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ivolga24 [154]
3 years ago
15

The hydrogen stored inside a large weather balloon has a mass of 13.558 g. What is the volume of this balloon if the density of

hydrogen is 0.089 g/L?
Physics
2 answers:
sergij07 [2.7K]3 years ago
8 0

Answer:

152.337 L

Explanation:

To calculate density using volume we use the common equation

D = \frac{m}{V} \\

where

D is the density

m is the mass

V is the volume

This equation can be manipulated to work out volume to:

V = \frac{m}{D} \\\\V = \frac{13.558g}{0.089g/L} \\\\V= 152.337 L

sergejj [24]3 years ago
6 0

       (13.558 gm) · (1 L / 0.089 gm)  =  152.34 L  (rounded)
                                        
 (fraction equal to ' 1 ')  ^
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Una carga de -10Mc está situada a 20cm delante de otra carga de 5 Mc. Calcular la fuerza electrostática en Newton ejercida por u
tino4ka555 [31]

Answer:

a)  force between them is attraction,   b)  F = 1.125 10⁻² N

Explanation:

In this case the electric force is given by Coulomb's law

          F =k \frac{q_1q_2}{r^2}

           

In the exercise they give us the values ​​of the loads

          q1 = - 10 mC = -10 10⁻³ C

          q2 = 5 mC = 5 10⁻³ C

           d = 20 cm = 0.20 m

let's calculate

          F = 9 10⁹ \frac{10 \ 10^{-3} \ 5 \ 10^{-3}}{0.20^2}

          F = 1.125 10⁻² N

To find the direction of the force we use that charges of the same sign repel each other, as in this case there is a positive and a negative charge, the force between them is attraction

7 0
3 years ago
A doctor has a patient blow on one side of a U-shaped tube that is partially
mart [117]

Answer:

A. 150 Pa

Explanation:

Answer is 150 Pa

8 0
3 years ago
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lora16 [44]

Answer:

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Explanation:

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5 0
3 years ago
About ________ percent of wais scores fall between 70 and 130.
stiv31 [10]
It is about 95%. The Wechsler Adult Intelligence Scale-IV is an IQ test that is given by therapists and measures worldwide scholarly working. It incorporates both verbal and nonverbal parts. The normal score for all tests and subtests is 100; therefore, a score of more than 100 is better than expected and beneath 100 is underneath normal.
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In the context of energy transfers with hot and cold reservoirs, the sign convention is that _______________.
Likurg_2 [28]

Answer:

B. QC > 0; QH < 0

Explanation:

Given that there are two reservoir of energy.

Sign convention for heat and work :

1.If the heat is adding to the system then it is taken as positive and if heat is going out from the system then it is taken as negative.

2. If the work is done on the system then it is taken as negative and if the work is done by the system then it is taken as positive.

From hot reservoir heat is going out that is why it is taken as negative

Q_H

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Q_C>0

That is why the answer will be

Q_H ,Q_C>0

8 0
3 years ago
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