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A 55.4 g arrow traveling at 64.7 m/s hits a bale of hay and stops after entering 0.37 m into the hay. Assuming constant acceleration, find the magnitude of the force in N by the bale on the arrow.
An airplane having a mass of 10000kg and moving at 200mph is at an altitude of 15000m. What are the airplanes kinetic and potential energy
A compound microscope in which the objective and eyepiece are 30.2 cm apart uses an objective lens with fobj = 1.0 cm, What is the magnification of the microscope
A proton accelerates from rest in a uniform electric ?eld of 677 N/C. At some later time, its speed is 9.4 × 10 5 m/s. how far has it moved in this time interval
a student standing on a stationary skateboard tosses a textbook with a mass of mb 1.55 kg to a friend standing in
A laser beam of wavelength 488.0 nm is shined on a grating of grating constant 15000 lines per inch. What is the maximum order can be observed
A model rocket blasts off from the ground, rising straight upward with a constant acceleration that has a magnitude of 88.8 m/s2 for 1.58 seconds, at which point its fuel abruptly runs out.
When light strikes the surface between two materials from above, the Brewster angle is 61.0°. What is the Brewster angle when the light encounters the same surface from below
A rectangle coil of 55 turns, dimensions of 0.100m by 0.200m and a total resistance of 10.0 ohms rotates with angular speed 33.0 rad/s about the y axis in a region, Calculate the maximum induced emf in the coil
A standard deck of cards contains 52 different cards. A poker hand consists of five cards, chose randomly. How many different poker hands are there
A vector {vec A} has a magnitude of 40.0 {rm m} and points in a direction 20.0 ^circ below the positive x axis. A second vector, {vec B}, has the magnitude of 75.0 {rm m} and points in a direction 50.0 ^circ above the positive x axis.
80 cm3 of water takes 12 min to cool from 40?C to 15?C in a draft; it is contained in a copper calorimeter of mass 150 g, Calculate the specific heat of the suspension in SI units
A proton high above the equator approaches the Earth moving straight downward with a speed of 345m/s. Find the acceleration of the proton
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