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): « 1 [2] 3 4 5 6 » ... 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

C) VETTORI

01-04-2009 08:38
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

14) Dati i vettori A=2i+2j e B=2i-4j, calcolare il vettore risultante R (modulo e angolo rispetto all'asse x), e disegnare i 3 vettori.



n.b: per questioni di formato, non posso segnare la notazione vettoriale, ma sapete bene che A,B ed R hanno sopra la freccia o sotto la lineetta, essendo vettori, così come i e j hanno sopra il cappuccio, essendo versori. Vale per tutti gli esercizi da qui in poi.

01-04-2009 08:40
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

15) Tre vettori a,b,c hanno componenti cartesiane ignote, ma moduli noti (a=3m, b=4, c=10m).

Sapendo che c forma un angolo di -60° con l'asse x, che b ne forma uno di 30 con l'asse delle x ed a un angolo nullo con l'asse delle x, trovare le componenti cartesiane dei 3 vettori e poi trovare il vettore somma dei 3.

Si noti che i 3 vettori partono dall'origine.

01-04-2009 08:45
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

16) Calcolare il prodotto scalare tra a=(1,1,1) e b=(1,0,1)

01-04-2009 08:46
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

17) Si calcoli il prodotto vettoriale c=axb sapendo che a=(1,1,1) e b=2,0,1)

01-04-2009 08:46
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

18) Si determini il vettore spostamento da A(1,1) a B(4,2). (Sono punti!!!!).
Se il corpo è soggetto allo spostamento S e ad una F=2i+2j, quanto vale il modulo della forza?
Ed il lavoro compiuto dalla forza?
E' possibile che una forza F' con direzione diversa da F compia lo stesso lavoro pur essendo minore in modulo?
Quanto vale la F' con modulo minore in assoluto, se esiste? Che direzione e verso ha?



[S=3,16m; F=2,83N; L=8j; sì; F'=2,53N]

01-04-2009 08:51
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

19) Dati i vettori A=(2,4,3) e B=(1,1,1) si calcolino: somma, differenza, prodotto scalare, prodotto vettoriale, modulo del vettore somma, modulo del vettore prodotto vettoriale, angolo tra i 2.

01-04-2009 08:52
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

20) Supponiamo di avere tre aste lunghe 4,5,6 metri. Possono essre unite solo a 90°. Quale sarà la disposizione per avere spostamento massimo tra l'inizio della prima asta e la fine dell'ultima? (Non sono necessariamente in ordine da sin a des)

01-04-2009 08:54
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

21) Un orologio ha la lancetta dei secondi lunga 2cm.
Quanto vale il modulo della velocità della punta della lancetta in km/h? E del centro dell'orologio?
Alle ore 14h53'00'', quanto vale v? Ed alle 17h31'15''?
Quanto varia v tra le 14h30'00'' e 15'' dopo?
Quanto vale l'accelerazione media tra le 14h30'00'' e 15'' dopo?

Disegnate tutte le v come vettori.


[vpunta=7,56*10^-3km/h; vcentro=0km/h;v=0,21cm/s;v=0,21cm/s cambiano le componenti, non il modulo;deltav=0cm/s; amedia=0,01979cm/s^2]

Last edited by Gun on 06-04-2009 at 14:16

01-04-2009 09:01
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

22) Un aereo vola descrivendo una circonferenza lunga 15km, con v=150km/h costante.
Quanto vale la differenza di velocità in un quarto di giro? Ed in mezzo giro?


[deltav=58,6m/s;deltav=83,3m/s]

01-04-2009 09:03
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

23) Un uomo esce dicasa e percorre 4 isolati verso EST, 3 verso NORD, 3 verso EST, 6 verso SUD, 3 verso OVEST, 3 verso SUD,2 verso EST, 2 verso SUD, 8 verso OVEST, 2 verso EST.
L'uomo sembra confuso, ma a noi non importa. Quanto si è spostato vettorialmente rispetto alla sua casa?


[s=-2j]

01-04-2009 09:05
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

D) CINEMATICA UNI-DIMENSIONALE

01-04-2009 09:05
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

continuo oggi pomeriggio..

01-04-2009 09:13
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

24) J. lascia cadere un sasso in direzione verticale da una finestra di un edificio a 100m di altezza.
Dopo quanti secondi tocca terra?
Se sulla traiettoria del sasso c'è un uomo, a terra, di 1,80m, dopo quanto viene colpito dal sasso?
E se ce n'è uno di 1,70 (ehm..)?
Quali considerazioni potete fare sugli uomini alti? (LOL)







[t=4,52s; t(1,80)=4,476s;t(1,70)=4,4777s)]

Last edited by Gun on 06-04-2009 at 14:19

01-04-2009 14:09
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

25) Se lancio in aria una palla con velocità iniziale = 72 m/s, che altezza raggiunge?
Entro quanto tempo devo togliermi dalla verticale perchè non mi cada in testa?



[264,3m;14,7s]

01-04-2009 14:11
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 15:40.    Post New Thread    Post A Reply
Pages (31): « 1 [2] 3 4 5 6 » ... 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 0.153 seconds (56.79% PHP - 43.21% MySQL) con 24 query.