Two identical batteries, each of emf 2 volt and internal resistance r=1 ohm by passing a current through it. The maximum power that can be developed across R=1 ohm using these batteries is [AFMC 1997]a) 3.2Wb) 8.2Wc) 2Wd) 4W

2watt

Explanation:

from P=V2/(r+R) Where v-emf,r-internal resistance,R-resistance

i believe the answer would be:

d. violin, clarinet, french horn, and tuba

the force represented by vector a is normal force. if the hockey puck is moving to the right, when it is hit with a significant force by the hockey stick the puck will move off in a different direction. correct on edge.