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Q1. Sam, who's mass is 71.0, takes off down a 45.0 high, 11.0 slopes on his jet-powered skis. The skis have the thrust of 180. Sam's speed at the bottom is 40.0.

Q2. A geologist finds that moon rock whose mass is 7.160 kg has an apparent mass of 5.206 kg when submerged in water. What is the density of rock?

Q3. When the plunger is pushed, contents of the syringe are forced throughout a hollow needle (also of circular cross-If a 4.0 N force is applied to plunger and diameters of the plunger and the needle are 1.20 cm and 2.50 mm, correspondingly, what force is essential to prevent fluid flow at the needle?

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  • Category:- Physics
  • Reference No.:- M9160447

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