1. The inlet section of a vacuum cleaner is a rectangle, 1 in by 5 in. The blower is able to provide suction at 25 cubic feet per minute. (a) What is the average velocity at the inlet, in m/s

The average velocity at the inlet is 3.66 m/s.

Explanation:

Given that,

Width = 1 in

Length = 5 in

Flow rate = 25 feet³/m

We need to calculate the average velocity at the inlet

Using formula of velocity at the inlet

Where, Q = flow rate

A = area

Put the value into the formula

Hence, The average velocity at the inlet is 3.66 m/s.

wire in brush may conduct electricity from cell to drill and vice versa electrc shock possible

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )