roseannerowe7 roseannerowe7

04-01-2023
Physics

contestada

A radioisotope has a half-life of 7.5 hours. How many half lives have occurred after 67.5 hours?

A. 7 half-lives
B. 8 half-lives
C. 9 half-lives
D. 10 half-lives

Respuesta :

Otras preguntas

Which strategy is developed to pull together the various activities and competencies of each department so that corporate and business unit performance improves

The neurobiological approach explains human behavior by focusing on I. brain structures. II. cultural influences. III. neurotransmitters.

What is the catalyst defined as

The most common budgeting period is

According to Immanuel Kant, the value of a good will lies in: how much it can contribute to society. how clever it is at finding the best means to its ends. the

Testing a hypothesis is called a(n) _____. control scientific law experiment variable

The equal areas law is Kepler's 2nd law of planetary motion. It states that _____. a planet's orbit sweeps out equal areas in equal periods of time a planet's o

Harriet traveled 1,249 meters by bicycle. Then she traveled 2,987 meters by boat and 66,245 meters by hot air balloon. How many meters did Harriet travel altoge

Self-esteem begins to develop in the early years of life. TRUE or FALSE

The cruise boat can carry up to 45 passengers. The company wants to know the minimum number of passengers needed per cruise to cover its costs. This number is

Q&A Education