3m 3m A 6m

Your answer is partially correct. Crossing a River. You and your team come to a slow flowing river that you need to cross. The nearest bridge is 20 miles to the north, too dangerous and too far to trek with your group. You explore the area down river and discover an abandoned shed with a stash of 55-gallon drums (all empty and weighing 35.0 lb each) and a stack of 10-foot planks: you will build a raft. The six members of your team have a combined weight of 1015 pounds (assuming everyone was truthful). You also have a four-wheeler (all-terrain vehicle), which weighs 460 lb, and other gear, which adds another 325 lb. Your simple raft design is as follows: platform of planks with barrels strapped to the bottom. You estimate that the planks weigh about 49.0 lb each, and you will need 20 of them to make a platform that can accommodate everything for the one-way trip. You measure the dimensions of the cylindrical drums and find they have diameter D = 23.0 inches and height h = 34.5 inches…

The surface tension of water is 72 mJ/m2. What is the energy required to change a spherical drop of water with a diameter of 2 mm to two smaller spherical drops of equal size

1

If 31.0 g of milk at a temperature of 4.05°C is added to a 260-g cup of coffee at a temperature 91.0°C, what is the final temperature of the mixture? Assume coffee has a specific heat of 4.19 ✕ 103 J/(kg · K) and milk has a specific heat of 3.93 ✕ 103 J/(kg · K).

Determine the magnitude and direction of the force F=(690 lb)i +(300 lb)j – (580 lb)k.

4. An experiment is conducted with a Joule apparatus. The hanging objects descend through a distance of 3.75 m each time. After 30.0 descents, a total of 6.40 kJ has been added to the water. What is the total mass of the hanging objects? in KG

Vector A has x and y components of -8.80 cm and 13.0 cm, respectively; vector B has x and y components of 13.8 cm and -6.80 cm, respectively. If A - B + 3℃ = 0, what are the components of C? X = cm y = cm

8.85 x 10-12 C2 Useful Constants: k = 9.00 x 10° Nm2 C2 %3D €0 = Nm2 e = 1.6 x 10-19C %3D me = -31 kg = 9.11 × 10 31 kg

52. Assuming the +x-axis is horizontal to the right for the vectors given in the following figure, use the analytical method to find the following resultants: (a) 11.671+ 8.991. (b) 9.011-6.401. (c) D + F. (d) 5.651 + 1.013. (e) D-F. (0) A+ 2F. (9) C-2D + 3F, and (h) A - 4D + 2F. 1. B = 5.0 B 53° A = 10.0 30° A D C = 12.0 8 60° ILL 10 30° F = 20.0