3 years ago

I need help thanks :)))))))))

Physics

1 answer:

Vikki [24]3 years ago

6 0

A.) wet 21° Celcius, dry 27° Celcius

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3. What two characteristics do you need to include when defining a force? (a) speed and direction (b) strength and direction (c)

KATRIN_1 [288]

Answer:

yes

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4 0

3 years ago

Calculate the density of a 50 ml solution that is 5% water and 95% ethanol. show your calculation.

vichka [17]

The density of the solution from the given compositions of water and ethanol is 799.55 kg/m³.

The given parameters;

Volume of the solution, v = 50 ml
Composition of water, 5%
Composition of ethanol, 95%
Density of water, = 1000 kg/m³
Density of ethanol, = 789 kg/m³

The density of the solution from the given compositions of water and ethanol is obtained by finding the respective amount of water and ethanol composition is the solution.

The density of the solution is calculated as follows;

$\rho = \frac{5(1000 \ kg/m^3) + 95(789 \ kg/m^3)}{100} \\\\\rho = 799.55 \ kg/m^3$

Thus, the density of the solution from the given compositions of water and ethanol is 799.55 kg/m³.

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2 years ago

A very long nonconducting cylinder of diameter 10.0 cm carries charge distributed uniformly over its surface. Each meter of leng

Murrr4er [49]

Answer:

Explanation:

The concept of electric field, force acting on proton is applied and appropriate derivations were made to calculate the distance from the surface as shown in the attached file.