Apressure is applied to 20 l of water. the volume is observed to decrease to 18.7 l. calculate the applied pressure

Applied  pressure is 1.08 10⁵ Pa

Explanation:

This exercise is a direct application of Boyle's law, which is the application of the state equation for the case of constant temperature.

      PV = nR T

If T is constant, we write the expression for any two points

    Po Vo = p1V1

From the statement the initial pressure is the atmospheric pressure 1.01 10⁵ Pa, so we clear and calculate

      1 Pa = 1 N / m2

     P1 = Po Vo / V1

     P1 = 1.01 10⁵  20/18.7

     P1 = 1.08 10⁵ Pa

a.) is the correct answer.

explanation:

what was the acceleration of the 2 kg cart?

⇒ 16.0 cm/s2

what was the acceleration of the 4 kg cart?

⇒ 8.1 cm/s2

what was the acceleration of the 6 kg cart?

⇒ 5.3 cm/s2