- rocket science
- automotive research
- space research
Answer:
C) It reacts explosively with oxygen.
Explanation:
Physical properties are usually those that can be observed using our senses such as color, luster, freezing point, boiling point, melting point, density, hardness and odor.
What are the Chemical Properties of Hydrogen? They are the characteristics that determine how it will react with other substances or change from one substance to another.
Since this a position vs time graph, the velocity will be the slope of the line.
(5-3) / (3-0)
2/3 m/s
.6666 m/s
Answer:
(a) 1133J/m
(b) 5.714m²
Explanation:
(a) u = 1/2×εE²
εo = 8.85×10-¹² F/m
E = 0.8 × 2.0×10⁷V/m = 1.6×10⁷V/m
u = 1/2×8.85×10-¹² × (1.6×10⁷)²= 1132.8J/m
(b)
U = 1/2CV² = 1/2(Aεo/d)×V²
U = 1/2(Aεo/d)×V²
U = 200mJ = 200×10-³
d = V/E = 500/ (1.6×10⁷) =3.13×10-⁵m
200×10-³ = 0.5×A×8.85×10-¹²×500²/3.13×10-⁵
200×10-³ = 0.035A
A = 200×10-³/ 0.035 = 5.714m².
