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BARSIC [14]
4 years ago
5

Can someone help me with #7

Physics
1 answer:
bekas [8.4K]4 years ago
7 0
The ratio of (new volume / old volume) is the same as the ratio of (new temperature / old temp).

Just remember that you have to use the ABSOLUTE temperatures.

An absolute temperature is (Celsius + 273).
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A 1700kg rhino charges at a speed of 50.0km/h. what average force is needed to bring the rhino to a stop in 0.50s?
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From 50km/h to 0km/h in 0.5s we need next acceleration:
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50km/h = 50*1000/3600=13.8888 m/s
a = v/t = 13.88888/0.5 = 27.77777 m/s^2

Now we use Newton's law:

F=m*a

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Answer:

0.18216 T

Explanation:

N = Number of turns = 219

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The strength of the magnetic field is 0.18216 T

8 0
3 years ago
Suppose you want to test the hypothesis that plants grow taller when they receive more sunlight. Identify and independent variab
ollegr [7]
The result that should be established is in the form
y = f(x) 
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Clearly,
x, the amount of sunlight is the independent variable. It can be controlled.
y, the measured amount of growth is the dependent variable.

Answer:
The independent variable is the amount of sunlight.
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