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Q. The loaded cab of an elevator has a mass of 3.0 103 kg and moves 177 m up the shaft in 23 s at constant speed. At what average rate does the force from the cable do work on the cab?
Q. A 5.5µC and a 4.0µF capacitors are connected in series across a 24V battery. What voltage is required to charge a parallel combination of the two capacitors to the same total energy?
What is the number of conduction electrons. A centrifuge rotor has a moment of inertia of 3.40 x10-2 kg·m2. How much energy is required to bring it from rest to 8000 rpm.
An ocean liner leaves New York City and travels 18.0° north of east for 232 km. How far east and how far north has it gone? In other words, what are the magnitudes of components of the ship's displacement vector in the following directions.
Discover the least value of initial velocity
Polymer diffusion and Calibration of an optical tweezer
A person weighs 670N steps onto a spring scale in the bathroom, and the spring compresses by 0.79 cm. What is the spring constant? And what is the weight of another person who compresses the spring by 0.34 cm.
A loudspeaker of mass 25.0 is suspended the distance of = 2.40 below ceiling by two cables that make equal angles with the ceiling. Each cable has a length of = 2.50. What is the tension in each of cables.
What is speed of the resulting ball of clay
A 5 kg fish is swimming at a speed of 1ms swallows a 1.00 kg fish swimming toward it at 4 m/s. The speed of the larger fish after lunch is what.
The spring is kept from pushing them apart, since they are holding each other. When they release their arms, Al moves off in one direction at a speed of 1.16m/s, while Jo moves off in the opposite direction at a speed of 0.973m/s. Assume that frictio..
If the LED emits light from a circle with diameter 10mm and is to couple to the fiber which has a50 micro meter diameter core .assume it radiates with afull cone angle 30 degree.
What is the angular acceleration
A 2100 kg car traveling to the right at 32m/s is chasing a second car of the same mass that is traveling to the right at 10m/s.
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