Most cars needed tires filled to 32.0 - 35.0 psi. Your tires are filled to 32.1 psi at the beginning of the month where the temperature is on average 12.5 Celsius. At the end of the month the average temperature has dropped to -3.1 Celsius. Are the tires still safe to drive on?
Energy transfer
The flow of energy from one region to another region is referred to as energy transfer. Since energy is quantitative; it must be transferred to a body or a material to work or to heat the system.
Molar Specific Heat
Heat capacity is the amount of heat energy absorbed or released by a chemical substance per the change in temperature of that substance. The change in heat is also called enthalpy. The SI unit of heat capacity is Joules per Kelvin, which is (J K-1)
Thermal Properties of Matter
Thermal energy is described as one of the form of heat energy which flows from one body of higher temperature to the other with the lower temperature when these two bodies are placed in contact to each other. Heat is described as the form of energy which is transferred between the two systems or in between the systems and their surrounding by the virtue of difference in temperature. Calorimetry is that branch of science which helps in measuring the changes which are taking place in the heat energy of a given body.
1. Most cars needed tires filled to 32.0 - 35.0 psi. Your tires are filled to 32.1 psi at the beginning of the month where the temperature is on average 12.5 Celsius. At the end of the month the average temperature has dropped to -3.1 Celsius. Are the tires still safe to drive on?
2. How much pressure would a 120.0 lb person put on a platform if all their weight was concentrated on the heel of their shoe (area of 2.5 cm2)? An elephant that weights 12,000 lbs, assuming all their weight is placed on one foot and the diameter of their foot is 50cm (again, assume a perfectly circular foot print); how much pressure would the elephant put that platform? Report pressures in pounds per square inch.
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