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During 8.09 seconds a motorcyclist changes his velocity from v1,x = -35.1 m/s and v1,y = 13.7 m/s to v2,x =-24.7 m/s and v2,y = 26.5 m/s. Find the components of the motorcycle\'s average acceleration during this process, aav,x and aav,y.
A 63.5kg astronaut is doing a repair in space on the orbiting space station. She throws a 2.35kg tool away from her at 3.60m/s relative to the space station. With what speed will she begin to move\\
A spherical conducting shell has an interior radius of 18 cm and an outer radius of 21cm. The shell carries a net charge of -2.4 micro coulombs. A point charge of charge +6.4 micro coulombs is placed at the center of spherical shell.
A spherical water drop 4.2 ?m in diameter is suspended in calm air due to a downward-directed atmospheric electric field of magnitude E = 15700 N/C. How many excess electrons does it have
A mole of air in a closed container is initially at 300k. Suppose that you now add 10 J of heat to the air, without doing any work on it, what is the total thermal energy of the air
The He-Ne laser shines through a slit in the diffraction plate that is 50 cm from the screen. What fringe spacing would you expect for slits E and F if the stated slit spacing is correct? What difference must there be between the patters produced ..
A high-speed lifting mechanism supports a 790-kg object with a steel cable that is 32.0 m long and 4.00 cm2 in cross-sectional area. Determine the elongation of the cable
A child is walking toward a wall at a speed of 1.00m/s in a direction at right angles to the wall. what is the frequency of the whistle
An airplane has a mass of 1.40 104 kg, and each wing has an area of 33.0 m2. Determine the pressure on the upper wing surface
Find the pressure at pump discharge, rate of flow of a pump, energy required by the pump, and size of the pump motor.
A block of mass m = 309 g is dragged with a string across a rough horizontal table. The string tension is T = 3.59 N, What is the power supplied by the force of friction
The biggest asteroid (Asteroid 2005 YU55 400 m wide) to cruise by the Earth in 35 years made its closest approach on Tuesday November 11/08/2011 at 6:28 p.m. (PST). Find the acceleration and speed of the asteroid in its circular orbit
q1. the critical angle for a special type of glass in air is 41.8. the index of refraction for water is 1.33. what is
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