The cardiovascular system consists of a. the heart and coronary arteries. b. blood, blood vessels, the heart, lymph, lymph vessels, and lymphatic tissues. c. the heart, blood vessels, and lymph vessels. d. blood, blood vessels, and the heart.

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

What is the role of the water cycle in maintaining freshwater levels in lake and rivers?

Six pendulums of mass mand length las shown are released from rest at the same angle theta from vertical. rank the pendulums according to the numberof complete cycles of motion each pendulum goes through perminute. a. l= 1m m=2kg b. l= 4m m=1 kg c. l= 2 m m= 2 kg d. l= 1 m m= 4 kg e. l= 2 m m = 4 kg f. l= 4m m = 4kg