The element carbon has 3 naturally occurring isotopes. About 99% of carbon isotopes are C-12, about 1% are C-13, and a tiny amount are C-14. What is the average atomic mass of carbon atoms?

A) 11.01 amu

B. 12.01 amu

C. 13.01 amu

D. 14.01 amu

Which statement describes the relationship between the rate of reaction and the temperature?

Convert 110mi/h=mi/day

Which of these statements about ionising radiation are true: a) Ionising radiation can transfer enough energy to break molecules apart. b) Theta radiation is a type of ionising radiation. c) Unstable atoms can emit three types of ionising radiation.

A shopper in a supermarket pushes a cart with a force of 35 N directed at an angle of 25 degrees downward from the horizontal. Find the work done by the shopper on the cart as the shopper moves along a 50 m length of aisle.

Two cars are traveling in the same direction and with the same speed along a straight highway. Does either driver hear a different frequency from the other car's horn than they would if the cars were stationary

A tree is standing in the middle of a meadow. As you watch, the wind begins to blow and the tree bends. Which statement best explains how you could tell that a net force was acting on the tree? OA) The tree had momentum.

A 5.1 kg black bear cub weighs 49.98 N. The cub is carried by its mother up into the safety of a white pine tree.

Which location is associated with persistent upwelling of cold water to the ocean surface?

What type of electromagnetic radiation is associated with the peaks in this spectrum chem 237?

Why is it necessary to eliminate absolutely all invasive fire ant colonies to eradicate the invasive population? a. Every colony has a major impact on native flora and fauna. b. Because the last colony found is the one housing the invasion's queen.