## RS485 7 Pin to USB, Is it possible?

I have a Pump with RS485 via 7 Pins, and also have a convertor with 5 Inputs, Is it possible to connect together and plug to PC via USB?

As comment We can tell on 7 wires:

• Black = E-C ground
• Yellow = E-C enabled
• Red = Start-Stop
• Brown = 485 Interface A
• White = 485 Interface B
• Blue = 0-5 and 0-10 Volts and 4-20 mA Input
• Green = Direction

## Discrete: possible number of ways of arranging odd numbers in odd position.

How many 7-digit naturals can be formed by catenating all of 1, 2, 2, 3, 3, 3, 4 if the odd naturals in this list must always occupy the odd positions?
the order be like for example 1, _, 3, _, 3, _, 3 where the odd numbers are in the odd positions. I know we have to use combinations. Is it correct?

## Question: Is it possible to do student teaching at an online school?

I’m currently in a teachers prep program and it requires me to complete a 12-week clinical experience as a student teacher at a school of my choice.

With all the school shootings that have been happening, I’m honestly regretting my decision to become a teacher and am afraid to step into a classroom anymore. I can’t find any information regarding my question, but I was wondering if anyone here knows if it’s possible to do student teaching at an online school?

P.S. When my program is over, I will be seeking employment at an online school and will only go in a real classroom if it’s the only job opportunity I get until I can find a new career path.

## Is it possible to reparent child records?

Let me give you an outline of what I’m dealing with.

Parent records have an inactive/active value (picklist), some parent records share an external data value; SAP_Document_Number. I want to re-parent the child records of inactive parents to the active parent that shares the same SAP_Document_Number as the inactive parents records. IE there’s five inactive records that have the SAP_Document_Number of 5678123 there’s also a record listed as active that has an SAP_Document_Number of 5678123. I want those five inactive records to have all of their child records re-parented to the active record.

How they’re assigned is through a massive mess of apex triggers/handlers. So i’d rather do this using process automation —> to flow if possible. But I’ve yet to see examples online of anyone attempting something similar…my googlefu has failed. If someone has seen something similar please share it with me.

## Is it possible to obtain someone’s private IP through IP logging?

Let’s say Alice sends Bob a link through email, social media etc. The link logs Bob’s IP if Bob clicks the link.

If I’m correct, the IP Alice gets is Bob’s public/ISP IP address. Is it possible for Alice to obtain Bob’s private/client IP with only a link, or does Alice have to do more than that to obtain Bob’s private IP (Evil twin for example).

I also assume that this all becomes obsolete if Bob uses a VPN to mask his identity.

## Is it actually possible to obtain someones private IP through IP logging

Let’s say User A sends User B a link through email, social media etc. that logs User Bs IP if User B clicks the link. Now if I’m correct, the IP User A gets is User Bs public/ISP IP address. Is it possible for User A to obtain User Bs private/client IP with only a link, or does User A have to do more than that to obtain User Bs private IP(Evil twin for example). I also assume that this all becomes obsolete if User B uses VPN to mask his identity.

## Is it possible to view the contents of a debian package? [duplicate]

• How do I get a list of installed files from a package?

I want to see the contents of a debian package, especially if the package is properly cleaning up whatever it installs.

I want to also see how it goes about installing the software, what directories it creates, symbolic links etc.

## Question: Is it possible to watch netflix on a Mac 2010?

my mac is MacBook pro mid 2010 macOS High Sierra version 10.13.6
when i try to click play on anything on netflix i get redirected to the help page where it tells me i need silverlight or HTML5 player… i downloaded silverlight twice but its still not working. i know that 2010 macs don’t support this or whatever but there has to be a way around it right?

if anyone has any info on how i can watch netflix on my mac 2010 please help!

## Is it possible to build a secure PRG from two functions one of them being a PRG?

Having two deterministic functions $$G_1, G_2 : left{0,1right}^lambda rightarrow left{0,1right}^{lambda+l}$$, at least one of which is a secure PRG.

Being $$alpha$$ a constant, is it possible to build a secure PRG $$G’ : left{0,1right}^{alpha*lambda} rightarrow left{0,1right}^{alpha*(lambda+l)}$$ using $$G_1$$ and $$G_2$$?

My intuition is that it can’t be done, but I don’t know how to prove it.