Answer:
Explanation:
In our previous articles, we observed the theoretical formulas of Ohm’s law, its calculations in the lab report, and experiment. Today you’ll learn the verification of theory vs experimental results on a 1 kΩ resistor.
The theoretical results are obtained from the formula of Ohm’s law: V = IR. The experimental verification is provided for a metal film 1 kΩ (±0.05%). We have used a high-quality resistor with negligible tolerance value so as to reduce the tolerance error.
The little problem in our calculations arises due to improper handling of multimeter probes. You can learn the complete method to perform the Ohm’s experiment here and can calculate the current values by using the Ohm’s law calculator.
Answer:
The required mass of ice is 12.5 kg.
Explanation:
Mass of hot tea, = 1.8 kg
Initial temperature of hot tea = 80°C = 353 K
Initial temperature of ice = 0.00°C = 273 K
Final temperature of mixture = 10°C = 283 K
Heat of fusion of ice, L = 334 kJ/kg
Specific heat capacity of tea, = Specific heat capacity of water = 4190 J/kg/K
Heat lost tea = Heat gained by ice
Δ = L + Δ
Δ = (L + Δ)
1.8 x 4190 x (353 - 283) = (334 + (4190 x (283 - 2730))
1.8 x 4190 x 70 = (334 + (4190 x 10))
527940 = 42234
=
= 12.5004
= 12.5 kg
The required mass of ice is 12.5 kg.
Answer:
The coefficient of static friction between your partner and the floor is 0.55
Explanation:
Given:
Mass Kg
Frictional force N
From the formula of frictional force,
Where coefficient of static friction,
Put the above values and find the coefficient of static friction.
Therefore, the coefficient of static friction between your partner and the floor is 0.55
<span>An isotope is a form of a
chemical element whose atomic nucleus contains a specific number of neutrons in
addition to the number of protons that distinctively defines the element. The
nuclei of most atoms have neutrons as well as protons.</span>