Surgical masks are not designed for use as particulate respirators and do not provide as much respiratory protection as an N95 respirator. ... Most surgical masks do not effectively filter small particles from the air and do not prevent leakage around the edge of the mask when the user inhales.

3 0

3 years ago

I need help with welding class how hot do I have to get the flame before it reaches the point to melt metal together?

Nataliya [291]

Answer:

6,300 degrees Fahrenheit

Explanation:

Oxidizing Flame. Cast iron can be welded with an oxidizing flame. The oxidizing flame is produced by increasing the oxygen in the mixture, producing an oxygen-rich gas. It has a temperature between 6,000 and 6,300 degrees Fahrenheit.

3 0

3 years ago

Which is more effective in transmitting information about a bird, Brancusi’s Bird in Space or John Audubon’s Wild Turkey?

Agata [3.3K]

You can use both of them its more your choice

5 0

3 years ago

Read 2 more answers

1. Copy this on a sheet of paper. a. Write the note name for each note (C, D, E,...). b. Write the solfege for each note.​

1. Copy this on a sheet of paper. a. Write the note name for each note (C, D, E,...). b. Write the solfege for each note.