Acylinder measuring wide and high is filled with gas. the piston is pushed down with a steady force measured to be . calculate the pressure of the gas inside the cylinder. write your answer in units of kilopascals. be sure your answer has the correct number of significant digits

Explanation:

Let us assume that the given cylinder is 2.6 cm wide and its height is 3.1 cm. And, when piston is pushed down then the steady force is equal to 15 N.

Now, radius of the cylinder will be as follows.

            r =

              =

              = 1.3 cm

or,           = 0.013 m         (as 1 m = 100 cm)

As, area of cylinder =

                                =

                                =

Relation between pressure and force is as follows.

             Pressure =

                         =

                         = 25996

Since, 1 = 1 Pa           (as 1 kPa = 1000 Pa)

Therefore,   P = 25996  

                      = 25.99 kPa

                      = 26 kPa (approx)

Thus, we can conclude that pressure of the gas inside the cylinder is 26 kPa.

false

explanation:

boats, things on boats luggage are way more heavy then water.

answer: at 24 february, 2014 the population gets twice of its initial population.

explanation:

since we have given that

the population for alpha city, t years after january 1, 2004 is given as

first we find out the initial population, i.e. t=0,

so, our quadratic equation becomes,

according to question, we have said that if the population has twice its initial population, then it becomes

so, time taken to reach this above mentioned population is given by

now, we know that time can't be negative so, we take t=9.149 years.

hence, at 24 february, 2014 the population gets twice of its initial population.