Vector c has a magnitude 25.8 m and is in the direction of the negative y-axis. vectors a and b are at angles î± = 45.4â° and î² = 28.2â° up from the x-axis respectively. if the vector sum a b c = 0, what are the magnitudes of a and b?

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

Agraduated cylinder contains 63.0 ml of water. a piece of gold, which has a density of 19.3 g/ cm3, is added to the water and the volume goes up to 64.5 ml. calculate the mass in grams of the gold that was added to the water. explain how you got your answer.

Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.