Using the solubility curve, choose all of the statements that are correct. The solubility of NaCl is least affected by temperature you can completely dissolve 60 g of KBr in 100 g of water at 20 °C the solubility of KNO3 is the least affected by changes in temperature 100 g of KBr will dissolve completely in 100 g of water at 75 °C if you mix 120 g of NaClO3 in 100 g of water at 10 °C, approximately 30 g will not dissolve

Copper has free electrons per cubic meter. a 71.0-cm length of 12-gauge copper wire that is 2.05 mm in diameter carries 4.85 a of current. (a) how much time does it take for an electron to travel the length of the wire? (b) repeat part (a) for 6-gauge copper wire (diameter 4.12 mm) of the same length that carries the same current. (c) generally speaking, how does changing the diameter of a wire that carries a given amount of current affect the drift velocity of the electrons in the wire?

As part of your daily workout, you lie on your back and push with your feet against a platform attached to two stiff springs arranged side by side so that they are parallel to each other. when you push the platform, you compress the springs. you do an amount of work of 79.0 j when you compress the springs a distance of 0.230 m from their uncompressed length. (a) what magnitude of force must you apply to hold the platform in this position? (b)how much additional work must you do to move the platform a distance 0.230 m farther? (c) what maximum force must you apply to move the platform a distance 0.230 m farther?

Acar travels 40m in 8 seconds find the car speed