An object at rest begins to rotate with a constant angular acceleration. if this object rotates through an angle θ in time t, through what angle did it rotate in the time ½t?

a. 4θ
b. ¼θ
c. ½θ
d. 2θ
e. θ

What best describes a sonar wave? transverse and electromagnetic transverse and mechanical longitudinal and electromagnetic longitudinal and mechanical

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

Which of these statements best explains how the hydrosphere interacts with the atmosphere to affect global climate? mountains block rain clouds and cause changes in global rainfall and evaporation. humans burn fossil fuels to produce greenhouse gases which cause global warming. humans cut down trees which affects the amount of oxygen in different parts of the globe. greenhouse gases, like carbon dioxide, dissolve in oceans and prevent global warming.