A cyclist and his bicycle have a combined mass of 88 kg and a combined weight of 862.4 N. The cyclist accelerates at 1.2 m/s. After 2 seconds he reaches a speed
of 2.4 m/s. What is his momentum at this point?

O A. 211.2 kgm/s
O B. 36.7 kgm/s
OC. 1 05.6 kgm/s
OD. 359.3 kgm/s

Explain vector addition, triangle method and parallelogram method

Suppose that two tanks, 1 and 2, each with a large opening at the top, contain different liquids. a small hole is made in the side of each tank at the same depth 1.57 m below the liquid surface, but the hole in tank 2 has 2.49 times the cross-sectional area of the hole in tank 1. (a) what is the ratio ρ1/ρ2 of the densities of the liquids if the mass flow rate is the same for the two holes? (b) what is the ratio rv1/rv2 of the volume flow rates from the two tanks? (c) at one instant, the liquid in tank 1 is 14.9 cm above the hole. if the tanks are to have equal volume flow rates, what height above the hole must the liquid in tank 2 be just then?

An ionic compound can conduct electricity when a it is dissolved in water b its crystals are ground into powder c it is in solid form d it is heated to just below its melting point