Physics
What is the frequency of a light wave that has a wavelength of 0.0025m?
Physics
Jill screams and hears her echo 4.4 seconds later. How far from the canyon wall is she if the air temperature is 25 degree C?
Physics
Joe stands 150 m from the edge of a canyon wall. How long will it take him to hear his echo if the air temperature is 250 degree C?
programming
Design a class named Book that holds a stock number, author, title, price, and number of pages for a book. Include methods to set and get the values for each data field. Also include a displayInfo() method that displays each of the Book’s data fields with expl...
programming
pseudocode for // This application reads 10 numbers // and sorts them, and displays the three highest numbers
programming
// This application reads student typing test data // including number of errors on the test, and the number // of words typed per minute. Grades are assigned based // on the following table
programming
Create the logic for a program that prompts a user for three numbers and stores them in an array. Pass the array to a method that reverses the order of the numbers. Display the reversed numbers in the main program.
programming
The village of Ringwood conducted a census and created records that contain household data, including income. Ringwood has exactly 75 households. Write a program into which a village statistician can enter each of the 75 household income values, and determine the mean and medi...
Algebra
At a portrait studio, three 8- by 10-inch pictures plus two 5- by -inch pictures cost $52, and two 8- by 10-inch pictures plus 5- by 7-inch pictures cost $40. This situation can represented by the system of equations below, where x is the cost, in dollars, of each 8- by 10-inc...
Tides
What astronomical bodies are most responsible for the tides on earth?
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