A 20.0-kg lead mass rests on the bottom of a pool, (a) What is the volume of the lead? (b) What bouyant force acts on the lead? (c) Kind the lead's weight, (d) What is the normal force acting on the lead?

A U-tube open at both ends is partially filled with water (Figure (a)). Oil (p = 750 kg/m³) is then poured into the right arm and forms a column L = 4.53 cm high (Figure (b)). Shield Po Water Oil (a) Determine the difference h in the heights of the two liquid surfaces. (The density of water is 1.00 x 103 kg/m3.) cm (b) The right arm is then shielded from any air motion while air is blown across the top of the left arm until the surfaces of the two liquids are at the same height (Figure (c)). Determine the speed of the air being blown across the left arm. Assume the density of air is 1.29 kg/m. m/s

If a kitchen sink has a volume of 20 L. Water flows in the sink with a mass flow rate of 0.5 kg/s. If the drain is closed, how long, in seconds, does it take for the sink to fill up?  Density of water = 1000 kg/m3

A 14.0 kg copper mass rest on the bottom of a pool, What is the volume of the copper? (The density of copper is 8.92 ✕ 103 kg/m3).