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Studentka2010 [4]

3 years ago

14

How many helium-filled balloons would it take to lift a person? Assume the person has a mass of 76 kg and that each helium-fille

d balloon is spherical with a diameter of 35 cm .

1 answer:

sergij07 [2.7K]3 years ago

7 0

Answer:

15200 i think im not 100% sure but i tried doing the math

Explanation:

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A kitchen mixer requires 375 W of electric power. If a voltage of 125 V is available to operate the mixer, what is the required

jenyasd209 [6]

Watts=V*I so in turn I= W/V 375/125 = 3
It would take 3 Amps

6 0

2 years ago

En un m.A.S. La amplitud tiene un valor de 10 centimetros y el periodo es de 2 segundos calcular el valor de la velocidad de 0.8

Ivanshal [37]

Answer:

v1=18.46m/s

v2=29.8cm/s

Explanation:

We know that

$A=10cm\\T=2s$

the equation of the motion is

$x=Acos(\omega t)\\$

we can calculate w by using

$\omega=\frac{2\pi}{T}=\frac{2\pi}{2}=\pi$

Hence, we have that

$x=10cm*cos(\pi t)\\$

the speed will be

$v=-\omega*Asin(\omega t)\\|v(0.8)|=|\pi*10cm*sin(\pi *0.8)|=18.46\frac{cm}{s}\\|v(1.4)|=|\pi*10cm*sin(\pi *1.4)|=29.8\frac{cm}{s}$

hope this helps!

6 0

3 years ago

Is James Charles a boy or a girl ? I am so confused

eimsori [14]

Answer:

both

Explanation:

and I'm serious he is literally both

7 0

2 years ago

Plan a controlled experiment to investigate how an object’s position is related to the amount of its potential energy by measuri

igor_vitrenko [27]

Answer:

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1 year ago

A water wave approaches a wall with a small hole in it. The wave is blocked by the wall, except for the part that goes through t

Eduardwww [97]

Answer:

diffraction

Explanation:

took da test

7 0

1 year ago