Oxygen is needed for the reactions that cause artifacts to decay in the ocean. Some ancient shipwrecks have been well-preserved deep in the ocean.
Review the information in the data table. Which statement about the
relationship between rates of reaction and concentration of reactants is true?
Object
Location
Decay time
Average
concentration of
oxygen
Wooden ship
Deep ocean
Very low
1,000 years
Wooden rowboat Shallow beach
High
1 to 2 years
O A. Reactions are faster when there is a lower concentration of
reactants.

Anybody wanna ? (picture included? )

Immediately upon reaching its lowest point, a falling pendulum bob has its greatest amount of energy, which is the initial amount of potential energy. a. heat; less than b. heat; more than c. kinetic; less than d. kinetic; more than

To place a communications satellite into a geosynchronous orbit at an altitude of 22,240 mi above the surface of the earth, the satellite first is released from a space shuttle , which is in a circular orbit at an altitude of 185 mi, and then is propelled by an upper-stage booster to its final altitude. as the satellite passes through a, the booster's motor is fired to insert the satellite into an elliptic transfer orbit. the booster is again fired at b to insert the satellite into a geosynchronous orbit. knowing that the second firing increases the speed of the satellite by 4810ft/s, determine (a.) the speed of the satellite as it approaches b on the elliptic transfer orbit, (b.) the increase in speed resulting from the first firing at a.