The ______________ scale gives an absolute measure of the energy released by an earthquake
Fill in the blank(s) with correct word
Richter
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A 2.00 eV photon has what frequency?
a. 
b. 
c. 
d. 
e. 
The SI units of acceleration are
a. mi/h b. km/h c. m/s d. m/s2 e. none of the above
A 1.2-m high by 2.8-m wide vertical rectangular gate is used to control the flow of water from a reservoir to a grinding mill. A frictionless hinge runs along the bottom of the gate. The minimum force acting normal to and at the very top of the gate needed to hold the gate shut if the water is at the very top of the gate is nearest:
(A) 6590 N (B) 9800 N (C) 10 000 N (D) 13 300 N
If a person is nearsighted the corrective lens will:
a. take an object at the far point and form an image at 25 cm. b. take an object at 25 cm and form an image at the far point. c. take an object at infinity and form an image at the far point. d. take an object at infinity and form an image at 25 cm.