3 years ago

What is three example of technology

Physics

1 answer:

alex41 [277]3 years ago

6 0

Computers, cell phones, and television

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The strength of a magnetic field is an indication of how many flux lines per square inch there are. This is called

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gauss

Explanation:

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3 years ago

The key to generating electricity from coal is the generation of _______.

expeople1 [14]

Answer:

The generation of <u>heat</u>.

Explanation:

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A 0.10 kg meter stick is held perpendicular to a vertical wall by a 2.5 mm string going from the wall to the far end of the stic

il63 [147K]

Explanation:

Sum of moments = 0 (Equilibrium)

T . cos (Q)*L = m*g*L/2

$cos Q = \frac{\sqrt{(2.5^2 - L^2) } }{2.5}$

$T*\frac{\sqrt{(2.5^2 - L^2) } }{2.5} * L = 0.1 *9.81*L/2$

$T = \frac{2.4525}{\sqrt{(2.5)^2 - L^2} }$

b) If the String is shorter the Q increases; hence, Cos Q decreases which in turn increases Tension in the string due to inverse relationship!

$T = \frac{1.962}{\sqrt{(2)^2 - L^2} }$

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3 years ago

Bicycle in its writers have combined a mass of 80 kg in a speed of 6.0 meters per Second what is the magnitude of the average fo

erik [133]

Answer:

F = 120 N

Explanation:

Force x distance = energy

The bike has energy 1/2 . 80 . 6^2 = 1440 J

You are looking at an example of not reading the question properly.

Impulse = Force . time = change in momentum

F . 4 = 80 .6

F = 120 N

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3 years ago

An object has a mass of 50.0 g and a volume of 10.5 cm3. What is the object's density?

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Volume=mass/density

volume=455.6/19.3

volume=23.6 mL

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