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What is true about the code and output below? import pandas as pd dict = { “country”:[“Brazil”, “Russia”, “India”, “China”, “South Africa”], “capital”:[“Brasilia”, “Moscow”, “New Delhi”, “Beijing”, “Pretoria”], “area”:[8.516, 17.10, 3.286, 9.597, 1.221], “population”:[200.4, 143.5, 1252, 1357, 52.98] } brics = pd.DataFrame(dict) print(brics) Output: area capital country population 0 8.516 Brasilia Brazil 200.40 1 17.100 Moscow Russia 143.50 2 3.286 New Delhi India 1252.00 3 9.597 Beijing China 1357.00 4 1.221 Pretoria South Africa 52.98

You plan to create a smaller dataset containing only the day and time columns for further analysis. Which syntax correctly subsets both columns into a new DataFrame?

Problem 5 Find the arc length of the curve on the given interval. Round answer to the thousandths place. 

Problem 4 Find all points (if any) of vertical and horizontal tangency to the curve and write answers as ordered pairs. 

Suppose a 1-Gbps point-to-point link is being set up between the Earth and a new lunar colony. The distance from the moon to the Earth is approximately 385,000 km, and data travels over the link at the speed of light—3 × 108 m/s. ( You must show the calculation steps to get full points) (a) Calculate the minimum RTT for the link.           (b) A camera on the lunar base takes pictures of the Earth and saves them in digital format to disk. Suppose Mission Control on Earth wishes to download the most current image, which is 25 MB (B stands for Byte ). What is the minimum amount of time that will elapse between when the request for the data goes out, and the transfer is finished?  

Which events may trigger TCP Fast Retransmit?

Nicotine, cocaine, caffeine are all

a substance capable of altering attention, consciousness, judgment, perception, mood, self-control is

episodic long term memory is based on

nicotine is a stimulant