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Mattie Bartlett
Physics
Abdul has not eaten in a while, so his endocrine system releases hormones that slow the process of digestion, which in turn slows the production of materials for new cells. What process in Abdul is being regulated by hormones?
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Paola Crawford
Physics
A piece of copper is measured to be at 10°C and 115 grams in mass. If 1300 calories were added to it, what was the final temperature of the copper?
21.3°C
103.5°C
386.8°C
125.6°C
135.6°C
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Allen Liu
Physics
In the northern hemisphere, how do the winds of a hurricane rotate? In a clockwise direction In a counterclockwise direction Clockwise in the spring and Counterclockwise in the fall It depends on the direction that the eye of the hurricane is moving.
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Roger
Physics
when you erase a word with a eraser where does the word go?
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Joey Chang
Physics
The atomic number of magnesium is 12. This means that its nucleus must contain
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Alfredo Luna
Physics
Calculate the escape velocity for Mars if its mass=0.12MEarth and the radius=0.55REarth. Show full solving process.
V escape = (2GM/R) ^1/2
M = mass of planet
R = radius of planet
G = gravitational constant (6.67 x 10^-11 x m^3/kg x s^2)
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Leila
Physics
In which part of the scientific method would you make a prediction?
experiment
hypothesis
analysis
formation of question
A statement that explains an observation and is supported by data is a
scientific question
hypothesis
scientific theory
bias statement
In which part of the scientific method would you record your observations?
question
conclusion
experiment
analysis
A scientific statement that describes an observation but does not explain the observation is
just an opinion
a scientific law
a theory
voted on by scientists ... ?
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Carolina Brewer
Physics
You throw a ball vertically upward so that it leaves the ground with velocity 6.48 m/s. (a) what is its velocity when it reaches its maximum altitude
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Devon Lloyd
Physics
What galaxies would you most likely find at the center of a large cluster of galaxies?
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Leonard Herrera
Physics
Why is it incorrect to think that the more digits you include in your answer, the more accurate it is?
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Britney Alexander
Physics
There is a 50 g sample of Ra-229. It has a half-life of 4 minutes.
How much will be left after 12 minutes?
A. 3.13 g
B. 6.25 g
C. 12.5 g
D. 25 g
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Hayden Callahan
Physics
Which of the following is the kinetic rate equation for the addition-elimination mechanism of nucleophilic aromatic substitution? rate = k[aryl halide] rate = k[nucleophile] rate = k[aryl halide][nucleophile] rate = k[aryl halide][nucleophile]2
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Davon Riggs
Physics
True or false?
nuclear fusion happens when uranium combines
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Monserrat Harrison
Physics
Fingernails and muscles are made of proteins, which are polymers of
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Lyric Coffey
Physics
What is the definition of the inner solar system?
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