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Q. To water the yard you use a hose with a radius of 3.50 cm. Water flows from the hose with a speed of 1.10 m/s. If you in part block the end of the hose so the effective radius is now 0.55-cm, with what speed does water spray from the hose?

Q. An object weighs 311-N in the air. When tied to a string, connected to a balance, and immersed in water, it weighs 231-N. When it is immersed in oil, it weighs 262-N. Find the density of the object. Find the density of the oil.

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