What is the minimum work that a motor must do to lift a 70 lb object from the floor to a height of 14 feet?
a. 5 b. 70 c. 700 d. 980 e. 2010 ft-lbs
d
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Magma viscosity depends on the silica content and the ______________ of the magma
Fill in the blank(s) with correct word
A uniform rod of mass M = 1.2 kg and length L = 0.80 m, lying on a frictionless horizontal plane, is free to pivot about a vertical axis through one end, as shown. The rotational inertia of the rod about this axis is given by (1/3)ML2. If a force (F = 5.0 N, ? = 40°) acts as shown, what is the resulting angular acceleration about the pivot point?
?
?
a.
16 rad/s2
b.
12 rad/s2
c.
14 rad/s2
d.
10 rad/s2
e.
33 rad/s2
Devil's Tower National Monument is 1280 ft high. Convert this height to meters
Tides are caused because different parts of the earth's oceans are at different distances from the moon
Indicate whether the statement is true or false