The time of flight of a projectile, fired horizontally over level ground, is independent of its horizontal ________.
Fill in the blank(s) with the appropriate word(s).
velocity
speed
Physics & Space Science
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A plane stress element on a bar in uniaxial stress has a tensile stress of ?? 5 78 MPa (see figure). The maximum shear stress in the bar is approximately:
(A) 29 MPa
(B) 37 MPa
(C) 50 MPa
(D) 59 MPa
Physics & Space Science
An object is placed 9.5 cm from a lens of focal length 24 cm
(a) Where is the image formed? (b) What is the magnification?
Physics & Space Science
When U-238 emits an alpha particle, the resulting nucleus has
A) 90 protons. B) 91 protons. C) 92 protons. D) 93 protons. E) 94 protons.
Physics & Space Science
When heat is added to a closed system, it goes into
a. work only. b. entropy only. c. internal energy only. d. either (A) or (C) or both.
Physics & Space Science