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I can't figure out this physics problem for the life of me.
Asked by Merkava120, Jan 15, 2019 01:17 PM in Physics
I've attempted several solutions to the following problem and I always arrive at roughly -49C, but when I submitted that answer it was marked wrong....
How to find the molarity of Fe(NO3)3 in a stock solution
Asked by iciclegem, Jan 15, 2019 09:57 PM in Chemistry
A stock solution will be prepared by mixing the following chemicals together:3.0 mL of 0.00200 M KSCN10.0 mL of 0.200 M Fe(NO3)317.0 mL of 0.5 M...
Sucrose to dextrose proportions
Asked by wispa, Jan 14, 2019 03:36 PM in Chemistry
Hello. The yeast I'm using require 10 kilos of sugar but I use dextrose and 10 kilos is enough to kill it. What is the dextrose equivalent of 10...
Cell reproduction
Asked by ssahin87, Jan 5, 2019 03:13 AM in Biology
There are two types of reproduction. One of them is sexual reproduction which is observed in . The other type of reproduction is .. reproduction...
What number should be added to x squared minus 6 x to make it a perfect square?
Asked by Mario0001, Dec 22, 2018 02:20 AM in Mathematics
What number should be added to
Adding Heat to food
Asked by tmoynier, Dec 21, 2018 05:02 PM in Chemistry
So, I am trying to use Pure Caspsaicin to add a little heat to some food. Now the pure Caspsaicin has come in crystal form they are Lipophilic so I...
Hi.Today is my Test of conversions calculations. Kindly help me as my professor is so
Asked by sanaakhaliq, Dec 12, 2018 05:50 PM in Chemistry
Hi.Today is my Test of conversions calculations. Kindly help me as my professor is so harsh on me and I suck at calculations.Also explain all the...
Whom can I send my work on Physics?
Asked by Adesh Mishra, Dec 11, 2018 01:02 AM in Physics
I'm a 17 years old Indian, I want someone whom I can send my work on Physics, currently I'm in class 12th which means after passing this class I will...
A physics question
Asked by sohaamir3, Dec 7, 2018 10:35 AM in Physics
Based on the photo below, Calculate T1/T2 (Acceleration does not change, T: Tension)...
At 200 C, Kc is 1.6E-10 for N2O+NO2<->3NO. 350 mL of
Asked by centimeters13, Dec 4, 2018 01:34 AM in Chemistry
At 200 C, Kc is 1.6E-10 for N2O+NO2<->3NO. 350 mL of NO measured at 797torr and 25 C is placed into a 3.00L container, what will be the molarity of...
Working out my holiday/vacation entitlement
Asked by ennogs, Nov 18, 2018 08:01 PM in Mathematics
I have been tearing my hair out over this lol. I am trying to work my holiday (vacation) entitlement out. Can somebody please tell me if I...
Multiple power supplies
Asked by colbtech, Nov 15, 2018 01:25 AM in Electrical Engineering
Morning all, Been a while. I have a greenhouse project in the near future that requires a weatherstation in the packing shed controlling several...
Building a circuit
Asked by RickSmitChina, Nov 14, 2018 12:25 AM in Electrical Engineering
Why does it every diagram of a circuit choose that the current comes from the POSITIVE side? I understand that they choose to believe that the...
Transistor secrets
Asked by RickSmitChina, Nov 14, 2018 12:18 AM in Electrical Engineering
Is there a reason why there is a need to connect a powerful resistor to the base pin of a transistor, other than the base has a lower maximum current...
How do complex waves and harmonics work?
Asked by Allen Farber, Nov 11, 2018 12:25 PM in Physics
So from what I understand, a sine wave is a sound wave that vibrates at only one frequency. So a sine wave of 220hz vibrates at just 220 cycles per...
Asked by trauden, Nov 8, 2018 04:05 AM in Mathematics
Dear all members, Anyone knows this non-linear differential equation related to what mechanic system. x ̈+x ̇^3+x=0 (or dx/dt=z, dz/dt=-x-x^3)...
Asked by Alebsleks1, Oct 19, 2018 03:53 AM in Physics
When an electron enters a uniform electric field at an acute angle, its trajectory is
Need Math Help!
Asked by SwaegSyub7, Oct 16, 2018 10:19 PM in Mathematics
You want to start a summer business to earn money. What will you do? You have to consider how much money you can afford to invest in this business,...
Asked by collinsdarkwah, Oct 15, 2018 05:58 PM in Physics
A train at station P accelerates uniformly from rest until it attains a speed of 100 km/h. It then continues at the speed for some time and...
Building Bylaws
Asked by rash1997, Oct 13, 2018 02:15 PM in Civil Engineering
Define the following pertaining to building bylaws: 1. Margin 2. Open Plot 3. Min area of a room

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