C с
A car with mass 1372 kg, moving at 26 m/s,
strikes a(n) 2630 kg car at rest.
If the two cars stick together, with what
speed do they move?
1. 5.59706
2. 10.3342
w
3. 6.24855
4. 5. 10299
5. 6.60538
6. 8.91354
7. 5.24686
8. 7.31238
9. 1.83881
10. 12.8712
Answer in units of m/s.
СС
5

Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?