The beat frequency produced when a 240 hertz tuning fork and a 246 hertz tuning fork are sounded together is
a) 245 hertz
b) 240 hertz
c) 12 hertz
d) 6 hertz
e) none of the above

write the equation in standard form for the circle with center (5,0) passing through (5, 9/2) During a manufacturing process, a metal part in a machine is exposed to varying temperature conditions. The manufacturer of the machine recommends that the temperature of the machine part remain below 131F. The temperature T in degrees Fahrenheit x minutes after the machine is put into operation is modeled by T=-0.005x^2+0.45x+125. Will the temperature of the part ever reach or exceed 131F? Use the discriminant of a quadratic equation to decide.answer options1. No2. Yes hydroelectric dams generate electricity by question 20 options: a. using the energy of the river to produce steam. b. using run-of-the-river systems, in which turbines are placed into the natural water flow. c. water impoundment, in which dam operators control the rate of water flow to turbines. d. using generators that are placed on the bottom of a river. e. converting the kinetic energy of the water impounded behind a dam into potential energy. A research team has genetically engineered a strain of fruit flies to eliminate errors during DNA replication. The team claims that this will eliminate genetic variation in the engineered flies. A second research team claims that eliminating errors during DNA replication will not entirely eliminate genetic variation in the engineered flies(a)Provide ONE piece of evidence that would indicate new genetic variation has occurred in the engineered flies. iintellectual property rights may be legally protected in several ways. which of the following answer options is not one of the ways of protecting intellectual property? true/false. some governments initiate restrictive standards that detail exactly how a product must be sold in a country. trade experts call these restrictions what land extends from central mexico to costa rica? Seo-yeon owns a condominium. In each of the following alternative situations, determine whether the condominium should be treated as a residence or a nonresidence for tax purposes. Required: a. Seo-yeon lives in the condo for 19 days and rents it out for 22 days. b. Seo-yeon lives in the condo for 8 days and rents it out for 9 days. c. Seo-yeon lives in the condo for 80 days and rents it out for 120 days. d. Seo-yeon lives in the condo for 30 days and rents it out for 320 days. According to Money magazine, Maryland had the highest median annual household income of any state in 2018 at $75,847. Assume that annual household income in Maryland follows a normal distribution with a median of $75,847 and standard deviation of $33,800.(a) What is the probability that a household in Maryland has an annual income of $90,000 or more? (Round your answer to four decimal places.)(b) What is the probability that a household in Maryland has an annual income of $50,000 or less? (Round your answer to four decimal places.) what are two characteristics of net forces that are balanced Answering question like Authority, Bias, Relevance, and Audience is an important part of ____ websites to make sure they are appropriate to use for research purposes Along with experience, a(n) Blank______ approach is particularly important when selecting the right promotional tools because a large number of possible combinations can achieve the same objective.Multiple choice question.a.wait-and-seeb. singularc. analyticald. subjective if (20x+10) and (10x+50) are altenative interior angle then find x Predict the principal organic product of the following reaction. Specify stereochemistry where appropriate. 50 POINTSA bathroom heater uses 10.5 A of current when connected to a 120. V potential difference. How much power does this heater dissipate?Remember to identify all data (givens and unknowns), list equations used, show all your work, and include units and the proper number of significant digits to receive full credit Why do People use the expression Its raining cats and dogs! which of these reasons might result in the modern (human) development of a floodplain? (select all that apply.) there are two things you want to remember about bureaucrats. choose the two items that craig mentioned In April 1975, Khmer Rouge, Pol Pot's group, occupied Phnom Penh in Cambodia. The city's 2 million people were exhausted by years of fighting. They welcomed the invaders. They hoped that they would be able to build a new society with these heavily armed men. Unfortunately, that was not the case. Within days, the Khmer Rouge drove them all into the countryside to become workers in agricultural communes. They emptied Cambodia's other towns and put an end to money, markets, schools, newspapers, religious practices, and private property. The Khmer Rouge hated anyone with money or education. They believed in the empowerment of the rural poor. What kind of government is Khmer Rouge? OA. a legislative government B. a limited government OC. OD. a judicial government O an unlimited government a rectangular swimming pool 50 ft long, 30 ft wide, and 8 ft deep is filled with water to a depth of 6 ft. use an integral to find the work required to pump all the water out over the top. (take as the density of water lb/ft. )