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A car plus its driver has a mass of 1400 kg. when the driver takes his foot off the accelerator, the car slows from 30 m s^-1 to 20 m s^-1 in 20 s.
a) how much work was done by dissipative forces?
b) assuming uniform deceleration, find the average dissipative force?
A 500 lines per mm diffraction grating is illuminated by light of wavelength 510nm. How many diffraction orders are seen
A 1.87 kg rolling hoop with a radius of 6 cm rolls without slipping. If the angular speed of the hoop is 2.82 rad/s , compute rotational kinetic energy of the rolling hoop in Joules
Earthquakes generate sound waves inside Earth. Unlike a gas, Earth can experience both transverse (S) and longitudinal (P) sound waves, how far away did the earthquake occur
What is the speed of a car going v = 1mph in SI units? Notice that you will need to change from miles to meters and from hours to seconds. You can do each conversion separately. mke Use of the facts that 1 mile = 1609m and 1hour = 3600s.
A charged particle of mass m and positive charge q moves in a uniform constant electric and magnetic fields, E pointing in the y direction and B in the z direction, Find the electric force on the particle
Two boxes of masses, m and 2m, are in contact with each other on a frictionless surface. What is the acceleration of the more massive box
A refracting telescope is used to view the Moon (diameter 3480 km, distance from Earth 385,000 km). What should be the distance between the lenses
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. What is the radius of a chamber
A thin-walled hollow sphere with a mass of 22 kg is rolling without slipping. Its translational speed is 1.6 m/s. Determine the total kinetic energy of the rolling sphere
A simple harmonic oscillator consists of a block of mass 2.2kg attached to a spring of spring constant 26N/m. When t = 1.60 s, the position and velocity of the block are x = 0.128m and v = 3.170 m/s. (a) What is the amplitude of the oscillations? ..
A new General Electric kitchen stove has a mass of 68kg and the dimensions. The stove comes with a warning that it can tip forward if the person stands or sits on oven door when it is open.
a closed Gaussian surface in the shape of a cube of edge length 2.30 m. What is the net charge contained by the cube
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