Which of the following statements about joints is true? a. fixed joints have the greatest range of motion. b. most joints are joined by cartilage or connective tissue. c. they are all very flexible. d. they occur where two or more bones join.

If a tank filled with water contains a block and the height of the water above point a within the block is 0.8 meter, what is the pressure at point a?

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.

An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )