Physics questions abc.

A liquid Is owing through a horizontal pipe whose radius ls 0.0294 m. The pipe bends straight upward through a height of 8.60 m and Joins another horizontal pipe whose radius is 0.0415 in. What volume ow rate will keep the pressures in the two horizontal pipes the same? '1': "'\"_l 2h Number I Units V A hollow cubical box is 0.572 m on an edge. This box is oating in a lake with 11'3 of its height beneath the surface. The walls of the box have a negligible thickness. Water is poured into the box. What is the depth of the water in the box at the instant the box begins to sink? Empty box Partially filled box Number l Units v A glass bottle of soda is sealed with a screw cap. The absolute pressure of the carbon dioxide in side the bottle is 1.50 x 105 Pa. Assuming that the top and bottom surfaces of the cap each have an area of 3.60 x 10" m2. obtain the magnitude of the force that the screw thread exerts on the cap in order to keep it on the bottle. The air pressure outside the bottle Is one atmosphere. Number I ' Units V