A community for students.
Here's the question you clicked on:
 0 viewing

This Question is Closed

dan815
 one year ago
Best ResponseYou've already chosen the best response.0okay so to a Cathode in the CRT, would you normally connect DC current or AC current

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I need help with the entire paper..

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You'll Have To Download It.

dan815
 one year ago
Best ResponseYou've already chosen the best response.0okay look at question 1a

dan815
 one year ago
Best ResponseYou've already chosen the best response.0what happens when current is passed into the chatode

dan815
 one year ago
Best ResponseYou've already chosen the best response.0okay so when you complete the circuit

dan815
 one year ago
Best ResponseYou've already chosen the best response.0what will happen between the cathode and the anode

dan815
 one year ago
Best ResponseYou've already chosen the best response.0an electron is ejected from the cathode and goes to the anode

dan815
 one year ago
Best ResponseYou've already chosen the best response.0but you need a high enough voltage to displace an electron from the cathode

dan815
 one year ago
Best ResponseYou've already chosen the best response.0so when you are alternating the current during the lower voltages it will not displace an electron, this way you can control the time betweeen when your electrons are ejected, the frequency of your alternating current give you control on the frequency of ejection timings

dan815
 one year ago
Best ResponseYou've already chosen the best response.0an alternating current is a result of an alternating voltage and vice vera

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0beacuse high resistance right?

dan815
 one year ago
Best ResponseYou've already chosen the best response.0what do you think is the answer to b

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0High resistance in the wire?

dan815
 one year ago
Best ResponseYou've already chosen the best response.0You're going to have to be more clear if u want my help :)

dan815
 one year ago
Best ResponseYou've already chosen the best response.0I am not going to spoon feed you answers

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thick wires are used for lighting purposes because current is less?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0higher the resistance lesser the current right?

dan815
 one year ago
Best ResponseYou've already chosen the best response.0the question is actually saying thick wires are used for power circuits rather than lighting purpose

dan815
 one year ago
Best ResponseYou've already chosen the best response.0okay lets think about this a little, why does a lightbulb light up

dan815
 one year ago
Best ResponseYou've already chosen the best response.0what is that fillament in the lightbulb really

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i'm getting confused :(

dan815
 one year ago
Best ResponseYou've already chosen the best response.0the fillament in the lightbulb is basically just a resistor

dan815
 one year ago
Best ResponseYou've already chosen the best response.0its a very good resistor

dan815
 one year ago
Best ResponseYou've already chosen the best response.0what happens in a lightbulb is that you want lots of current to pass through the fillament, you want enough current to pass through that resistor to heat it up enough to make it emit enough photos, ie light

dan815
 one year ago
Best ResponseYou've already chosen the best response.0so you dont want needless current being lost to the wires

dan815
 one year ago
Best ResponseYou've already chosen the best response.0if u have thick wires your circult looks like this

dan815
 one year ago
Best ResponseYou've already chosen the best response.0your current will be the sum of the voltage/sum of all resistances

dan815
 one year ago
Best ResponseYou've already chosen the best response.0you just lowered your whole current needlessly

dan815
 one year ago
Best ResponseYou've already chosen the best response.0and there is less current through the fillament taking longer for it to heat up

dan815
 one year ago
Best ResponseYou've already chosen the best response.0now when it comes to power circuits

dan815
 one year ago
Best ResponseYou've already chosen the best response.0you dont want too much current going through resistors needlessly using up power in your circuit

dan815
 one year ago
Best ResponseYou've already chosen the best response.0also wearing down the life time of your circuit

dan815
 one year ago
Best ResponseYou've already chosen the best response.0so you get thicker wires to take the load off the components in power circuits

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0got it... q1c potential energy is mgh right?

dan815
 one year ago
Best ResponseYou've already chosen the best response.0make sure your units make sense

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i need to convert 200 gm to kg right?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0but they haven't given the h...

