Dsy Network www | forum | my | didattica | howto | wiki | el goog | stats | blog | dona | rappresentanti
Homepage
 Register   Calendar   Members  Faq   Search  Logout 
.dsy:it. : Powered by vBulletin version 2.3.1 .dsy:it. > Didattica > Corsi A - F > Fisica generale > Esercizi Thread Rating: 1 votes, 5.00 average.
Pages (31): « First ... « 16 17 18 19 [20] 21 22 23 24 » ... Last »   Last Thread   Next Thread
Author
Thread    Expand all | Contract all    Post New Thread    Post A Reply
Collapse
Gun
.grande:maestro.

User info:
Registered: Mar 2009
Posts: 573 (0.09 al dì)
Location:
Corso: Post-doc fellow researcher
Anno:
Time Online: 1 Day, 10:40:54 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

173) Si veda la figura. Quadrato di lato 2m, cariche di 2uC, trovare il campo elettrico nei punti di mezzo dei lati del quadrato e nel centro del quadrato.

10-06-2009 15:28
Click Here to See the Profile for Gun Click here to Send Gun a Private Message Find more posts by Gun Add Gun to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
Gun
.grande:maestro.

User info:
Registered: Mar 2009
Posts: 573 (0.09 al dì)
Location:
Corso: Post-doc fellow researcher
Anno:
Time Online: 1 Day, 10:40:54 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

Originally posted by darkshadow
ops scusa non ho seguito il tuo tutorato!!


domanda!!!! che qualcuno ha già fatto precedentemente....

ci daresti qualche suggerimento sul 2 compitino??



ds


dobbiamo ancora prepararlo

10-06-2009 15:29
Click Here to See the Profile for Gun Click here to Send Gun a Private Message Find more posts by Gun Add Gun to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
Gun
.grande:maestro.

User info:
Registered: Mar 2009
Posts: 573 (0.09 al dì)
Location:
Corso: Post-doc fellow researcher
Anno:
Time Online: 1 Day, 10:40:54 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

174) Si veda la figura. Quadrato di lato 5m, cariche di 10uC in modulo , trovare il campo elettrico nel centro del quadrato, con direzione e verso.

10-06-2009 15:30
Click Here to See the Profile for Gun Click here to Send Gun a Private Message Find more posts by Gun Add Gun to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
Gun
.grande:maestro.

User info:
Registered: Mar 2009
Posts: 573 (0.09 al dì)
Location:
Corso: Post-doc fellow researcher
Anno:
Time Online: 1 Day, 10:40:54 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

175) Si veda la figura. Quadrato di lato 50cm, q1=7,5nC e q2=-18,6nC , trovare il potenziale in B.
Se pongo in B una q3=1,5nC in B, quanto vale la Fcoulomb in direzione BD che q3 sente?

10-06-2009 15:33
Click Here to See the Profile for Gun Click here to Send Gun a Private Message Find more posts by Gun Add Gun to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
Gun
.grande:maestro.

User info:
Registered: Mar 2009
Posts: 573 (0.09 al dì)
Location:
Corso: Post-doc fellow researcher
Anno:
Time Online: 1 Day, 10:40:54 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

176) Quanto lavoro devo compiere per avvicinare una q1=7nC ad una q2=14nC da una distanza di 40cm ad una di 25cm?

10-06-2009 15:34
Click Here to See the Profile for Gun Click here to Send Gun a Private Message Find more posts by Gun Add Gun to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
Gun
.grande:maestro.

User info:
Registered: Mar 2009
Posts: 573 (0.09 al dì)
Location:
Corso: Post-doc fellow researcher
Anno:
Time Online: 1 Day, 10:40:54 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

177) Si veda la figura. Sapendo che a= 12cm e q1=0,5nC e q2=-03nC e q3=0,4nC.... se sposto q3 in modo che disti 10cm da q1 e 8cm da q2, che lavoro devo compiere?

10-06-2009 15:35
Click Here to See the Profile for Gun Click here to Send Gun a Private Message Find more posts by Gun Add Gun to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
Gun
.grande:maestro.

User info:
Registered: Mar 2009
Posts: 573 (0.09 al dì)
Location:
Corso: Post-doc fellow researcher
Anno:
Time Online: 1 Day, 10:40:54 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

178) In un tubo catodico un elettrone inizialmente fermo viene accelerato grazie ad una deltaV=5KV. Quanto vale la sua DeltaU? Quanto vale la velocità dell'elettrone dopo l'accelerazione impostagli?


[DeltaU=-8*10^-16J; vfin=4,2*10^7 m/s]

10-06-2009 15:39
Click Here to See the Profile for Gun Click here to Send Gun a Private Message Find more posts by Gun Add Gun to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
Gun
.grande:maestro.

User info:
Registered: Mar 2009
Posts: 573 (0.09 al dì)
Location:
Corso: Post-doc fellow researcher
Anno:
Time Online: 1 Day, 10:40:54 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

179) Un elettrone entra in un condensatore piano da sinistra con velocità di entrata orizzontale di 10^7m/s. Il condensatore ha il piatto superiore tenuto a Vd=10V, quello inferiore è messo a terra. La distanza tra le armature è di 1cm, la lunghezza delle armature (i piatti) è di 4cm.
Di quanto deflette durante il percorso tra le armature? Che traiettoria ha? Riesce ad uscire?

(Cercatevi massa e carica dell'elettrone, vi torneranno utili...)


