B) B. is the point where it has maximum potential energy.
Explanation:
- This an example of projectile motion.
- In projectile motion, the path of an object is illustrated in the picture given. In the given picture, the minimum kinetic energy and the maximum potential energy is at B
- B is the point where the object, for example, the ball is reaching its point of minimum kinetic energy which means that after this point the object's downward motion starts.
- Hence, the transition from the upward motion to the downward motion is the point where it has the maximum potential energy.
<u>Answer:</u>
An example of a capital good is "the government will open another public school in the area".
<u>Explanation:</u>
A capital good or complicated products and systems or (CoPS) is a reliable commodity used in the manufacturing of goods and services. These are one of three kinds of consumer commodities, while the other two are property and labor.
The three are also commonly referred to as primary production factors.They are recorded on a company's balance sheet as assets, and can be depreciated over time. Capital goods instances include furniture, buildings, machinery, equipment and fixtures.
The correct answer Thomson's
Complete Question:
What volume of hydrogen will be produced at STP by the reaction 67.3 g of magnesium with excess water according to the following reaction?
Mg + 2H₂O --> Mg(OH)₂ + H₂
Answer:
62 L
Solution:
Step 1: Calculate Moles of Mg as;
Moles = Mass / M.Mass
Moles = 67.3 g / 24.30 g/mol
Moles = 2.76 moles of Mg
Step 2: <u>Calculate Moles of H₂ as;</u>
According to balance chemical equation,
1 mole of Mg produced = 1 mole of H₂
So,
2.76 moles of Mg will produce = X moles of H₂
Solving for X,
X = 2.76 mol × 1 mol / 1 mol
X = 2.76 mol
Step 3: <u>Calculating volume of H₂,</u>
1 mole of ideal H₂ occupies = 22.4 L Volume at STP
So,
2.76 moles of H₂ will occupy = X L of H₂ at STP
Solving for X,
X = 2.76 mol × 22.4 L / 1 mol
X = 61.82 L ≈ 62 L