PHY1507 ASSIGNMENT 01 SOLUTIONS 2026
ALL QUESTIONS ARE ANSWERED CLEARLY AND LOGICALLY ALL CALCULATIONS
AND STEPS ARE SHOWN
IF NEED ASSIST REACH OUR
, Question 1
Significant figures
(a) 0.000079
Leading zeros are not significant
→ Only 7 and 9 count
Answer: 2 significant figures
(b) 8.002 × 10⁵
All digits in 8.002 are significant
Answer: 4 significant figures
Question 2
Convert area from ft² to m²
Area in ft²
𝐴 = 100.0 × 150.0 = 15000 ft2
Conversion
1 ft = 0.3048 m ⇒ 1 ft2 = (0.3048)2 = 0.092903
𝐴 = 15000 × 0.092903 = 1393.545 m2
Final Answer:
𝟏. 𝟑𝟗 × 𝟏𝟎𝟑 m𝟐
ALL QUESTIONS ARE ANSWERED CLEARLY AND LOGICALLY ALL CALCULATIONS
AND STEPS ARE SHOWN
IF NEED ASSIST REACH OUR
, Question 1
Significant figures
(a) 0.000079
Leading zeros are not significant
→ Only 7 and 9 count
Answer: 2 significant figures
(b) 8.002 × 10⁵
All digits in 8.002 are significant
Answer: 4 significant figures
Question 2
Convert area from ft² to m²
Area in ft²
𝐴 = 100.0 × 150.0 = 15000 ft2
Conversion
1 ft = 0.3048 m ⇒ 1 ft2 = (0.3048)2 = 0.092903
𝐴 = 15000 × 0.092903 = 1393.545 m2
Final Answer:
𝟏. 𝟑𝟗 × 𝟏𝟎𝟑 m𝟐
