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A cable exerts a constant upward tension of magnitude 2.34 ? 104 N on a 2.20 ? 103 kg elevator as it rises through a vertical distance of 1.70 m.
a) Find the work done by the tension force on the elevator (in J).
b) Find the work done by the force of gravity on the elevator (in J).
a crystal is mounted in a goniometer an apparatus that allows it to be turned around its axis.using x-rays of
a 5000 african elephant has a resting metabolic rate of 2500 . on a hot day the elephants environment is likely to be
Then you swing another yo-yo with twice the mass of the first one, but you don't change the length of the string or the period. How do the tensions in the strings differ?
The mass of 34Si is determined by the 30Si(18O, 14O)34Si reaction initiated by 100-MeV 18O particles. The outgoing particles have 86.63 MeV of energy, which can be determined only by measuring the 14O energy and using the conservation of momentum ..
In the first part of the experiment you are asked to plot a graph of force versus length. What will be the expression for the slope of this curve
A 10 kilogram lead ball is dropped from a height of 30 m and it hits the floor at a speed of 20 m/s. Find how much mechanical energy is lost to air resistance
In an R-L-C circuit, R= 400 ohm, Xc= 240 ohm, XL= 580 ohm. The average power consumed in the resistor is 60.0 Watt. Determine what is the rms voltage of the source
A sample is being dated by the radiocarbon technique. If the sample were uncontaminated, its activity would be 0.064 Bq per gram of carbon. Calculate the true age (in years) of the sample
Conduct in-depth research on the topic using, at least, two primary sources, outside of the course textbook, as references. Compose your Case Study assignment deliverable as a scholarly paper.
The index of refraction for red light in water is 1.331, and thatfor blue light is 1.340. If a ray of white light enters the waterat an angle of incidence of 88.20°, what are the under water angles ofrefraction for the blue and red components of the ..
A hotel elevator ascends 160m with a maximum speed of 4.20 m/s. Its acceleration and deceleration both have a magnitude of 1.0 m/s2. How long does it take to make the complete trip from bottom to top.
The length of a spaceship is measured to be exactly 1/3 its restlength. (a) What is the speed parameter β ofthe spaceship relative to the observer's frame?(b) By what integer factor do the spaceship'sclocks run slow, compared to clocks in the observe..
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