A 12.0 m long conveyor belt, inclined at 30.0°, is used to transport bundles of newspapers from the mailroom up to the cargo bay to be loaded on to delivery trucks. Each newspaper has a mass of 1.0 kg, and there are 25 newspapers per bundle. Determine the power that the conveyor develops if it delivers 15 bundles per minute.

Power = 367.5 Watts

Step-by-step explanation:

Given:

Length of conveyor belt = 12.0 m

Conveyor inclination = 30.0°

Mass of each news paper = 1.0 kg

Each bundles = 25 news paper

Solution:

Mass of each bundle to transport m

Inclination of the conveyor belt h = (Length of the conveyor belt) (Sin(30.0°))

Using power formula.

Substitute all values in above equation.

Power = 367.5 Watts

Therefore, Conveyor must have 367.5 Watts to delivers 15 bundle per minute.

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m