[deflette di circa 1,41mm; parabolica: dimostratelo; sì]

10-06-2009 15:44
Click Here to See the Profile for Gun Click here to Send Gun a Private Message Find more posts by Gun Add Gun to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
Gun
.grande:maestro.

User info:
Registered: Mar 2009
Posts: 573 (0.09 al dì)
Location:
Corso: Post-doc fellow researcher
Anno:
Time Online: 1 Day, 10:40:54 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

180) Una q=2mC e m=2g entra in un condensatore. Quanto deve valere E causato dal condensatore perchè il moto sia rettilineo uniforme?



[E=-9,8V/m lungo asse y]

10-06-2009 15:47
Click Here to See the Profile for Gun Click here to Send Gun a Private Message Find more posts by Gun Add Gun to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
Gun
.grande:maestro.

User info:
Registered: Mar 2009
Posts: 573 (0.09 al dì)
Location:
Corso: Post-doc fellow researcher
Anno:
Time Online: 1 Day, 10:40:54 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

181) Ad una piccola sfera è fornita una carica q1=20uC ed ad una seconda sfera a 10cm è fornita una q2=-5uC.
Descrivere l'interazione tra le sfere. Se vengono poste a contatto e poi allontanate di nuovo a 10cm, quanto varrà la forza tra loro?

[F12=-90N; F12=50,6N repulsiva]

10-06-2009 15:50
Click Here to See the Profile for Gun Click here to Send Gun a Private Message Find more posts by Gun Add Gun to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
Gun
.grande:maestro.

User info:
Registered: Mar 2009
Posts: 573 (0.09 al dì)
Location:
Corso: Post-doc fellow researcher
Anno:
Time Online: 1 Day, 10:40:54 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

182) Confrontare l'attrazione gravitazionale tra 2 protoni posti a 100nm con la repulsione Coumombiana tra loro.

(cercate massa e carica del protone)


[Fgrav=1,86*10^-10 N; Fcoul=2,3*10^4N ]

10-06-2009 15:53
Click Here to See the Profile for Gun Click here to Send Gun a Private Message Find more posts by Gun Add Gun to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
Gun
.grande:maestro.

User info:
Registered: Mar 2009
Posts: 573 (0.09 al dì)
Location:
Corso: Post-doc fellow researcher
Anno:
Time Online: 1 Day, 10:40:54 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

183) Si veda la figura. Quanto vale E nei punti A, B e C con q1=0,4nC, q2=-q1?
Si indichino anche direzione e verso nei vari casi.


[in modulo valgono E(A)=130N/C; E(B)=82,7N/C; E(C)=14,57N/C]

10-06-2009 15:56
Click Here to See the Profile for Gun Click here to Send Gun a Private Message Find more posts by Gun Add Gun to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
Gun
.grande:maestro.

User info:
Registered: Mar 2009
Posts: 573 (0.09 al dì)
Location:
Corso: Post-doc fellow researcher
Anno:
Time Online: 1 Day, 10:40:54 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

184) Una particella carica resta ferma in un campo E diretto verso l'alto e creato dai piatti piani di un condensatore distanti 2cm. Quanto vale la deltaV tra i piani se la particella ha massa=4*10^-13Kg e q=2,4*10^-18C?


[DeltaV=-33KV]

10-06-2009 15:58
Click Here to See the Profile for Gun Click here to Send Gun a Private Message Find more posts by Gun Add Gun to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
Gun
.grande:maestro.

User info:
Registered: Mar 2009
Posts: 573 (0.09 al dì)
Location:
Corso: Post-doc fellow researcher
Anno:
Time Online: 1 Day, 10:40:54 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

185) Fra 2 piastre indefinite conduttrici piane e parallele poste a 10cm di distanza è applicata una deltaV=10kV. Un elettrone abbandona la piastra negativa e enello stesso istante un protone abbandona quella positiva. Si incontrano? Dove?


[a 9,995cm dalla piastra negativa]

10-06-2009 16:02
Click Here to See the Profile for Gun Click here to Send Gun a Private Message Find more posts by Gun Add Gun to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
Gun
.grande:maestro.

User info:
Registered: Mar 2009
Posts: 573 (0.09 al dì)
Location:
Corso: Post-doc fellow researcher
Anno:
Time Online: 1 Day, 10:40:54 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

186) Una lastra carica molto estesa crea un campo E uniforme di 8*10^5N/C. Un elettrone si trova inizialmente a 5cm dalla lastra. Se si sposta perpendicolarmente alla lastra fino a 25cm da questa, che variazione di energia potenziale subirà?
E se percorre una traiettoria obliqua?

E' meno difficile di quanto sembri :o)


[DeltaU=2,56*10^-14J in entrambi i casi: perchè?]

10-06-2009 16:06
Click Here to See the Profile for Gun Click here to Send Gun a Private Message Find more posts by Gun Add Gun to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
All times are GMT. The time now is 17:01.    Post New Thread    Post A Reply
Pages (31): « First ... « 16 17 18 19 [20] 21 22 23 24 » ... Last »   Last Thread   Next Thread
Show Printable Version | Email this Page | Subscribe to this Thread | Add to Bookmarks

Forum Jump:
Rate This Thread:

Forum Rules:
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is OFF
vB code is ON
Smilies are ON
[IMG] code is ON
 

Powered by: vBulletin v2.3.1 - Copyright ©2000 - 2002, Jelsoft Enterprises Limited
Mantained by dsy crew (email) | Collabora con noi | Segnalaci un bug | Archive | Regolamento | Licenze | Thanks | Syndacate
Pagina generata in 0.123 seconds (64.24% PHP - 35.76% MySQL) con 24 query.