Complete question:
A ball with a weight of 0.5 kg is sitting on a shelf that is 3 meters high. What is the gravitational potential energy of the ball ?
Help me! This is 8th grade sci btw
Answer:
the gravitational potential energy of the ball is is 14.7 J.
Explanation:
mass of the ball, m = 0.5 kg
height above the ground on which the ball is sitting, h = 3 m
The gravitational potential energy of the ball is calculated as follows;
P.E = mgh
P.E = 0.5 x 9.8 x 3
P.E = 14.7 J
Therefore, the gravitational potential energy of the ball is is 14.7 J.
Correct Answer: Mass of ore that contains 200 g of Ti is
617.28 g.
Reason:
Given: Ore contains 32.4% Ti by mass.
It implies that, 100 g of ore ≡ 32.4 g of Ti
Therefore, x g of ore ≡ 200 g of Ti
Thus, x =
Hence, mass of ore that contains 200 g of Ti is
617.28 g.
Number of moles of the gas, Temperature and the volume of the gas.
Explanation:
The periodic table presents an orderly arrangement of elements based on their atomic numbers.
The modern periodic table is established on the periodic law which states that "the properties of elements are a periodic function of their atomic number".
On the table, elements having the same number of electrons in the outermost shell of their atoms are placed over one another in the vertical column. Each vertical column is known as group and the horizontal column is known as period.
Learn more:
Periodic table brainly.com/question/2014634
Regions of the table brainly.com/question/2014634
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