Which is the correct equation for calculating the kinetic energy of an object? KE = mgh
1
KE = 2 mv
KE =
-
zat
KE =
E =
$92
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The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

An initially unpolarized light if intensity 500 w/m^2 passes through four polarizers. the transmission axis between adjacent polarizers is 45∘. what percentage of the initial intensity is transmitted by the system?

Asolid round steel rod 6.25 mm in diameter and 375 mm long is rigidly bonded to the end of solid square brass rod 25 mm on a side and 300 mm long. the geometric axes of the bare are along the same line. an axial tensile force of 5.4 kn is applied at the extreme ends of the assembly. for steel e = 200 gpa and for brass e = 90 gpa. determine the total elongation for the assembly.