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A student in a laboratory connects a 10.0-ohm resistor, a 15.0-ohm resistor, and a 20.0-ohm resistor in series and then connects the arrangement to a 50.0-V DC source. How much power is expended in the circuit? Answer in W.
A 0.058 kg arrow is fired horizontally. The bowstring exerts an average force of 65 N on the arrow over a distance of 0.90 m. With what speed does the arrow leave the bow
A 200 gram sample of ice initially at 0ºC is sealed in a thermally insulated calorimeter with 30 grams of steam (water vapor) initially at 100ºC. What is the equilibrium temperature of the system
you charge an initially uncharged 88.9-mf capacitor through a 23.7nbspomega resistor by means of a 9.00-v battery
150 g of ice at -10.5 oC is raised to the melting point and then raised to 76.0 oC. How much heat is added to the system
Many cultures around the world still utilize a simple weapon called ablowgun, a tube with a dart that fits tightly inside. A sharp breath into the end of the tube launches the dart. When exhaling powerfully, a healthy person can supply air at a gauge..
During a test, a NATO surveillance radar system, operating at 12 GHz at 155 kW of power, The aircraft reflects radar waves as though it has a cross-sectional area of only 0.22 m2. What is the power of the aircraft's reflection
A 10.0 kg block of metal is suspended froma scale and immersed in water. The dimensions of the blockare 12.0cm x 10.0cm x 10.0cm. What is the reading of the spring scale
Block 1, with mass m1 and speed 5.0 m/s, slides along an x axis on a frictionless floor and then undergoes a one-dimensional elastic collision with stationary block 2, How far into that region do the two blocks slide
A 0.280-kg ball makes an elastic head-on collision with a second ball initially at rest. The second ball moves off with one fourth the original speed of the first ball. What is the mass of the second ball?
We have pumped 20 bbls of fluid from the cement unit. But we think that we should have already achieved 425 psi at the unit. We are rigged up to do F.I.T and have already pressure tested all surface lines and there are no leaks.
What is the internal resistance of a 12 V car battery whoseterminal voltage drops to 9.90 V when the starter draws 73.8 A? What is the resistance of the starter
A ball of mass 1.5 kg is thrown upward. It leaves the throwers hand with a velocity of 10 m/s. Calculate the average force acting on the ball
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