakers, 5.0 m apart and facing each other, play identical sounds of the same frequency, What is the frequency of the sound (in Hz)
An 88 g arrow is fired from a bow whose string exerts the average force of 110 N on the arrow over a distance of 78.00 cm. What is the speed of the arrow as it leaves the bow.
Suppose we measure the terminal voltage of a rechargeable NiCad battery and find it to be 1.28 V when measured by a voltmeter. calculate the internal resistance of the battery
A train slows down as it rounds a sharp horizontal turn, going from 80.0 km/h to 58.0 km/h in the 13.0 s that it takes to round the bend. Compute the acceleration at the moment the train speed reaches 58.0 km/h
A coil with an inductance of 14.5 H and a resistance of R = 4.0 ohms is suddenly connected to a resistanceless battery with E = 184.2 V. What is the equilibrium current
Two parallel current carrying wires are separated by 12 cm and each are 50 cm in length. Determine the Force acting on each wire due to the other one
Two lenses, one converging with focal length 21.0cm and one diverging with focal length ? 10.0cm , are placed 25.0?cm apart. Find the final image distance from second lens
The position function x(t) of a particle moving along an x axis is x = 4.5 - 4.5t2, with x in meters and t in seconds.
A singly charged positive ion has a mass of 2.53 10-26 kg. After being accelerated through a potential difference of 238 V, Calculate the radius of the path of the ion in the field
In a shuffleboard game, the puck slides a total of 12 m before coming to rest. what was the initial speed of the puck
Using thermogravimetric curve we can relate the mass changes to the stoichiometry involved. calculate the percentage weight loss for the following compounds when they are heated at uniform rate in thermogravimetric analysis.
An automobile having a mass of 1750 kg is placed on a hydraulic lift in a garage. The piston lifting the car is 0.235 m in diameter. What is the force exerted on the small piston
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