How much mass should be attached to a vertical ideal spring having a spring constant of 39.5 N/m so that it will oscillate at 1.00 Hz?
A) 39.5 kg
B) 2.00 kg
C) 1.00 kg
D) 1.56 kg
E) 6.29 kg
C
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What mode of fracture is present for a smooth tensile specimen when a small amount of plastic strain creates a crack that is of sufficient length to cause fracture?
(a) Mode I (b) Mode II (c) Mode III (d) Ductile
A rock is thrown straight up and reaches a maximum height. Which of the following describes the motion at the maximum height?
A. the velocity is zero and the acceleration is zero B. the velocity is maximum and the acceleration is zero C. the acceleration is increasing and the velocity is zero D. the acceleration is not changing and the velocity is zero
The only Jovian moon to orbit its planet retrograde and out of the equatorial plane is ________
Fill in the blank(s) with correct word
In an isolated system of two bodies that exert gravitational forces on one another, the quantity (quantities) that remain(s) constant is(are)
a. the total energy of the system. b. the total angular momentum of the system. c. the angular positions of the two bodies. d. all of the above. e. only (a) and (b) above.