Answer:
B) The mass of the reactants equals the mass of the products.
Explanation:
In any balanced chemical reaction, it is known by default that the mass of the products and reactants must always be the same.
This is according to the law of conservation of mass.
- Every chemical reactions obey the law of conservation of mass.
- The law states that "In every chemical reaction, matter is neither created nor destroyed but changed from one form to another".
- In essence, there is no mass loss in a chemical reaction.
- This law is usually shown by the balancing of chemical species on both sides of the equation.
The student's responses should explain that both Wilhelm Wundt and John Watson will disagree with Julie's claim of psychology not being a science.
Moreover,the student's answers should typically in a way acknowledge Wilhelm Wundt use of experimental method and also acknowledge the emphasis John Watson made on observable behaviours.
Answer:
A) 2
Explanation:
Given;
magnetic field of the coil, B = 1.6 T
frequency of the coil, f = 75 Hz
maximum emf developed in the coil, E = 56.9 V
area of the coil, A = 0.15 m x 0.25 m = 0.0375 m²
The maximum emf in the coil is given by;
E = NBAω
Where;
N is the number of turns
ω is the angular velocity = 2πf = 2 x 3.142 x 75 = 471.3 rad/s
N = E / BAω
N = 56.9 / (1.6 x 0.0375 x 471.3)
N = 2 turns
Therefore, the value of N is 2
A) 2