How are casts formed by decaying organisms? O Organisms turn into rock over time.
O Organisms leave carbon residue on a rock.
O Organisms leave impressions in sediment that hardens into rock.
O Impressions left by organisms are filled in with sediment that hardens into rock.

Athermometer is removed from a room where the temperature is 70° f and is taken outside, where the air temperature is 10° f. after one-half minute the thermometer reads 60° f. what is the reading of the thermometer at t = 1 min? (round your answer to two decimal places.) ° f how long will it take for the thermometer to reach 30° f? (round your answer to two decimal places.)

The 5-kg cylinder is initially at rest when it is placed in contact with the wall b and the rotor at a. if the rotor always maintains a constant clockwise angular velocity v = 6 rad> s, determine the initial angular acceleration of the cylinder. the coefficient of kinetic friction at the contacting surfaces b and c is mk = 0.2.

The softest and hardest minerals are: softest hardest