What is the Density of a 150g irregularly shaped rock that displaces 25 ml of water, when it is dropped into a graduated cylinder?

6 g/mL

Explanation:

given:

mass = 150g

volume = displaced volume of water = 25 mL

recall that density = mass / volume

density = 150g / 25 mL = 6 g/mL

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods