The joule (J) is a unit of energy. Recall that energy may be converted between many different forms such as mechanical energy, thermal energy (heat), chemical energy, electrical energy, and light. The mechanical energy produced by a system is called work. When work is accomplished through the changing volume of a gas, it is called PV work and is given by the formula w=−PΔV, where w is the work, P is the external pressure, and ΔV is the change in volume. If the volume change and pressure are in liters and atmospheres respectively, then the work will have units of liter-atmospheres, which can be converted to joules using the conversion factor 1 L⋅atm=101.3 J. Work can also be expressed as force multiplied by distance: w=F×d, where w is the work in joules, F is the force in newtons, and d is the distance in meters. Note that 1 N⋅m=1 J.

Workdone = -1.75 L.atm = -177.275 J

Explanation:

Given,

External pressure = 5.00 atm

Initial volume = V(initial) = 0.160 L

Final volume = V(final) = 0.510 L

The piston acts against the constant external pressure of 5.00 atmospheres. The volume expands to 0.510 L from 0.160 L

W = -PΔV

P = 5.00 atm

ΔV = V(final) - V(initial) = 0.510 - 0.160 = 0.35 L

W = - 5 × 0.35 = - 1.75 L.atm

This work can then be expressed in Joules

1 L.atm = 101.3 J

-1.75 L.atm = -1.75 × 101.3 = -177.275 J

Note that the workdone is negative because the system does work on the environment in this expansion procase that led to increase in volume.

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he made 11 calls in one day

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.