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you have your bicycle upside down for repairs, with 66 cm diameterwheel spinning freely at 230 rpm. The mass of the wheel is 1.9 kgand is concentrated mostly at the rim. You hold a wrench againstthe tire for 3.1 seconds with a normal force of 2.7N. If thecoefficient of friction between the wrench and tire is 0.46. What is the final angular speed of the wheel?
An amount of an ideal monatomic gas has an initial pressure of 210 kPa, an initial volume of 1.2x10-3 m3, at an initial temperature of 350 K. The gas now undergoes three processes:
A coffee filter of mass 1.5 grams dropped from a height of 2 m reaches the ground with a speed of 0.7 m/s. How much kinetic energy Kair did the air molecules gain from the falling coffee filter? begin from the Energy Principle, and choose as the s..
visible light has a wavelength of approx 0.5 um. What is its frequency in Hz. EM radiation has a frequency of approx 3GHz, what is its wavelength in centimeters.
An asteroid is discovered heading straight toward Earth at 14 km/s.An international team manages to attach a giant rocket engine tothe asteroid. The rocket fires for 10 min, after which the asteroidis moving at 28 degrees to its original path at a sp..
A sinusoidal electromagnetic wave from a radio station passes perpendicularly through an open window that has area 0.300 m2. At the window, How much energy does this wave carry through the window
A 0.157kg ball is thrown straight up from 1.94m above the ground. Its initial vertical speed is 9.60 m/s. A short time later, it hits the ground. What is the total work done by the force of gravity during that time.
The objective lens of a telescope is a symmetric glass lens with 100cm radii of curvature. The eyepiece lens is also a symmetric glass lens. What are the radii of curvature of the eyepiece lens
What was the most interesting part of your visit and is there anything about what you observed that would cause you to want to settle a case or to pursue it fully to trial? What and why?
While preparing tea water in a mine shaft deep underground, you notice that water boils at 105 C. what is your depth below the surface
What is the highest height reached by the rocket. what is its initial speed as it leaves the ground.
An unmarked police car travelling a constant 85 km/h is passed by a speeder. Precisely 2 s after the speeder passes, police officer steps on the accelerator.
When a 2.50kg object is hanging vertically on a light spring described by hooke's law the spring stretches 2.76cm.
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