Substance A has a density of 3000 kg/m3 and substance B has a density of 4000 kg/m3. In order to obtain 1200 kg of each of these substances, what does the volume of each need to be?

Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a battery? a. the current in the battery and in each resistor is the same b. the current the battery equals to the sum of the currents in the resistors c. the current in the battery is less than the current in either resistor d. the current in the battery equals to the product of the currents in the resistors

There are two-speed cameras, one in an are where the speed limit is 30 km/h and another where the speed limit is 50 km/h. in which will there be a smaller time interval between the photographs? explain your answer.

What causes the development of most clouds and precipitation in the atmosphere?