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A police car is traveling at a velocity of 19.0 m/s due north, when a car zooms by at a constant velocity of 45.0 m/s due north. After a reaction time of 0.700 s the policeman begins to pursue the speeder with an acceleration of 5.30 m/s2. Including the reaction time, how long does it take for the police car to catch up with the speeder?
Air undergoes a polytropic expansion process in a piston-cylinder assembly from 75 psia and 300 F to 15 psia. Employing the ideal gas model with constant specific heat ratio k, determine the temperature at the end of the process and the amounts of wo..
For a diverging lens (f = â€"16.0 cm), find the image distance for an object that is 16.0 cm from the lens. Determine the magnification of the lens
the magnetism of the earth acts approximately as if it originates from a huge bar magnet within the earth. which of the
(a) A hydrogen atom has its electron in the n=3 level. The radius of the electron's orbit in the Bohr model is 0.476 nm. Find the de Broglie wavelength of the electron under these circumstances.
A typical power plant uses some fuel as the source of heat (QH) to drive a heat engine that does work (W) to drive a generator that is connected to the electrical grid.What is rate of flow and How do we find the power
A small 0.500-kg object moves on a frictionless horizontal table in a circular path of radius 1.00 m. The angular speed is 6.28 rad/s. The object is attached to a string of negligible mass that passes through a small hole in the table at the cente..
A typical capacitor in an MP3 player has C = 5 ?F. If a charge ±37 ?C is placed on the plates, what is the voltage across the capacitor?
You find a used battery and discover that it is no longer strong enough to power your CD player. What is the potential difference
A concave mirror has a focal length of 52 cm. The image formed by this mirror is in front of the mirror and located 106 cm away from it. What is the object distance
One possible solution for the wave function ψn for the simple harmonic oscillator is ψn =A(2αx2 - 1)e(-αx^2)/2 where A is a constant. Determine what is the value of the energy level En
A parallel plate capacitor has a plate area of 0.815 m2 and a plate separation of 2.05 millimeter. Explain what is its capacitance
A drunk driver in a 2300kg car plows into a 2100kg parked car with its brake set. Police measurements show that the two cars skid together a distance of 20m before stopping. If the effective coefficient of friction is 0.68, how fast was the drunk goi..
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