[1] A. One ship was sailing north at 8 knots, another east at 10 knots. At 10:00 AM, the second crossed the course of the first where the first was at 8am. At what rate was the distance between the ships are charging at 9am.
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- why did you add instead of subtract in the cosine law? follow up question to: Kristopher entered Ms. Chang’s calculus class in a contest. The prize is a trip to a “secret” island. Guess what? We won! So the whole class is “off” to the “secret” island on an airplane. This airplane is on a heading 170 degrees, and is cruising at 250 km/hr. It is encountering a wind blowing from the south/west at 50 km/hr. a)Draw a vector diagram (free body or closed loop) b)Determine the aircraft’s ground velocity (magnitude and direction – standardbearing please!). Round final answers to 1 decimal place. c)If the flight took off about 5 hours, how far is this “secret” island from the airport?Part B Problems: Measurement and Uncertainty; Significant Figures; Units, Standards, and the SI System; Converting Units 3. In the Bible, Noah is instructed to build an ark 300 cubits long, 50.0 cubits wide, and 30.0 cubits high. Historical records indicate a cubit is equal to half a yard. (a) What would be the diımensions of the ark in meters? (b) What would be the ark's volume in cubic meter? To approximate, assume that the ark is to be rectangular.One mole of Gold (Au) atom has a mass of 197 g. We know that the density of gold is 19.30 g/cm3 in room temperature. Using those numbers, answer the following questions: a) What is the mass of a single gold atom in kg? b) Assume that gold atoms sit in a perfect cubic crystal structure. Estimate the distance between two gold atoms in meters. c) If we have a gold cube of 6 cm on each side, how many atoms can we fit along the edge of each side of the cube? d) What would be the mass, in kilograms, of the gold cube we discussed in part (c) (measuring 6 cm on each side)?
- answer a b c only.. no other parts needed......... only typed answers.......Create a C++ program for managing a grocery store's Inventory system. The Inventory information is stored in a text file named "grocery inventory.txt." Each line in the file represents a grocery item with the following format: "SKU, Name, Category, Quantity Price" The program should allow the user to add new items, update the quantity of existing Items, and display the total value of the inventory. Ensure that the program checks for the existence of "grocery inventory.txt" and handles cases where the file is empty. Utilize functions to organize your code effectively, with comments explaining each function's purpose. You can use data structures like arrays or structs to store and manipulate inventory data. The program should output the updated inventory information to a file named "updated_grocery_Inventory.txt." Ex: grocery Inventory.txt: 101, Apples, Fruits, 50, 0.75 102, Bread, Bakery, 20, 2.50 103, Milk, Dairy, 30, 3.99 (updated grocery inventory.txt after adding 100 packs of Eggs…Hi I need help here The answer is only 3 significant digit Thank you
- Please answer question and just send me the paper solutions asap dont type the answer question and just ex2 answer all the parts please faster and use the equation from picture please asapStill think that unit conversion isn't important? Here is a widely publicized, true story about how failing to convert units resulted in a huge loss. In 1998, the Mars Climate Orbiter probe crashed into the surface of Mars, instead of entering orbit. The resulting inguiry revealed that NASA navigators had been making minor course corrections in SI units, whereas the software written by the probe's makers implicitly used British units. In the United States, most scientists use Sl units, whereas most engineers use the British, or Imperial, system of units. (Interestingly, British units are not used in Britain.) For these two groups to be able to communicate to one another, unit conversions are necessary. The unit of force in the SI system is the newton (N), which is defined in terms of basic Sl units as 1 N=1 kg · m/s?. The unit of force in the British system is the pound (lb), which is defined in terms of the slug (British unit of mass), foot (ft), and second (s) as 1 lb =1 slug ·…the average density of an atom is approximately 103 kg/m3. The nucleus of an atom has a radius about 10-5 times that of the entire atom, and contains nearly all the mass of the atom. What is the approximate density, in kilograms per cubic meter, of a nucleus?