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Explosives are used to blow a rock apart. The explosion blows the rock into three fragments. Two fragments go off at a 100 degree angle to each other--a 5.8 kg piece at 29.2 m/s and a 3.8 kg piece at 22.1 m/s. Calculate the speed of the third piece, if it has a mass of 5.0 kg
Use Maxwell-Ampère's equation to calculate the maximum strength of the B-field on the perimeter of the plates; when is the B-field maximum
A water hose 4.00 cm in diameter is used to fill a 25.0 L bucket. If it takes 3.00 min to fill the bucket, If the hose has a nozzle 2.00 cm in diameter, find the speed of the water at the nozzle
A rigid, well insulated container contains 10 kg of water. A motor connected to a paddle wheel is used to stir the water at a rate of 100 rad/s. How much toque does the motor need to supply (in N-m) in order for the water to heat up by 10?C in one..
An LC circuit has zero resistance, no battery, a capacitor C=70microFarads, and an inductor L=0.4H connected in a simple loop. The capacitor and inductor store a compined total energy of U=28microJoules.
At the time of this book's printing, the U.S. national debt is about $10 trillion. If payments were made at the rate of $2 000 per second, how many years would it take to pay off the debt, assuming no interest were charged
A monatomic ideal gas at high temperature T in a discharge tube has a triply degenerate excited state at an energy e above the ground state, Find the ratio population of the excited state to that of the ground state
A bus makes a trip according to the position-time graph shown in the illustration. What is the average acceleration (in km/h2) of the bus
A hollow non-conductiong sphere has a uniform charge density ?. The inner and outer radius of the sphere are r1 and r2m respectively. What is the total charge of this sphere
If the tension in each chain at the lowest point is 408 N, find the child's speed at the lowest point.
The primary of a step-down transformer has 290 turns and is connected to a 120 V rms line. The secondary is to supply 17 A at 7 V. Find the number of turns in the secondary, assuming 100% efficiency
Two metal plates are held together by two steel rivets, each of diameter 0.24 cm and length 1.3 cm. How much force must be applied parallel to the plates to shear off both rivets?
What is the magnitude of the acceleration of a modified Atwood machine if the mass of the cart is 3 kg and the hanging mass is 12 kg
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