The __________ rating of fossil-fuel heating appliances is commonly used to evaluate the efficiency of the appliance. This rating represents the percentage of the energy in the fuel that __________.
What will be an ideal response?
Annual Fuel Utilization Efficiency (AFUE), actually becomes heat for the structure
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Ohms law allows the technician to understand the relationship between current, voltage, and resistance in an electrical circuit.
Answer the following statement true (T) or false (F)
According to Newton’s law of cooling, the time t needed for an object at an initial temperature 
to cool to a temperature T in an environment with ambient temperature 
is given by 
here k is a constant. Assume that for a certain type of container, k = 0.025 min–1. Let t be the number of minutes needed to cool the container to a temperature of 50°F. Assume that 
= 70.1 ± 0.2°F and 
= 35.7 ±
0.1°F. Estimate t, and find the uncertainty in the estimate.
According to Newton’s law of cooling, the time t needed for an object at an initial temperature to cool to a temperature T in an environment with ambient temperature
is given by
here k is a constant. Assume that for a certain type of container, k = 0.025 min–1. Let t be the number of minutes needed to cool the container to a temperature of 50°F. Assume that = 70.1 ± 0.2°F and = 35.7 ± 0.1°F. Estimate t, and find the uncertainty in the estimate.
It is important to keep the ground in the crawl space ____.
A. insulated B. moist C. wet D. dry
How can you determine if a plant needs repotting?
What will be an ideal response?