2. Жасанды серік Жер бетінен 600 км биіктікте дөңгелек орбита бойымен айналуы үшін қандай жылдамды алуы керек? Оның айналу периоды қандай? [3]

Describe the law of conservation of momentum as it pertains to a real-life scenario, and explain how it applies. Begin by identifying the real-life scenario. You may start your response with: - A real-life scenario pertaining to conservation of momentum is ... - In this scenario, the law of conservation of energy applies because . . .

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.

27. Two trains, 1 and 2 , have an equal mass of \( m=5,000 \mathrm{~kg} \) each. Train 1 is traveling with a speed \( n=15 \mathrm{~m} / \mathrm{s} \) before striking train 2 , which was at rest. If the two trains lock together as the result of the collision. What is their common speed immediately after collision?

EXERCISES It is known that the flow of fluid \( (\mathrm{Q} \) rate) is a fluid volume passing per unit time, based on the pressure gradient \( (\mathrm{P} / \ell) \) where \( (p) \) is the pressure between the ends of the tube flow stream, \( (\ell) \) is the length of pipe flow, also depends on the viscosity of the liquid \( (\eta) \) and the radius of the tube \( (r) \), by using the concept of compatibility between the units and dimensions theory derive a mathematical formula for flow rate depending on the variables mentioned above.

Laurel is calculating the power she generated while running the 800 m race. She exerted a force of 200 N to complete the race in 150 seconds. (A) How much work did she do? (B) How much power didsshe exert? Be sure to give units, include the equations used, and show your work. You may begin your responses with: - The work she did is . . . because . . . .