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Dima020 [189]
2 years ago
9

A 9.0 V battery is connected across two resistors in series. If the resistors have resistances of and what is the voltage drop a

cross the resistor?
Select one:

A. 4.6 V B. 9.4 V C. 8.6 V D. 4.4 V​
Physics
1 answer:
andreyandreev [35.5K]2 years ago
4 0

Answer:

the answer to the question is known as D

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length f′0 when the eye is presbyopic and by a screen (the retina) at the distance d from the

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A ball is launched vertically with an initial speed of y˙0= 50 m/s, and its acceleration is governed by y¨=-g-cDy˙2, where the a
stira [4]

Answer:

Explanation:

Given

acceleration is given by

a=-g-c_Dv^2

where \ddot{y}=a

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Also acceleration is given by

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ds=\frac{v}{a}dv

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\Rightarrow Let -g-0.001v^2=t

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at\ v_0=50\ m/s,\ t=-g-0.001(50)^2

t=-g-2.5

at v=0,\ t=-g

\int_{0}^{s}ds=\int_{-g}^{-g-2.5}\frac{-dt}{0.002t}

\int_{0}^{s}ds=\int^{-g}_{-g-2.5}\frac{dt}{0.002t}

s=\frac{1}{0.002}lnt|_{-g}^{-g-2.5}

s=\frac{1}{0.002}\ln (\frac{g+2.5}{g})

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when air drag is neglected maximum height reached is

h=\frac{v_0^2}{2g}

h=\frac{50^2}{2\times 9.8}

h=127.55\ m

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3 years ago
A projectile is launched from the ground at an angle of 60o above the horizontal. At what point in its trajectory does it have t
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The acceleration of gravity is practically equal everywhere on earth, so during its trajectory, we have to take into consideration only the acceleration because of gravity.

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2 years ago
Calculate the wavelength of a wave if 5 complete waves occupy a length of 20m
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