If the half - life of a sample of a radioactive substance is 30 seconds, how much would be left after 60 seconds?

What is the scientific name given to potato

A football player pushes against another player trying to block him from moving any farther down the field. Which term best describes this example? milar you would want to mention that

A 59 g arrow is shot straight up into the air with a speed of 25 m/s. It reaches a maximum height of 30.8878 m. Find the initial kinetic energy. The acceleration of gravity is 9.8 m/s 2. Answer in units of J.

All science-related careers involve working in a laboratory True Or False

A tennis ball travels the length of the court in 24 m in. 5 seconds find its average speed

Which theorist proposed that kohlberg's theory has a strong male bias

According to the kinetic theory of gases, the kinetic energy of molecules is proportional to which factor? A. Concentration in moles/liters B. temperature in kelvin

A large container of water is sitting on a balance. The weight of the container plus the water is 10 newtons. An object the weight of 7 newtons hanging from a forcemeter is lowered towards the surface of the water.

Which of the following could you do to increase the strength of an electromagnet?

A car accelerates from 13 m s to 25 m s in 6.0 s. what was its acceleration? how far did it travel in this time? assume constant acceleration.