Answer:
ΔW = 1.168 × 10 ⁻²⁰ Joule
Explanation:
Given:
Change in Electric potential Δ V=Vout - Vin=0.073 V
Charge on sodium ions q = 1.6 ×10 ⁻¹⁹ C (+ve because of Missing one electron)
Work done by the electric fore when a sodium ions moves from outside to inside the cell is the change in the Electric potential energy Uout -Uin = ΔU
we have
ΔW =ΔU = q ΔV
ΔW = 1.6 ×10 ⁻¹⁹ C × 0.073 V
ΔW = 1.168 × 10 ⁻²⁰ Joule
The spring potential energy is 1.6 J
Explanation:
The elastic potential energy of a spring is given by the equation:

where
U is the potential energy
k is the spring constant
x is the compression/stretching of the spring
For the spring in this problem, we have:
x = 40 cm = 0.40 m is the stretching
k = 20 N/m is the spring constant
Substituting into the equation, we can find the spring potential energy:

#LearnwithBrainly
Answer:Thermal energy to electric energy to light energy
Answer:
Final velocity = 16 m/s
Total distane travelled = 390 m
Explanation:
We can use equation of motion to solve this:


Answer:
Wt= 0.73kJ, Wg=0.21kJ Wn= 0J
(B) Wf= 0.096kJ
Explanation:
See attachment below.