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An arrow has a velocity of 45.0 m/s when it reaches a straw target. If its tip comes to rest at a depth of 20.0 cm into the straw, estimate its average acceleration while coming to rest.
A 0.70-kg disk with a rotational inertia given by MR2/2 is free torotate on a fixed horizontal axis suspended from the ceiling. A string is wrapped around thedisk and a 2.0-kg mass hangs from the free end. I
An electron is moving at a speed of 1.2*10^4 m/s in a circular path of radius of 1.9 cm inside a solenoid. Find the strength of the magnetic field inside the solenoid
A rock of mass 33 kg accidentally breaks loose from the edge of a cliff and falls straight down. The magnitude of the air resistance that opposes its downward motion is 242 N. What is the magnitude of the acceleration of rock.
A 2 meter wire carrying 0.9 A of current is at a 90 degree angle to a magnetic field. compute the strength of the field
Assume that the protons in a hot ball of protons each have akinetic energy equal to kT, what is the least separation anytwo protons can have
An engine works at 23.0% efficiency. The engine raises a 5.00-kg crate from rest to a vertical height of 8.0 m, How much heat input is required for this engine
q1. a soccer player kicks a ball giving it an initial velocity of 17.2 ms in the horizontal direction and 12.0 ms in
A pressure gage located 1 m off the bottom in 10 m depth of water measures an average maximum pressure of 10 N/cm2 having an average period of 9 sec
A planet of total mass M and radius R has a non-uniform density such that p(r) = po (1-r/R), Determine the gravitational field g(r) at a point r ? R inside the planet
photons of wavelength 65.0 pm are compton-scattered from a free electron which picks up a kinetic energy of 0.73 kev
for the isomerization of n-butane to isobutene we have g -rt lnk where r 1.9872 and k isobutenen-butane the temperature
the membrane that surrounds a certain type of living cell has a surface area of 7.1 x 10-9 m2 and a thickness of 1.6 x
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