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A 7 grams bullet, when fired from a gun into a 0.80 kilogram block of wood held in a vise, penetrates the block to a depth of 7 centimeter. This block of wood is next located on a frictionless horizontal surface, and a second 7 gram bullet is fired from the gun into the block. Find to what depth will the bullet penetrate the block in this case?
(............) cm
Describe the characteristics of the pH scale. Compare and contrast acids and bases. Provide examples of some of the products that you know are basic and acidic in nature
Two point charges totalling 7.00 µC exert a repulsive force of 0.300 N on one another when separated by 0.441 m. What is the charge on each? What is the charge on each if the force is attractive?
A cancer patient is undergoing radiation therapy in which protons with an energy of 1.2 MeV are incident on a 0.25 kg tumor. How many protons are absorbed by the tumor
What is the tangential acceleration of a bug on a rim of a 9 in diameter disk if the disk moves from rest to an angular speed of 76 rev/min in 5s? __________m/s squared What is the centripetal acceleration?
The star Sirius is a distance of 8 light years from the earth. If Sirius suddenly stopped shining, how much longer would it be seen on earth
A toroidal solenoid with mean radius r and cross-sectional area A is wound uniformly with N1 turns. A second toroidal solenoid with N2 turns is wound uniformly on top of the first, so that the two solenoids have the same cross-sectional area and m..
The peak value of an alternating current in a 1480 W device is 4.4 A. What is the rms voltage across it
With a little effort, you can blow across a dime on a table and make it land in a cup without touching either cup or dime (tryit). Describe how the dime is lifted.
A woman stands on a scale in a moving elevator. Her mass is 55.0 kg, and the combined mass of the elevator and scale is an additional 755 kg. What does the scale read (in N) during the acceleration
the distance that a certain particle moves may be calculated from the expression d atbt2 where a and b are constants
An engine absorbs 1695 Joule from a hot reservoir and expels 1201 Joule to a cold reservoir in each cycle. Evaluate the output power of the engine if each cycle lasts for 0.301 sec
question1a rock is projected upward from surface of the moon at time t 0.0 s with a velocity of 30 ms.nbspthe
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