Suppose that you can crush an aluminum can by dropping a rock of mass m on it from a height h. Which of the following scenarios would crush two cans?
A. dropping a rock of mass 2m from height h
B. dropping a rock of mass m from height 2h
C. dropping a rock of mass 1/2m from height 4h
D. all of the above
E. none of the above
D. all of the above
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Cygnus X-1 was discovered because it is a(n) ________ source in a(n) ________ system
Fill in the blank(s) with correct word
The horizontal component of the velocity of a projectile remains constant during the entire trajectory of the projectile
Indicate whether the statement is true or false
A diffraction grating has 6000. lines per centimeter ruled on it
What is the angular separation between the second and the third orders on the same side of the central order when the grating is illuminated with a beam of light of wavelength 550. nm?
When an automobile moves with constant velocity the power developed is used to overcome the frictional forces exerted by the air and the road. If the power developed in an engine is 50.0 hp, what total frictional force acts on the car at 55 mph (24.6 m/s)? One horsepower equals 746 W