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Pick a variable that is supposedly bell-shaped in probability distribution, gather data, and make a plot of the variable's empirical distribution. Show the distribution as a histogram on a log scale and investigate whether the tails are well-modelled by a Gaussian distribution. [One example of a variable to study is the amplitude of an audio signal.]
A car starts from rest and moves around a circular track of radius 80.0 m. What angle ( in radians ) does the net acceleration make with the car's velocity at this time
A 0.15 kg ball hits a wall with a velocity of (4.00 m/s) + (6.50 m/s) + (5.00 m/s) . It rebounds from the wall with a velocity of (2.00 m/s) + (3.50 m/s) + (-3.20 m/s). What is the change in the ball's momentum
a 24kg dog running at a speed of 3m/s jumps onto a stationary skateboard that has a mass of 3.6 kg. find the momentum after the dog jumps onto the skateboard
An aircraft with a mass of 856 kg accelerates from 0 to 83 m/s in 9 seconds, at which time the aircraft launches. What is the kinetic energy of the aircraft
A particle with mass 1.81 x 10^-3 kg and a charge of 1.22 x 10^-8 C has an initial velocity of vector v = (3.00 x 10^4 m/s)hj^. If the particle enters a magnetic field give by vector B = (1 .63T)i^ + (0.980T)j^, determine the particle's accelerati..
A horizontal 799-N merry-go-round is a solid disk of radius 1.45 m, started from rest by a constant horizontal force of 49.9 N applied tangentially to the edge of the disk
A student presses a book between his hands, as the drawingindicates. The forces that he exerts on the front and back coversof the book are perpendicular to the book and are horizontal. Thebook weighs 28 N.
A light wave travels from point A to point B in vacuum. hat is the difference between the number of waves between A and B with and without the glass plate in place
A student is skateboarding down a ramp that is 8.99 m long and inclined at 24.1 ° with respect to the horizontal. The initial speed of the skateboarder at the top of the ramp is 4.77 m/s. Neglect friction and find the speed at the bottom of the ramp.
Suppose that you hear a clap of thunder 15.5 s after seeing the associated lightning stroke. How far are you from the lightning stroke
an alternating rc circuit is constructed from a 331+/- 3 uF capacitor and a 15+/-.15 ohm resistor connected in series with an alternating voltage source that has a frequency of 100 Hz. Determine phase angle between the supplied EMF and the current..
A cylinder 10 m high, with a cross-sectional area of 0.1 m2, has a mass-less piston at the bottom with water at 20 degrees Celsius on top of it. Find the total heat transfer to the air when all of the water has been pushed out
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