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A 1490 kg mid-size car traveling east at 15.2 m/s collides with a 2400 kg mid-size truck traveling north at 26.7 m/s. Assume that upon collision the cars lock together in such a way as to prevent them from separating or rotating significantly. Calculate the distance that the locked cars will skid after the collision assuming that the wheels stop turning after impact and that there is a coefficient of kinetic friction of 0.762 between the sliding rubber tires and the road surfaces.
A spring with spring constant k = 430 N/m is initially compressed x = 1.60 cm. How much work is done by the spring during this process
A 120-V motor has mechanical power output of 2.50 hp. It is 90.0% efficient in converting power that it takes in by electrical transmission into mechanical power, Find the current in the motor
Find the threshold energy that an incident neutron must have when striking an alpha particle to produce a deuterium and tritium nucleus
How many states are occupied if the Fermi level lies 12 meV above the minimum? How would the results differ if the dot were instead modelled with a hard wall at 50 nm radius?
A bicyclist climbs a 2.0km long hill that makes an angle of 7.0° with the horizontal. The total weight of the bike and rider is 750N. How much work is done on the bike and rider by gravity? (The answer given in the textbook is: -180kJ) I'm having tro..
Write a paragraph explaining how Newton's Third Law of Motion is illustrated when a real NASA rocket is launched at Cape Canaveral.
A parallel light beam containing two wavelengths, 480nm and 700nm, strikes a plain piece of glass at an angle of incidence of 60 degrees. Determine the angle between the two beams in the glass
a projectile is launched on the earth with a certain initial velocity and moves without air resistance. another
Green light of a wavelength 550 nm enter a piece of glass that hasindex of refraction n = 1.5. what is the wavelength of the light in air
An autographed baseball rolls off of a 0.54 meter high desk and strikes the floor 0.68 meter await form the desk. The acceleration of gravity is 9.81 m/s2. Find how fast was it rolling on the desk before it fell off
an 18 year old runner can complete a 10.0 km course with an average speed of 4.34 ms. a 50 year old runner can cover
A robot unloads a finished component from a machine and places it on a gravity conveyor. The conveyor accelerates from rest until it reaches the bottom of the conveyor 4.5 seconds later. The component is traveling at a velocity of 1.35 m/s when it..
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