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Xelga [282]
3 years ago
5

Science can only test questions that involve the natural world.

Physics
2 answers:
Leviafan [203]3 years ago
5 0

Answer:False

Explanation:

Anything with evidence it can test.

Studentka2010 [4]3 years ago
5 0

Answer:

False

Explanation:

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The answer is B. Both NPN and PNP transistors consist of a base composed of an N-type material.
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A pickup truck is traveling down the highway at a steady speed of 30.1 m/s. The truck has a drag coefficient of 0.45 and a cross
Sav [38]

Answer:

The energy that the truck lose to air resistance per hour is 87.47MJ

Explanation:

To solve this exercise it is necessary to compile the concepts of kinetic energy because of the drag force given in aerodynamic bodies. According to the theory we know that the drag force is defined by

F_D=\frac{1}{2}\rhoC_dAV^2

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V=30.1m/s

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W = F_D d

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v is the velocity and t the time. However the time is given in seconds but for this problem we need the time in hours, so,

W=(807.25N)(30.1m/s)(3600s/1hr)

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3 years ago
Two concurrent forces of 6 newtons and 12 newtons could produce the same effect as a single force of?
snow_tiger [21]
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