Morris needs to build a new ramp outside of the front door of the office building. In order to do this, Morris needs wood to make the ramp, screws to hold it together, and electricity to run a saw to cut the wood. How will these materials be listed?

1- Woods

2-Electricity

3- Saw

4- Screws

Explanation:

First he will arrange for woods;

1- Woods

Then to cut these with electric saw, he will first acertain availability of elcetricity;

2-Electricity

Then he will cater for a saw;

3- Saw

Then he will join together the cut woods with screws;

4- Screws

the average speed is 24.57 km/hr

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27