Answer:
a ) 3 v
b ) 400 mA
Explanation:
In case of transformer there is relation between no of turns in primary and secondary coils and voltage input and output as follows
V₁ / V₂ = n₁ / n₂
Where V₁ and V₂ are input and output voltage and n₁ and n₂ are no of turns of primary and secondary coils.
Here V₁ = 1.5 v , V₂ = ? , n₁ = 10 , n₂ = 20
Put the values in the equation above
1.5 / V₂ = 10 / 20
V₂ = 3 v.
Similarly formula for current is as follows
I₁ / I₂ = n₂ / n₁
Whereas I₁ and I₂ are current in primary and secondary coil
Put the values in the equation above
I₁ / 200 mA = 20 / 10
I₁ = 400 mA.
Answer: The correct answer is option b.
Explanation: We are given that the rocket is at rest initially final velocity is 445m/s.
The acceleration of the rocket is 
To calculate the distance of rocket, we use third equation of motion, which is:
where, v = final velocity = 445m/s
u = initial velocity = 0m/s
a = acceleration = 
s = distance = ? m
Putting values in above equation, we get:
Answer:
Las propiedades físicas, como la dureza y el punto de ebullición, y los cambios físicos, como la fusión o la congelación, no implican un cambio en la composición de la materia.
Explanation:Creo que es correcta
He should confront her about it and if after that point she continues report it to the chess team
