Physics, 30.07.2019 23:00 jalynholden07
Five metal samples, with equal masses, are heated to 200oc. each solid is dropped into a beaker containing 200 ml 15oc water. which metal will cool the fastest? a) aluminum b) copper c) gold d) platinu which sample of copper would demonstrate the greatest increase in temperature if 500 j of energy were added to the sample? a) 0.5 kg b) 1.0 kg c) 1.5 kg d) 2.0 kg eliminate
Answers: 1
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A2000 kg car is rounding a curve of radius 200 m on a level road. the maximum frictional force the road can exert on the tires of the car is 4000 n. what is the highest speed at which the car can round the curve?
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Astone is thrown with a speed v0 and returns to earth, as the drawing shows. ignore friction and air resistance, and consider the initial and final locations of the stone. which one of the following correctly describes the change δpe in the gravitational potential energy and the change δke in the kinetic energy of the stone as it moves from its initial to its final location? options a.δpe = 0 j and δke = 0 j b.δpe is positive and δke is negative c.δpe = 0 j and δke is positive d.δpe is negative and δke is positive e.δpe = 0 j and δke is negative
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Five metal samples, with equal masses, are heated to 200oc. each solid is dropped into a beaker cont...
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