Afamily of ducks is swimming in a pond at a speed of 3m/s when a gust of wind hits them. by the time they reach the other side of the lack, the ducks are moving at a speed of 7m/s. how long did it take for them to cross the lake if thet accerested at a rate of 1m/s^2

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?

Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air

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.