Answer:
B) Wattage
Explanation:
Looking at the question's statement, it is self explanatory.
"James needs a power supply that will have enough power to run the new card."
The above statement clearly says that James needs to look for the Wattage (which simply means power, because it is the unit of power).
Form factor will show only the shape and general physical layout of the power supply.
Dual Voltage option will give only the option of supplying two different voltages at a time and nothing about the power that James needs.
80 Plus Gold rating will show that efficiency of the PSU (power supply Unit) is up to 87% at 100% load.
Taking into account the definition of calorimetry, the mass of the coffee is 253.33 g.
<h3>Calorimetry</h3>
Calorimetry is the measurement and calculation of the amounts of heat exchanged by a body or a system.
Sensible heat is defined as the amount of heat that a body absorbs or releases without any changes in its physical state (phase change).
So, the equation that allows to calculate heat exchanges is:
Q = c× m× ΔT
where:
- Q is the heat exchanged by a body of mass m.
- c is the specific heat sudstance.
- ΔT is the temperature variation.
<h3>Mass of coffee</h3>
In this case, you know:
- Q= 190 calories
- c= 1
- m= ?
- ΔT= 0.75 C
Replacing in the equation that allows to calculate heat exchanges is:
190 cal = 1 × m× 0.75 C
Solving:
m= 190 cal÷ (1 × 0.75 C)
<u><em>m=253.33 g</em></u>
Finally, the mass of the coffee is 253.33 g.
Learn more about calorimetry:
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The average speed can be calculated by dividing the total distance traveled by the total time taken.
<h3>What is the average speed?</h3>
The average speed of a vehicle can be calculated by finding the ratio of the total distance traveled and the total time taken on the journey.
Average speed = total distance covered/total time taken
Since there are markers that indicate every 100-meter journey. The total number of such marker posts encountered multiplied by 100 will give an estimate of the total distance traveled in meters.
A record of the time taken on the journey will give the total time taken.
Hence, average speed = total number of marker posts x 100/total time.
The unit will be in m/s.
More on average speed can be found here: brainly.com/question/12322912
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Answer:
(2.5,0)
Explanation:
The particle can be described by the following equations:
For R = 2.5, ω = 2 and t = 0:
The center of the circle would be at point (2.5,0)