False because bases turn red litmus paper to blue and acids turn blue litmus paper red
Answer:
0 m/s^2
Explanation:
Acceleration is the change in velocity / time
=> In this case there isn't any change in velocity
=> It is = to 0.
1: a system is a collection of two or more things/objects. but if you want to use a tennis ball for an example it would be considered an object but at an atomic level we could say it is a system. why? because, it is made up of millions of atoms and each and every atom could be considered an object
2: phone systems, ecological systems, space systems
3: the internal energy of the system can be understood by examining the simplest possible system. example: an ideal gas
4: electricity- by an electrical current.
Your answer is 1). electrons
Use this helpful link!
https://quizlet.com/3445187/physical-science-flash-cards/
Answer: m = 5 kg
Explanation: To solve for the mass of the object we will use the formula of Potential energy
PE = mgh. Derive for mass, so the formula will be
m= PE / gh
m = 147 J / 9.8 m/s² ( 3 m )
= 5 kg
