The process that uses a half-life in its computation is

A. radioactive dating.

B. intrusion

C. adaption

What does the force diagram look like for a book at rest on a desk?

A (n) is a group of organs that work together to perform a common function.

What is the energy of a photon emitted with a wavelength of 571 nm?

What two properties of a star are graphed on a Hertzsprung-Russell diagram?

Theo was doing research to support the claim that exercise increases heart and lung health. He had 50 people do a rigorous exercise program. Each week, for six months, he tested their heart and respiratory rate.

A sound from a source has an intensity of 270 db when it is 1 m from the source. what is the intensity of the sound when it is 3 m from the source?

What experimental term is it when a ruler is dropped to the floor?

Where is most of the energy from incoming waves focused? A. spit B. headland C. underwater D. barrier beach

Exoplanets (planets outside our solar system) are an active area of modern research. Suppose you read an article stating that there is a newly discovered planetary system with three planets.

A car with a mass 1200 kg accelerates at 1.89 m/s2. What is the total force exerted by the car on the road (answer in N to two decimal places) ?