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A circular saw blade 0.250 meter in diameter starts from rest. In 5.50second, it reaches an angular velocity of 130 rad/s with constant angular acceleration.
Evaluate the angular acceleration and the angle through which the blade has turned in this time.
A biology student uses a simple magnifier to examine the structural features of an insect's wing. The wing is held 3.60 cm in front of the lens, What angular magnification is achieved
A satellite is placed in orbit 7.2 x 105 mabove the surface of Jupiter. Jupiter has a mass of 1.90 1027 kgand a radius of 7.14 x 107 m. Find the orbital speed of the satellite
A 5 kgblock is placed near the top of a frictionless ramp, which makes an angle of30odegrees to the horizontal. Find the magnitude of the maximum compression of the spring
An ideal gas expands at a constant total pressure of 2.5 atm from 3.45 L to 6.70 L. calculate the total work done by the gas in the process
Calculate the wavelength of light in vacuum that has a frequency of 6.0 1011 Hz and What is its wavelength in water
The concept of thermionic emission is the basis of modern X-ray tubes, which are the workhorse of a medical X-ray image. In this process a filament (a piece of metal in a vacuum) is heated by the application of electrical current.
Two thermally insulated reservoirs each contain 2 kg of water at temperatures of 80 °C and 20 °C respectively, Determine the find equilibrium temperature and find the change in entropy of the local universe in the mixing process
A movie camera with a (single) lens of focal length 85 mm takes a picture of a person standing 35 m away. what is the height of the image in millimeters on the film
In the "before" part of the figure below, car A (mass 1000 kg) is stopped at a traffic light when it is rear-ended by car B (mass 1600 kg). Both cars then slide with locked wheels until the frictional force from the slick road (with a low µk of 0...
question the largest transformer ever built handles a power of 1.50x109 w. this transformer is used to step down 765
Two identical point charges are fixed to diagonally opposite corners of a square that is 0.455 m on a side. Each charge is +2.70 10-6 C. How much work is done by the electric force as one of the charges moves to an empty corner?
When any radioactive dating method is used, experimental error in the measurement of the sample's activity leads to error in the estimated age. find the age of the fossils
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