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1. How does the acceleration experienced by a fighter pilot compare to the potential acceleration experienced by passengers and vehicles in a crash? What acceleration does an occupant feel when decelerating to a stop from 40 m/s in a tenth of a second? How d oes this change if the time is doubled?
2. What is a "crumple zone"? What is their purpose, and why do they increase safety during a crash? Refer to specific physics concepts.
A mass of 125g is suspended from a spring of a spring constant of 38N/m. When this mass is pulled down 3mm and set in oscillation, what is the period and frequency of the oscillation? How different would be both, the period and frequency, if the m..
An AC voltage of the form ?v = 100 sin 1 000t, where ?v is in volts and t is in seconds, is applied to a series RLC circuit. Find the average power delivered to the circuit
a beam of white light is shined at normal incidence onto the outside of a soap bubble(index of soap solution = 1.340). What is the thinnest wall thickness of the bubble
A 5 cm diameter coil has 20 turns and a resistance of 1 Omega. A magnetic field perpendicular to the coil is B = 0.02t + 0.1 t^2, where B is in tesla and t is in seconds. Find an expression for the induced current I(t) as a function of time.
A ball, initially at y = 0, is thrown straight down and takes 1.40 s to move 13.8 m in the - y direction. Calculate the initial velocity of the ball
Suppose that a fission neutron, emitted with an energy of 2 Me V, slows down to an energy of 1 eV as the result of successive collisions in a moderator. How many collisions are required if the moderator is Hydrogen
An object is launched with an initial velocity of 8.0 m/s to the horizontal from 327cm above the ground level. What is the final speed of the object
two charges are located on the x axis q1 4.6c at x1 5.5 cm and q2 6.0c at x2 -3.1 cm. two other charges are located
White light strikes a diffraction grating (730 lines/mm) at normal incidence. Find the longest wavelength that forms a second-order maximum
an object is located 18.1 cm in front of a convex mirror the image being 14.5 cm behind the mirror. a second object
Richard is driving home to visit his parents. 140 mi of the trip are on the interstate highway where the speed limit is 65 mph. How many minutes does he save
A moving 4.3 kg block collides with ahorizontal spring whose spring constant is 321 N/m, What is the speed of the block when it hits the spring
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