(d) शून्य 5. एक हवाई जहाज उत्तर-पश्चिम दिशा में 80 किमी/घण्टा के वेग से
उड़ रहा है तथा वायु 60 किमी/घण्टा के वेग से उत्तर-पूर्व दिशा में
वह बह रही है। जहाज की वास्तविक गति होगी
(a) 20 किमी/घण्टा
(b) 40 किमी/घण्टा
(c) 100 किमी/घण्टा
(d) 140 किमी/घण्टा
Explain also​

Stars x and y are both bluish main sequence stars. star x has a higher absolute brightness than star y. how do the two stars compare? explain

Question 7 [2 marks] in the circuit below, the electromotive force generated by the battery is e = 6.0 v, and the resistances are r1 = r4 = 1.0 q, r2 = r3 =2.0 q. r. the power delivered by the battery to the circuit is closest to a. 6 w в. 12 w с. 15 w d. 18 w e. 20 w final exam autumn 2014 page 5 of 9 68037 physical modelling faculty of science [2 mark] question 8 with reference to question 7, the current through resistor r2 is closest to a. 1 a в. 2 а c. 3 a d. 4 a e. 6 a

Given the position vector of the particle r(t)=(t+1)i+(t^2−1)j+2t k, find the particle's velocity and acceleration vectors at t=1