Answer:
A) Golgi apparatus
Explanation:
B) v a c u o l e (C) m i t o c h o n d r i a ( E) cell wall
Answer:
A. NaF and MgS
Explanation:
The reaction equation is given as:
Na₂S + MgF₂ → 2NaF + MgS
The product of this reaction is NaF and MgS.
In a double displacement reaction there is an actual exchange of partners to form new compounds. This reaction takes place between ionic compounds.
The driving force for the reaction is:
- formation of an insoluble precipitate
- formation of water or any other non-ionizing compound
- liberation of a gaseous product.
Answer:
Part A: Q = 0.075C
Part B: E = 187.5J
Part C: I = 50A
Part D: ΔQ 1.53C
Explanation:
Part A
Q = C×V
Given
C = 15μF = 15×10‐⁶ F, V = 5kV = 5000V
Q = 15×10‐⁶× 5000 = 0.075C
Part B
Energy = E = 1/2 ×CV² = 1/2 × 15×10‐⁶ × 5000² = 187.5J
Part C
Given R = 100Ω
V = IR, I = V/R = 5000/100 = 50A
Part D
I = ΔQ/Δt
Given Δt= 90ms = 90×10-³s, I = 17A
ΔQ = I × Δt = 17×90×10-³ = 1.53 C
Answer:
Explanation:
charge, q = 2e = 2 x 1.6 x 10^-19 C = 3.2 x 10^-19 C
mass, m = 4 u = 4 x 1.661 x 10^-27 kg = 6.644 x 10^-27 kg
Radius, r = 4.5 cm = 0.045 m
Magnetic field, B = 1.20 T
(a) Let the speed is v.
v = 2.6 x 10^6 m/s
(b) Let T be the period of revolution
T = 1.09 x 10^-7 s
(c) The formula for the kinetic energy is
K = 2.25 x 10^-14 J
(d) Let the potential difference is V.
K = qV
V = 70312.5 V
