Hòn đá có khối lượng M, được ném thẳng đứng với vận tốc V0, nó đạt đến độ cao cực đại là H. Hòn đá khối lượng 2M, được ném thẳng đứng với vận tốc 2V0, nó sẽ đạt đến độ cao cực đại
là:

Which branches of natural science include the study of an organism that lived 10 million years ago

Two rigid transformations are used to map δhjk to δlmn. the first is a translation of vertex h to vertex l. what is the second transformation? a reflection across the line containing hk a rotation about point h a reflection across the line containing hj a rotation about point k

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.