Answer: 0.02kg
Explanation:
The quantity of heat energy (Q) required to heat a substance depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)
Thus, Q = MCΦ
Since,
Q = 50 joules
Mass of iron sample = ? (let unknown value be Z)
C = 100 J/kg°C
Φ = 25°C
Then, Q = MCΦ
50J = Z x 100 J/kg°C x 25°C
50J = 2500J/kg x Z
Z = (50J/2500J/kg)
Z = 0.02kg
Thus, the mass of the iron sample is 0.02kg
Answer: Protons are positively charged particles
Explanation:
Answer:
There are three types of material as per the condition of charge flow
1) Conductor
2) Insulator
3) Semiconductor
1) Conductors
As we know that conductors are those which offer very small resistance to the flow of charge
Resistivity of the conductors are very small
2) Insulators
These type of materials offer large resistance to the flow of charges and it will not pass the current through it
So resistivity of the insulators are large as compared to conductors
Probably 90 j but im not sure I haven’t done any work like this in a while