lick
|
  |
| Joined: 17 Mar 2008 |
| Total Posts: 4725 |
|
|
| 04 Nov 2015 07:27 PM |
1. A 1488 -kg car moves on a horizontal curved road. If the radius of the curve is 49 m and the coefficient of friction between the tires and road is 0.1, find the maximum speed the car can have so that it may not skid.
2. In the Bohr model of the H-like atom, the speed of the electron is 2.2*10^6 m/s. If the radius of the atom is 1x10^-10 m, find the centripetal acceleration of the electron. The mass of the H-like atom is 100 au. 1au=1.67x10^-27kg. Show your answer as a decimal with four digits after the decimal point.
tbh idek why im posting this here because i probably wont get any answers |
|
|
| Report Abuse |
|
|
| |
|
lick
|
  |
| Joined: 17 Mar 2008 |
| Total Posts: 4725 |
|
|
| 04 Nov 2015 07:28 PM |
| wrong and wrong but it allows for infinite tries so |
|
|
| Report Abuse |
|
|
wishic
|
  |
| Joined: 21 Feb 2013 |
| Total Posts: 705 |
|
|
| 04 Nov 2015 07:35 PM |
1) .67
2) 0.36
you said its wrong for the other ones, which leads me to think you already have the answer? why even ask.
Original Post |
|
|
| Report Abuse |
|
|
lick
|
  |
| Joined: 17 Mar 2008 |
| Total Posts: 4725 |
|
|
| 04 Nov 2015 07:37 PM |
no i do not have the answer and both of your answers are wrong this is homework and it is not online to just google
idk what you are talking about when i said its wrong for the other ones i was talking to discourger |
|
|
| Report Abuse |
|
|
|
| 04 Nov 2015 07:37 PM |
can someone explain to me what to do i wanna learn this xd shoot me a pm explaining this shiz |
|
|
| Report Abuse |
|
|
wishic
|
  |
| Joined: 21 Feb 2013 |
| Total Posts: 705 |
|
|
| 04 Nov 2015 07:38 PM |
How would you know if it's wrong if you don't know what it is?..
oh and thnx i guessed.
Original Post |
|
|
| Report Abuse |
|
|
lick
|
  |
| Joined: 17 Mar 2008 |
| Total Posts: 4725 |
|
|
| 04 Nov 2015 07:39 PM |
| but i attempted #2 and i thought the answer was 8.028*10^-4 or 4.24*10^22 but ive tried putting it in scientific notation and it didnt work. i also just tried putting in the decimal number and not the exponent but it still said it was wrong and tbh i just gave up on it |
|
|
| Report Abuse |
|
|
lick
|
  |
| Joined: 17 Mar 2008 |
| Total Posts: 4725 |
|
|
| 04 Nov 2015 07:40 PM |
| there is a button i press that says check and it automatically says if the answer i put in is wrong or right so i can screenshot it for you if you want |
|
|
| Report Abuse |
|
|
lick
|
  |
| Joined: 17 Mar 2008 |
| Total Posts: 4725 |
|
|
| 04 Nov 2015 08:15 PM |
wow i figured out the answer to #1
sqrroot(.1*48*9.8) = 6.9
i am not joking the answer was literally 6.9 m/s |
|
|
| Report Abuse |
|
|