At what temperature the kelvin scale will be double of Fahrenheit scale?

Never.

Explanation:

32F is 0C, is 273k. 0F is 255k. Since Fahrenheit degrees are smaller than Celsius or kelvin, the Fahrenheit numbers will go up faster than kelvin numbers will. Below 0°F it would make no sense, since a negative number cannot be twice a positive number. Using mathematics you can show that the lines would cross somewhere below 0k, but that temperature does not exist

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

-reverse card

this could be newton#'s law of cooling. the cooling curve is exponential