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3 years ago

14

During science class,while studying mixtures you mix together salt and sand.Your teacher challenges you to separate the sand.wha

t property could you use and how you use it?

1 answer:

Serggg [28]3 years ago

4 0

Put it in water, the salt will disolve

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Sirius and its companion orbit around a common center of mass with a period of 50 years. The mass of Sirius is 2.35 times the ma

s2008m [1.1K]

Answer:

1 solar masses

Explanation:

-Sirius has to maintain equilibrium with it's companion.

-Let x be the mass of Sirius and y be the mass of it's companion.

-From the question, we know that Sirius is 2.35 times heavier than it's companion:

$\frac{x}{y}=2.35\\\\\frac{x}{y}=\frac{2.35}{1}$

Hence, the mass of it's companion is 1 solar masses

3 0

3 years ago

The normal force of a parked car is 15,000 Newtons. The coefficient of static friction between the rubber of the tires and the a

Shtirlitz [24]

Answer:

11250 N

Explanation:

From the question given above, the following data were obtained:

Normal force (R) = 15000 N

Coefficient of static friction (μ) = 0.75

Frictional force (F) =?

Friction and normal force are related by the following equation:

F = μR

Where:

F is the frictional force.

μ is the coefficient of static friction.

R is the normal force.

With the above formula, we can calculate the frictional force acting on the car as follow:

Normal force (R) = 15000 N

Coefficient of static friction (μ) = 0.75

Frictional force (F) =?

F = μR

F = 0.75 × 15000

F = 11250 N

Therefore, the frictional force acting on the car is 11250 N

3 0

3 years ago

The kinetic molecular theory of gases predicts pressure to increase as the temperature of a gas increases because

yan [13]

It’s magic my friend enjoy

8 0

4 years ago

Select the best answer for the question.

Aleonysh [2.5K]

Answer:

I think the answer will be water ,sorry if ik wrong

4 0

3 years ago

A circut contains a 2 microfarads and a 20 microfarads capacitor connected in parallel. What is the total capacitance of the cir

garik1379 [7]

The answer to this question would be:C. 22mf

In this question, there are two capacitors that connected in parallel. The formula to count the capacitor is the opposite of the formula used for the resistor. If constructed in series, the capacitor will have reduced capacitance. For parallel condition the equation would be:

Ctotal= C1+C2
C total= 2 mf+ 20mf= 22mf

5 0

4 years ago