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A block of solid water (m = 12g, Ti = -5 degress C) is placed as ammo inside a spring loaded cannon. The spring in this cannon has a stiffness of k = 20,000 N/m and is compressed by 1 m. The cannon is oriented so it fires horizontally. Once released, the spring expands and accelerates the block from rest. After launch, the block bounces off the ground 7 times leaving dents along the way and comes to a rest 25 m from the front of the cannon. During this ordeal, 50% of the energy went into permanent deformation and 10% went to sound. If the final temperature of the block is 0 degrees C, then by what percent has the block melted? Otherwise, what is the final temperature of the block?
A person has far points 72.1cm from the right eye and 97cm from the left eye. What are the powers of the corrective lenses
"Fat Man," the atomic bomb dropped on Nagasaki at the end of World War II released approximately 88 x 10^12 J of explosive energy
The femur (the largest leg bone) of a certain person has a cross sectional area of 3.35×10-4m2 and a length of 47 cm. what is the force required to fracture this femur
A 20 liter tank of helium is at a pressure of 172kPa at a temperature of 0 C. What is the speed of the helium atoms in the tank at this new volume
A constant force of 45 N directed at angle ? to the horizontal pulls a crate of weight 100 N from one end of a room to another a distance of 4 m. Given that the vertical component of the pulling force is 12 N, calculate the work done by the force in ..
A low-power laser used in a physics lab might have a power of 0.55 mW and a beam diameter of 2.6 mm. Calculate the average light intensity of the laser beam
Two long straight parallel wires are 12cm apart. Determine the force on wire A due to wire B, and the force on wire B due to wire A.
A 3.00 kg block of wood sits on a table. A 3.00 g bullet, fired horizontally at a speed of 550 m/s, goes completely through the block, emerging at the speed of 190 m/s. What is the speed of the block immediately after bullet exits.
An electron passes through a point 3.27 cm from a long straight wire as it moves at 37.3% of the speed of light, Find the magnitude of the electron\'s acceleration at that point
What is the fundamental resonant frequency of the air column if the velocity of sound in the air is 340 m/s.
What is the angle. The velocity of a particle moving in the xy plane is given by = (5.5t - 4.5t2)i + 8.3j
A flask is filled with 1.51 L (L = liter) of a liquid at 96.8 °C. When the liquid is cooled to 17.5 °C, What is the coefficient of volume expansion of the liquid
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