sandra lives in a country located in the northern hemisphere she makes a sundial by erecting a pole vertically in her garden the given figure shows the aerial view of the pole and the shadow it casts at 6:00 am on a summer day which of these figures shows the shadow of the same pole at 6:00 pm on the same day

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.

The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.

What is the freezing point of radiator fluid that is 50% antifreeze by mass? kf for water is 1.86 ∘c/m.