An open tank has a vertical partition and on one side contains gasoline with a density rho = 580 kg/m3 at a depth of 4.4 m, as shown in fig. p2.99. a rectangular gate that is 4.4 m high and 2 m wide and hinged at one end is located in the partition. water is slowly added to the empty side of the tank. at what depth, h, will the gate start to open? multipart

The energy released by a chemical reaction can be measured using a calorimeter. when barium hydroxide octahydrate crystals are reacted with dry ammonium chloride inside of a coffee cup calorimeter, the temperature of the 18.00 g of water in the calorimeter decreases from 30.0°c to 8.0°c. the equation for calculating energy absorbed or released by a reaction is: where q is the energy released or absorbed, m is the mass of water in the calorimeter, cp is the specific heat of water, and δt is the observed temperature change. if the specific heat of liquid water is 4.19 j/g·°c, how much energy was absorbed by the reaction?

Use the right-hand rule for magnetic force to determine the charge on the moving particle. this is a charge.

What equation is used to calculate the weight of an object on a plant ?