Its density is 700 kg>m . What volume of lead must be fastened underneath it to sink the wood in calm water so that its top is just even with the water level? What is the mass of this volume of lead?

If steel is more dense that lake water, why can a boat float

Imagine you are standing in the antarctic during the southern hemisphere summer. the sky is clear and blue. there are no clouds in the sky. your shadow is cast on the icy ground. what is the color of the shadow?

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2