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A magician pulls a tablecloth from under a 200 g mug located 30.0 cm from the edge of the cloth. The cloth exerts a friction force of 0.100 N on the mug, and the cloth is pulled with a constant acceleration of 3.50 m/s2. How far does the mug move relative to the horizontal tabletop before the cloth is completely out from under it? Note that the cloth must move more than 30 cm relative to the tabletop during the process.
A motorist travelling at 82 km/hr is being chased by a police car at 131 km/hr. If the police car starts from 3.5 km back, how long does it take to catch the motorist? Leave time in hours.
An alert physics student stands beside the tracks as a train rolls slowly past. He notes that the frequency of the train whistle is 443 Hz when the train is approaching him.
A vector has components of 10.0 units along the x axis and 11.0 units along the y axis. What is the magnitude of the vector
A point charge of magnitude 9.15uC is at the center of a cube with sides of length 0.470m. find the electric flux through each of the six faces of the cube
A car moving at 10.0 m/s encounters a bump that has a circular cross-section with a radius of 30.0 m. when the car is at the top of the bump
Plane monochromatic waves with wavelength 520 nm are incident normally on a plane transmission grating having 350 slits/mm
1. an atom has 8 protons and 17 nucleons. if it undergoes beta - decay what are the number of protons and neutrons
An electron is placed in a uniform electric field of strength 210 N/C. If the electron is at rest at the origin of a coordinate system at t = 0 and the electric field is in the positive x-direction
Unpolarized light with an average intensity of 845 W/m2 enters a polarizer with a vertical transmission axis. What is the orientation angle of the second polarizer relative to the first one
Compressed air can be pumped underground into huge caverns as a form of energy storage. The volume of a cavern is 4.9 Ã- 105 m3, how many homes could this internal energy serve
A cooling fan is turned off when it is running at 175rpm. What was the fan's angular acceleration, assumed constant
A sample of an ideal gas has a volume of 0.0100 m3, a pressure of 100 103 Pa, and a temperature of 300 K. What is the number of moles in the sample of gas
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