A plastic "boat" with a 25 cm2 square cross section floats in a liquid. One by one, you place 50-g masses inside the boat and measure how far the boat extends below the surface. Your data are as follows:. Mass added, m(g) Depth, d(cm)
50 2.9
100 5.0
150 6.6
200 8.6

some think that theories become laws, but theories and laws have separate and distinct roles in the scientific method. a law is a description of an observed phenomenon in the natural world that hold true every time it is tested. it doesn't explain why something is true; it just states that it is true.

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5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it