Physics, 02.11.2019 02:31 arrow87654
Hardness in groundwater is due to the presence of metal ions. true or false
Answers: 2
Physics, 21.06.2019 22:30, dyamondgeorge1oy4nex
During takeoff, the sound intensity level of a jet engine is 170db at a distance of 34 m. what's the sound intensity level at a distance of 1.0 km?
Answers: 2
Physics, 22.06.2019 01:30, chloe1107
Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.
Answers: 1
Physics, 23.06.2019 01:30, ramanpreet
Which statements did both aristotle and ptolemy assume? check all that apply.
Answers: 1
Hardness in groundwater is due to the presence of metal ions. true or false...
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