dan815
 one year ago
Best ResponseYou've already chosen the best response.0you know the acceleration due to earths gravity is 9.8m/s^2

dan815
 one year ago
Best ResponseYou've already chosen the best response.0this means you are losing a speed of 9.8 m/s every second

dan815
 one year ago
Best ResponseYou've already chosen the best response.0i will make that 10m/s per second to make it simpler for now, u calcuate the right answer

dan815
 one year ago
Best ResponseYou've already chosen the best response.0okay so suppose your accelerationg is 10m/s/s means u lose 10m/s of speed every second, you began with 20m/s so in 1 second you go from 20 m/s to 10m/s in another second you fo from 10 m/s to 0 m/s in 2 seconds your veloicty is 0m/s so your ball has come to a momentary stop up in the air, before it begins to head down

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0PE = mgh i can't see the value of h

dan815
 one year ago
Best ResponseYou've already chosen the best response.0you dont have to use mgh

dan815
 one year ago
Best ResponseYou've already chosen the best response.0you can use normal physics

dan815
 one year ago
Best ResponseYou've already chosen the best response.0okay if u wanna use mgh

dan815
 one year ago
Best ResponseYou've already chosen the best response.0you can use kinetic energy and potential energy

dan815
 one year ago
Best ResponseYou've already chosen the best response.0at the bottom there is only kinetic energy 1/2 mv^2 at the highest point there is only potential enrgy mgh

dan815
 one year ago
Best ResponseYou've already chosen the best response.01/2mv^2=mgh solve for h

dan815
 one year ago
Best ResponseYou've already chosen the best response.0okay, but i think you should really learn to solve it the other way too, energy theorem stuff comes after being able to solve the basic mechanics way

dan815
 one year ago
Best ResponseYou've already chosen the best response.0both are very important

dan815
 one year ago
Best ResponseYou've already chosen the best response.0yeah well you see from the equation the mass irrelevant

dan815
 one year ago
Best ResponseYou've already chosen the best response.0and it make sense, right if you were to drop any mass at some height, it will fall down with the same velocity

dan815
 one year ago
Best ResponseYou've already chosen the best response.0theoretically, but in reality, air resistance wont really allow that

dan815
 one year ago
Best ResponseYou've already chosen the best response.0anyways so 1/2mv^2=mgh mass cancels on both sides

dan815
 one year ago
Best ResponseYou've already chosen the best response.0approximately remember we are using 10 m/s^2 for gravity instead of 9.8m/s^2

dan815
 one year ago
Best ResponseYou've already chosen the best response.0if u have a calculator use the right one for your answer

dan815
 one year ago
Best ResponseYou've already chosen the best response.0okay so lets say some unsuspecting person happened to be touching the contact while he was pluggig it in

dan815
 one year ago
Best ResponseYou've already chosen the best response.0more current always wants to pass through the biggest voltage drop

dan815
 one year ago
Best ResponseYou've already chosen the best response.0if the ground is not in before your connection is made the current wants to pass through the person and u get the brunt of the current going through you

dan815
 one year ago
Best ResponseYou've already chosen the best response.0but if the prong is longer then that is always going to be connected inside before the other 2 go in

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0It's q related to sound

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0like wavelength and all

dan815
 one year ago
Best ResponseYou've already chosen the best response.0okay well they gave u the distance and time for that so v=d/t

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yeah i reduced it to 1/4 then got 0.25 as d ans

dan815
 one year ago
Best ResponseYou've already chosen the best response.0ok u can do the rest, just work on all of them and post your solutions

dan815
 one year ago
Best ResponseYou've already chosen the best response.0i have to do my assignment

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i'll try but....can u explain q2a to me?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0moment  force times distance

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the ans to q2a is 0.447 m right?

dan815
 one year ago
Best ResponseYou've already chosen the best response.0moment = force * distance 960Nm=430N * x

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0wait moment = force*distance so 960 = 430 times d 2.32?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i'll tag u if i need help

dan815
 one year ago
Best ResponseYou've already chosen the best response.0just use youtube or google man

dan815
 one year ago
Best ResponseYou've already chosen the best response.0thats how we all learnt when we got stuck
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.