20. The change in isotopes over time due to the emission of radioactive particles is known as

A. absolute-age dating.

B. radioactive decay.

C. half-life.

D. radiometric dating.

Which of the three subatomic particles is responsible for determining the reactivity of an element?

A box of mass 15.1 kg with an initial velocity of 2.33 m/s slides down a plane, inclined at 23◦ with respect to the horizontal. The coefficient of kinetic friction is 0.56. The box stops after sliding a distance x.

While traveling along a highway a driver slows from 24 m/sec to 15 m/sec in 12 seconds. What is the automobile's acceleration?

An object is moving forward along the ground. In order to change the object's direction, a force needs to act on the object. This force could be A. a push or pull forward. B. a push or pull downward. C. a push or pull to the right. D. all of these

if you traveled the first 150km in 2.5 hours, and the second part of the trip, 100km in 1.4 hours. what w your average speed

StA A boat takes off from the dock at 2.5 m/s and speeds up at 4.2 m/s2 for 6.0 s. How far has the boat traveled? Round your answer to the nearest whole number.

In Part A, you determined that the heat added to the coffee is what you got. If it takes 4.2 J of energy to raise the temperature of 1.0 mL of coffee by 1.0∘C, then it should take twice as much energy to raise the temperature of 2.

The brightness of a star depends on what three factors?

What is most likely the relationship between Mendel's rules of genetics and Darwin's idea of biological evolution? Mendel's genetics states laws that are now part of the theory of biological evolution.

Why would it be a problem if your household appliances were connected in a series circuit