The path of a sledder is shown; upon descending the hill, the sledder ultimately glides up a ramp to a final resting position (at D). Frictional forces can be assumed to be negligible. Givent mass = 34.0 kg ; Height at \( \mathrm{A}=7.0 \) meters, \( \$ \) peed at \( \mathrm{A}=6.4 \) \( \mathrm{~m} / \mathrm{s} \),

5) A liquid flows in a tube with a cross-sectional area of \( 0.0002 \mathrm{~m}^{2} \) at a speed of \( 4 \mathrm{~m} / \mathrm{s} \). Calculate: (a) The volume flow rate of the liquid. (b) The speed of flow if the radius of the tube is doubled.

Water flows through a tube of diameter 2 cm at an average speed of \( 3 \mathrm{~m} / \mathrm{s} \). The end of the tube is closed with a plug with ten holes, each with a radius of 1 mm , calculate the speed of the water flowing from each hole

Gasoline flows in a tube with a diameter of 2 cm at a speed of \( 5 \mathrm{~m} / \mathrm{s} \). Calculate: (a) The amount of gasoline flowing per minute. (b) The time required for a tank with a capacity of \( 20 \mathrm{~m}^{3} \) to be filled with gasoli (knowing that \( \pi=3.14 \) )

3.33 • Uma canoa tem velocidade de \( 0,40 \mathrm{~m} / \mathrm{s} \) a sudeste em relação à Terra. A canoa se desloca em um rio que escoa a \( 0,50 \mathrm{~m} / \mathrm{s} \) para leste em relação à Terra. Determine o módulo, a direção e o sentido da velocidade da canoa em relação ao rio.

A satellite in its parking orbit moves with a speed of \( 3 \mathrm{~km} \mathrm{~s}^{-1} \). Calculate the radius of its orbit. \[ \left[\mathrm{G}=6.67 \times 10^{-14} \mathrm{Nm}^{2} \mathrm{~kg}^{-2} \text {, mass of the earth, } \mathrm{M}_{\mathrm{e}}=5.97 \times 10^{27} \mathrm{~kg}\right] \]