Question

Ana was asked to investigate how well powdered juice dissolves in cold and in hot water.
8. If this is going to be a fair test, what variables should she control?
A. Amount of water and powdered juice drink in each cup, method of stirring, time when the solid is added to water, how long each solution is stirred.
B. Amount of water and powdered juice drink in each cup, method of stirring, how long each solution is stirred.
C. Amount of powdered Juice drink in each cup, method of stirring, time when the solid is added to water, how long each solution is stirred.
D. Amount of powdered juice and water in each cup.​

Answer 1

Answer:

wooden raft floats on a lake. The density of the water in the lake is 1000 kg / m.

The sides of the raft are 2.0 m long and the thickness of the raft is 0.20 m.

The mass of the raft is 700 kg.

How many barrels, each of mass 100 kg, could be placed on the raft before its surface sinks to

Explanation:

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