Edpuzzle My Classes
MULTIPLE CHOICE QUESTION
5. An 1800 kg luxury car at rest is struck from
behind by a compact car with a mass of 900 kg
moving at +20.0 m/s. The two cars become
entangled in the collision. A) What is the velocity of
the entangled mass after the collision?
Solve
20 m/s
Before:
58.2 m/s
v. = 20 m/s
6.67 m/s
0.0 m/s
After:
VE = ?
Rewatch
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US
09:00

The consumption of fossil fuels could be

I’ve been stuck on this for a while

Acommon technique in analysis of scientific data is normalization. the purpose of normalizing data is to eliminate irrelevant constants that can obscure the salient features of the data. the goal of this experiment is to test the hypothesis that the flux of light decreases as the square of the distance from the source. in this case, the absolute value of the voltage measured by the photometer is irrelevant; only the relative value conveys useful information. suppose that in part 2.2.2 of the experiment, students obtain a signal value of 162 mv at a distance of 4 cm and a value of 86 mv at a distance of 5.7 cm. normalize the students' data to the value obtained at 4 cm. (divide the signal value by 162.) then calculate the theoretically expected (normalized) value at 5.7 cm.