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3 years ago

6

.Name the control group _______ 2.Name the experimental group 3.Name the independent va

riable __________________ 4.Name the dependent variable __________

1 answer:

PIT_PIT [208]3 years ago

8 0

Answer:

please

Explanation:

what is the story

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A pipe leads from a storage tank on the roof of a building to the ground floor. The absolute pressure of the water in the storag

Fudgin [204]

Answer:

6.4 m/s

Explanation:

From the equation of continuity

A1V1=A2V2 where A1 and V1 are area and velocity of inlet respectively while A2 and V2 are the area and velocity of outlet respectively

$A1=\pi (r1)^{2}$

$A2=\pi (r2)^{2}$

where r1 and r2 are radius of inlet and outlet respectively

v1 is given as 1.6 m/s

Therefore

$\pi (0.01)^{2}\times 1.6 = \pi (0.005)^{2}v2$

$V2=\frac {\pi (0.01)^{2}\times 1.6}{\pi (0.005)^{2}}=6.4 m/s$

3 0

4 years ago

A five legged intersection has safety issues. in 2018, the number of crashes reported was 48 and the average 24 hour volume ente

sashaice [31]

Answer:

The crash rate is 22 vehicles per 1 million vehicles

Explanation:

In this question, we are asked to determine the crash rate per million vehicles.

Crash rate is calculated using average crash frequency.

The crash rates are calculated based on the number of crashes per million vehicle miles travelled in a year.

Mathematically;

crash rate = (48 * 1,000,000)/ [(980 + 1560 + 1230 + 900 + 1435)* 365]

= 48,000,000/(6105*365)

= 21.54 approximately 22

4 0

4 years ago

About ceramics: Generally are hard and brittle. a) True b)-False

aniked [119]

Answer:

true

Explanation:

8 0

3 years ago

A balanced bank of delta-connected capacitors is connected in parallel with the load which complex power associated with each ph

Sergio [31]

Answer:

77.2805 μF

Explanation:

Given data :

V = 2460 V

Q = 191 Kva

<u>Calculate the size of Each capacitor </u>

first step : calculate for the value of Xc

Q = V^2/ Xc

Xc ( capacitive reactance ) = V^2 / Q = 2460^2 / ( 191 * 10^3 ) = 31.683 Ω

Given that 1 / 2πFc = 31.683

∴ C ( size of each capacitor ) = $\frac{1}{2\pi *65 *31.683}$ = 77.2805 μF

8 0

3 years ago

Who is the inventor that created the light bulb

vlada-n [284]

Answer:

Thomas Elva Edison

He invented light.

3 0

3 years ago