Answer: The most likely identity of the substance is iron.
Explanation:
The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.
Q = Heat absorbed=
Joules
m= mass of substance = 11.9 g
c = specific heat capacity = ?
Initial temperature of the water = 
= 25.0°C
Final temperature of the water = 
= 45.0°CChange in temperature ,
Putting in the values, we get:
The specific heat of 0.45 is for iron and thus the substance is iron.
An image that cannot be obtained on a screen is called an Virtual Image.
Answer:
(a) τ=2.88 s, (b) q₀= 30.6μC and (c) t=1.434s
Explanation:
A RC circuit is an resistor(R)-capacitor(C) electric circuit.
(a) In a resistor-capacitor circuit, the time constant (τ) can be calculated by:
<em>where R: is the resistence and C: the capacitance of the capacitor</em>
(b) The maximum charge (q₀) is giving by:
<em>where ε: is the voltage across the capacitor</em>
(c) The time (t) that take the charge (q) to build up to 12 μC can be calculated from the next equation:
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Answer:
Explanation:
From the question we are told that:
Power 
Voltage 
USA-standard 
Applying A step down transformer
Generally the equation for a Transformer is mathematically given by
Therefore
She can use a turns ratio of 2
Answer:
Neural Engineering and Tissue Engineering
Explanation:
• BME is Biomedical Engineering. It has various topics such as Anantomy, Physiology, Neural Engineering and Tissue engineering, Medical mechanisation and others.
