Physics, 27.11.2019 16:31 sydneyrasmussen
The following students measure the density of a piece of lead three times. the density of lead is actually 8.9 g/cm3. considering all of the results, which person’s results are both accurate and precise?
a. jenny: 8.55 g/cm3, 8.34 g/cm3, 8.04 g/cm3
c. lila: 8.89 g/cm3, 8.91 g/cm3, 8.92 g/cm3
b. brad: 8.63 g/cm3, 8.64 g/cm3, 8.65 g/cm3
d. none of the above have precise and accurate measurements.
Answers: 2
Physics, 22.06.2019 17:40
Scientists follow specific processes in order to determine valid explanations and conclusions from observations. david observed strange lights in the sky above his home outside of roswell, new mexico. the only explanation that makes sense to him is that there are ufos in the area. what should david do next to verify his explanation?
Answers: 1
Physics, 22.06.2019 19:00
Friction removes energy from objects in motion. which statement best describes how this works? a) friction transforms ke into thermal energy b) friction transfers thermal energy to ke c) friction transforms te into pe d) friction transforms pe into ke e) friction transfers ke into pe
Answers: 1
Physics, 23.06.2019 00:00
If water vapor with the mass of 35.0 grams is cooled and condensed into water in a closed system such as a closed glass jar, what is the mass of the water after the water vapor completely condenses? a) 34.5 grams b) 35.0 grams c) 35.5 grams d) the mass cannot be determined without knowing the volume
Answers: 2
Physics, 23.06.2019 04:31
Describe the three ray tracing steps used to identify an image for the given situation.
Answers: 1
The following students measure the density of a piece of lead three times. the density of lead is ac...
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