The Second Law of Thermodynamics says which of the following? The energy leaving a closed system occurs spontaneously. It is impossible to make a cold object even cooler. Heat spontaneously alternates between hot objects and cool objects. The thermal energy of a cool object becomes cooler only if work is done on the object.

Points: 0 of 3 If a rock falls from a height of 33 meters on Earth, the height H (in meters) after x seconds is approximately H(x) = 33– 4.9x. (a) What is the height of the rock when x = 1.7 seconds? The height of the rock when x= 1.7 seconds is 18.839 meters. (Round to three decimal places as needed.) rce (b) When is the height of the rock 6 meters? Too The height of the rock is 6 meters when x |seconds. (Round to two decimal places as needed.) Clear all Get more help - Media - Tutoring Help me solve this

(akt) Answer all with the appropriate number of sigfigs  1) 82.992(0.3890) 2) 1.8120 × 109 + 1.93 × 103 3)  log(4.8720 × 109) 4) √(817.03)

Answer must be in standard form scientific notation with SI it’s that do not have prefixes. Also correct number of sig. fig.

Can someone please help answer question 1 through 3 using the data attached.

please help with the two boxes that i have circled with a green color based on my data! g=9.8 m/s is the accepted value and the equation g= 4 pie etc whatever that equation is, is the measured value to find the percentage error! and please then answer the three questions on the bottom

The answer is 30 but I don't know how it arrived at that answer! Please explain

Already posted this question... still confused. The person who answered it before doesnt explain how or where they got the some figures from.

whether it is in significant figures or not it is still wrong.

Jake’s height is measured to be 67 ???ℎ??; Enrique’s height is measured as 67.2 ???ℎ??. Can we use these two measurements to determine who is taller? Use your understanding of approximate numbers to explain why or why not.