20 n force moving a box to 30 meters distance. how much work id done? if it takes 10 sec to do this work, how much power is used.

Work done = 600 J

Power used = 60 W

Explanation:

Given:

Force acting on the box is,

Displacement of the box is,

Time taken for the work,

Now, we know that, work is said to be done by a force only when there is displacement caused by the force in its direction.

Here, the force acting on the box causes a displacement of 30 m in its direction. So, work done is equal to the product of force and displacement caused.

Therefore, work done on the box is given as:

Therefore, the work done is 600 J.

Now, we know that, power is given as work done per unit time.

So, power used is given as:

Therefore, the power used is 60 W.

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.