Answer: a) 18670 W b) 25 hp
Explanation:
a)
Average power,
P = W/t
W= 0.5 MVf^2 - 0.5 MVo^2
Therefore P =( (0.5 x 112 x 34.5^2 ) - (0.5 x 112 x 0 ) ) / 3.57
P = 1.87 x 10^4 W
b)
Power in units of horsepower is
P = 1.87 x 10^4 / 745.7 = 25hp
Answer:
When deformed, it returns to its original shape
Explanation:
- A spring is elastic.
- Elasticity is the property of a material to regain its shape after having been deformed.
- It means that when the force is doubled, the amount of deformation in it gets doubled.
- Hence, the correct option is (b) " When deformed, it returns to its original shape".
Answer:
Electric field = 8.6364 × 10⁶ V/m
Explanation:
Given that:
The Voltage across the cell membrane = 76.0 mV
Also, 1 mV = 0.001 V
So, Voltage = 0.076 V
Given the thickness of the membrane = 8.80 nm
Also, 1 nm = 10⁻⁹ m
So, Thickness = 8.80 × 10⁻⁹ m
The expression for electric field is shown below as:
![Electric\ Field=\frac {Voltage}{Thickness}=\frac{0.076}{8.80\times 10^{-9}}\ V/m](https://tex.z-dn.net/?f=Electric%5C%20Field%3D%5Cfrac%20%7BVoltage%7D%7BThickness%7D%3D%5Cfrac%7B0.076%7D%7B8.80%5Ctimes%2010%5E%7B-9%7D%7D%5C%20V%2Fm)
Electric field = 8.6364 × 10⁶ V/m
temperature is the answer