3. An iron cube (p = 7860 kg/m?) having sides of 1 cm is submerged in open fresh water (p = 1000
kg/m?) with its top surface at a depth of 2.5 m. Considering that its top surface is held horizontal
with respect to the water surface, determine the difference in pressure between the top and
bottom surfaces of the cube?

To protect all four receptacles on a branch circuit that surrounds a swimming pool, you would install which of the following configurations? a. gfci feed-through receptacle at the end of the load's circuit b. gfci-terminated receptacle at the beginning of the load's circuit c. gfci feed-through receptacle at the beginning of the load's circuit and the other receptacles connected to the load side of that receptacle d. gfci-terminated receptacle at each end of the load's circuit

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .