The diagram shows a beam lying on the ground. End Q is lifted from the ground by the force F. End P of the beam remains on the ground. 3.0 m 1.0m P Р G ground beam The length of the beam is 3.0m and its weight is 600 N. The centre of mass of the beam at G is 1.0 m from end P. What is the size of the force when it just raises end Q from the ground. ​

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

Asatellite component is in the shape of a cube with 10cm edges, has an evenly distributed mass of 2 kg and one bolt hole at each of four corners. if the maximum predicted random vibration environment is 10 grms, what bolt size would be a good choice for restraint? what other factors might drive bolt size besides force/stress?

Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m