The efficiency can never be 100 because some of the work will be transferred into thermal energy. In turn, causing the percentage to decrease. This is basically the second law of thermodynamics.
Answer:
Air masses tend to move from west to east.
Answer:
The correct option is B. an alpha particle.
Explanation:
When ²³Na is bombarded with protons , ²⁰Ne and one alpha particle is released.
The reaction is as follows:
Therefore, an alpha particle and ²⁰Ne are released when ²³Na is bombarded with protons.
Rake bc it does not use anything no lever or anything
Answer:
Explanation:
Weight, W = 286 N
Tension in the left wire, T1 = 433 N
α = 12.7°
let the tension in the right wire is T2 and angle with the horizontal is β.
Make the components and maintain the equilibrium
(a)
Equilibrium of forces along x axis
.... (1)
Equilibrium of forces along y axis
.... (2)
Squarring equation (1) and (2) and then add
T2 = 463.5 N
(b) Divide equation (2) by (1)
β = 24.2°
(a) T2 be the tension in right wire
Use