A 69.0-kg man lies on his back on a bed of nails, with 1,202 of the nails in contact with his body. The end of each nail has area 1.15 x 10-6 m2. What average pressure is exerted by each nail on the man's body? Pa

9. A liquid is flowing through a horizontal pipe whose radius is 2.18 x 10-2 m. The pipe bends straight upward through a height of 10.6 m and joins another horizontal pipe whose radius is 4.36 x 10-2 m. What is the speed of the liquid in the lower horizontal pipe if the pressure in both horizontal pipes is the same? m/s MAR 27 888 5 T G 6 B tv MacBook Air H 8 N 8 DIE A F10 zoom oup by mi 04 M vauies or the puffer Am

A group of acrobats form a human tower, each standing on the shoulders of another acrobat. The acrobats have mass 62.9 kg, 77.9 kg, 67.3 kg, and 53.7 kg. The most massive acrobat is on the bottom. The bottom acrobat's shoes have a total surface area of 0.0011 m2 on their soles. What is the pressure (in n/m? exerted by the bottom acrobat on the floor?

A force of 120.0 N is applied to 2.000 cm diameter piston, which is in contact with a closed container of water (density of water = 1,000 kg/m3). A second piston, with a diameter of 25.00 cm and at the same height as the first piston, is also in contact with the water. What force does the water pressure exert on the second piston?   Multiple Choice   10,450 N.   8,450 N.   18,750 N.   9,150 N.   9,500 N.

1a) Calculate the mass of a solid gold rectangular bar that has dimensions lwh = 4.80 cm ✕ 14.0 cm ✕ 23.0 cm. (The density of gold is 19.3 ✕ 103 kg/m3.) kg = 1b) The four tires of an automobile are inflated to a gauge pressure of 2.1  105 Pa. Each tire has an area of 0.024 m2 in contact with the ground. Determine the weight of the automobile.  N =