Numerade

Questions asked

BEST MATCH

Patricia is trying to teach her dog, Cheerio, to roll-over on command. She uses a 500 Hz whistle and rewards Cheerio with a treat when she obeys. However, when Patricia uses a 5000 Hz whistle, she does not provide a treat even if Cheerio obeys. Over time Cheerio learns to roll over only when she hears the 500 Hz whistle. Which of the following best describes the function of the 5000 Hz whistle in this scenario? A) The 5000 Hz whistle serves as a positive reinforcer for Cheerio's roll-over behaviour. B) The 5000 Hz acts as the SD, signalling to Cheerio that the contingency between rolling over and getting a treat is "on". C) The 5000 Hz whistle signals that rolling over will not be reinforced, leading to a decrease in Cheerio's roll-over behaviour when it is blown. D) The 5000 Hz whistle serves as a negative reinforcer, increasing the likelihood that Cheerio will ignore the roll-over command.

View Answer

BEST MATCH

An electrochemical cell has the following reaction occurring at the cathode. Ni$^{2+}$ (aq) + 2e$^-$ ?Ni (s) Part A Which anode reaction would produce a battery with the highest voltage? A Cr (s) ?Cr$^{3+}$ (aq) + 3e$^-$ B Mg (s) ?Mg$^{2+}$ (aq) + 2e$^-$ C Cu (s) ?Cu$^{2+}$ (aq) + 2e$^-$ D Ag (s) ?Ag$^+$ (aq) + e$^-$ OB OA OC OD

View Answer

BEST MATCH

If the income elasticity for certain restaurant meals is 1.5, then the meals are: inferior goods substitute goods complementary goods normal goods

View Answer

BEST MATCH

Part A A capacitor is made from two 1.4-cm-diameter coins separated by a 0.12-mm-thick piece of paper (K = 3.7). A 12 V battery is connected to the capacitor. How much charge is on each coin? Express your answer using two significant figures. q= 4.2 \cdot 10^{-5} C

View Answer

BEST MATCH

Despite significant advancements in electronic payment systems, many firms continue to pay invoices with paper-based checks mailed to suppliers. True False

View Answer

BEST MATCH

Exercises. 1 Compute the following linear combinations of vectors: aIn the vector space R - and b In the vector space R3 and c In the vector space R +3

View Answer

BEST MATCH

1) Draw the following waveshape (completely detail axis and values), and state its frequency. (5pts) x(t) = 25 sin(471t + 45°) (i) 2) Change the following into polar form: (5pts) a) r = 11 - j7 b) e = (9 + j3) + (15 - j3) Change the following into cartesian form c) o = 10\90° v d) p = (40\50°) / (4\-30°)

View Answer

BEST MATCH

Hi, Asynchronous Transfer Mode (ATM) offers services to three different types of technologies: Constant Bit Rate (CBR), Unspecified Bit Rate (UBR), and Available Bit Rate (ABR). Each technology has its pros/cons when dealing with ATM. In a 400-500 word document, please submit a doc in which you examine UBR, CBR, and ABR technologies. Choose one of these as the preferred method for transmitting data when bit-rate and minimum quality of service are top priorities and defend why this technology is the best of the three.

View Answer

BEST MATCH

C++ Programming Write a program that will test the efficiency of the selection sort method of sorting arrays. Your program will define three arrays of 500 integers, 1000 integers, and 5000 integers. For each of the arrays, it will initialize the array with random digits in the range of 1 to 10000. It will then sort the array using the selection sort. It will do the last two operations 1000 times. Each time the array is initialized and sorted, your program will record the number of swaps it takes to sort the array to a data file. Your data file must be named as First initial + Last name +

View Answer

BEST MATCH

The finance department has been directed to reduce the cash-to-cash cycle time to 24.2 days. You are the operations manager and need to adjust the COGS to achieve that goal. Given the following information, what must your COGS be? Days in the period: 30 Sales: $3,020,000 AR: $5,400,000 AP: $4,990,000 Inventory: $3,900,000

View Answer

david r.