The following figure shows the top view of a compass next to a long straight wire. An arrow indicates the north pole of the compass. When a switch is closed, a current is established in the wire, and the compass needle initially rotates as indicated. Is the direction of the current in the wire into the page or out of the page? 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

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.