Answer:29.68 m
Explanation :
Given
coefficient of friction \mu =0.44
Car initial speed=16 m/s
The maximum acceleration that book can bear without sliding is \mu g
using
Final velocity v=0
Answer:
8 + 2 n (second expression listed)
Explanation:
Since we don't know the number, we represent it with a letter (n).
Twice a number (two times that number) will therefore be: 2 n.
and the addition (sum) of 8 to such will lead to 8 + 2 n
The sum of 8 and twice a number is : 8 + 2 n
Answer:
The answer is 3.89x10^-8
Explanation:
The term vacant is used in crystallography to indicate a defect in a crystal. The crystals naturally have imperfections. A defect in which an atom is missing is called a vacancy defect, or Schottky's defect.
The temperature depends of the vacancy density, we have:
NV/N = A*e^-(ΔHv/R*T) = 1.1*e^(-100000/(8.314*701)) = 3.89x10^-8
Answer:
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Explanation:
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Answer:
R₈₀ = 146.43 Ω
Explanation:
The resistance of a resistor depends upon many factors. One of the main factors of the change in resistance of a resistor is the change in temperature. The formula for the resistance at a temperature other than 20°C is given as follows:
R₈₀ = R₀(1 + αΔT)
where,
R₈₀ = Resistance of wire at 80°C = ?
R₀ = Resistance of wire at 20° C = 104 Ω
α = Temperature coefficient of resistance for copper = 0.0068 °C⁻¹
ΔT = T₂ - T₁ = 80°C - 20°C = 60°C
Therefore,
R₈₀ = (104 Ω)[1 + (0.0068°C⁻¹)(60°C)]
<u>R₈₀ = 146.43 Ω</u>