How does sound energy travel?

By sound circles
By sound drums
By sound lines
By sound waves

A jar contains only nickels, dimes and quarters. There is at least one of each type of coin in the jar. If the total value of the coins in the jar equals 60 cents, how many quarters are in the jar? How long did the first dynasty in Europe last? zia can make 12 batches of cookies in 6 hours. How long does it take her to make 2 batches of cookies? Show (visual representation) or explain (explanation using academic vocabulary) your reasoning. Atlantic Video, a small video rental store in Philadelphia, is open 24 hours a day, and-due to its proximity to a major business school-experiences customers arriving around the clock. A recent analysis done by the store manager indicates that there are 30 customers arriving every hour, with a standard deviation of interarrival times of 2 minutes. This arrival pattern is consistent and is independent of the time of day. The checkout is currently operated by one employee, who needs on average 1.7 minutes to check out a customer. The standard deviation of this check-out time is 3 minutes, primarily as a result of customers taking home different numbers of videos.Required:a. If you assume that every customer rents at least one video (i.e., has to go to the checkout), what is the average time a customer has to wait in line before getting served by the checkout employee (i.e., waiting time in queue)?b. If there are no customers requiring checkout, the employee is sorting returned videos, of which there are always plenty waiting to be sorted. How many videos can the employee sort over an 8-hour shift (assume no breaks) if it takes exactly 1.5 minutes to sort a single video?c. What is the average number of customers who are at the checkout desk, either waiting or currently being served? Someone, please help me out! (y0u can z00m in) Which situation represents an internal conflict? Multiply. (2/5)(5/4) Enter your answer as a fraction, in simplest form, in the box. How many 5-digit numbers can be formed using the digits 1, 2, 3, 4, 5, 6, 7 if repetition of digits is not allowed? What percent of 25 is 20?A) 40%B) 50%C) 60%D) 80% Hey I need Help pls...Select the correct answer.Which statement is true about the slope of the graphed line?A. The slope is negative.B. The slope is positive.C. The slope is zero.D. The slope is undefined. What do you think the theme is of "The Lottery" ? What distance will a car traveling at a speed of 15 m/s cover in 300 s? Holi quien quiere ser mi amigo? Which statement is true regarding the graphed functions?f(0) = g(0)f(-2) = g(-2)f(0) = g(-2)f(-2)=g(0) Julie Brown is a single woman in her late 20s. She is renting an apartment in the fashionable part of town for $1,000 a month. After much thought, she's seriously considering buying a condominium for $175,000. She intends to put 20 percent down and expects that closing costs will amount to another $5,000; a commercial bank has agreed to lend her money at the fixed rate of 6 percent on a 15-year mortgage. Julie would have to pay an annual condominium owner's insurance premium of $560 and property taxes of $1,000 a year (she's now paying renter's insurance of $550 per year). In addition, she estimates that annual maintenance expenses will be about 0.5 percent of the price of the condo (which includes a $30 monthly fee to the property owners' association). Julie's income puts her in the 25 percent tax bracket (she itemizes her deductions on her tax returns), and she earns an after-tax rate of return on her investments of around 4 percent.Required:a. Evaluate and compare Julies alternatives of remaining in the apartment or purchasing the condo.b. Working with a friend who is a realtor, Julie has learned that condos like the one that shes thinking of buying are appreciating in value at the rate of 3.5 percent a year and are expected to continue doing so. Would such information affect the rent-or-buy decision made in a?c. Discuss any other factors that should be considered when making a rent-or-buy decision.d. Which alternative would you recommend for Julie in light of your analysis? In the late 1930s management at Atalanta Industries agreed to hire only those workers who were already members of the Electrical Union. Atlanta agreed to a type of arrangement known as a(n) A scuba diver swam 96 ft.below the surface of thelake. He then swims up 49ft. What is his depth now? The Trapeze Act Toby McAlister was a third-generation circus performer. He had started juggling when he was three years old. At the age of five, Toby could ride a unicycle while juggling six balls. When Toby turned eight, his father decided to start training him on the trapeze. Toby loved the trapeze. He quickly mastered swinging and transferring between trapeze bars. After only a few months of training, Toby was part of his father's act. As the years passed, Toby learned to do more stunts. The father-son trapeze act became increasingly exciting and dangerous. One evening, Toby was especially excited about his performance. He was going to execute a triple somersault in mid-air without a net below him. "You are going to be the biggest star of the circus! Here is a shiny gold suit to show the world how brilliant you are!" Toby's father said as he gave him a new costume to wear. Toby's mother however was not supportive. She cried and begged Toby and his father to use the net. "Mama, don't worry. I practiced this act a million times and never fell once!" Toby told his mother. "Toby is a master. I would not let him do the trick if I had any doubts. The crowds will love it!" Toby's father said. When it was time for the trapeze act, Toby turned to the audience and posed with his arms raised high. Then, he grabbed the first trapeze bar, and leaped from the platform. For the first few minutes, Toby did his usual tricks. "Ladies and gentleman, please give me your undivided attention! Tonight, Toby McAlister is going to perform a death-defying stunt right before your very eyes. He will attempt the triple somersault without a net!" the ringmaster announced. Then, several workers entered the ring and removed the safety net. The audience grew still and silent. Toby's mother sat in the front row and prayed that Toby would not fall. As Toby's feet left the platform, Toby's mother held her breath and closed her eyes. Suddenly, the audience gasped. Toby's mom felt her heart stop for a moment. Then, the arena erupted with applause. Toby's mom opened her eyes to see that Toby's father was holding him by the feet as he hung upside down. Toby's mom let out her breath, stood to her feet, and cheered.How do the differing points of view of Toby and his mother affect the story? A. It creates tension and suspense. B. It foreshadows the outcome of Toby's act. C. It characterizes Toby's mom as overbearing. binary ionic compounds are called salts. true or false If the body with a mass of 4kg is moved by a force of 20 N, what is the rate of its acceleration?