Exams & Certification

Increasing marginal cost of production explains Multiple Choice the income effect. why the supply curve is upsloping the law of demand. why the demand curve is downward sloping The correct answer and explanation is : The correct answer is: why the supply curve is upsloping. Explanation: The concept of increasing marginal cost of production is […]

Water that comes from the tap is a good conductor of electricity. In the chapter preview, you can see a photograph that shows a stream of water being attracted to a charged comb. a. Explain why the water stream is attracted to the comb. b. Water droplets that break off from the stream are strongly

Marginal revenue for a purely competitive firm: a. is greater than price.b. is less than price.c. is equal to price.d. may be either greater or less than price. The correct answer and explanation is : The correct answer is c. is equal to price. Explanation: In a purely competitive market, firms are price takers, meaning

The demand curve in a purely competitive industry is , while the demand curve to a single firm in that industry is . a. perfectly inelastic, perfectly elasticb. downsloping, perfectly elasticc. downsloping, perfectly inelasticd. perfectly elastic, downsloping The correct answer and explanation is : The correct answer is: d. perfectly elastic, downsloping. Explanation: In a

Although Little Albert was classically conditioned to fear a rat, he also began to fear dogs, rabbits, and a Santa Claus mask. This is an example of a. stimulus generalizationb. reconditioningc. stimulus discriminationd. spontaneous recovery The correct answer and explanation is : The correct answer is a. stimulus generalization. Explanation: Stimulus generalization occurs when a

In Watson’s research with Little Albert, what was the CS? a. A spankingb. The Santa Claus maskc. A loud soundd. A white rat The correct answer and explanation is : The correct answer is d. A white rat. In Watson and Rayner’s 1920 experiment with Little Albert, the primary goal was to demonstrate how emotional

Calculate the molal entropy of fusion and vaporisation of ethyl alcohol which melts at 158.8 K and boils at 351.5 K. The latent heat of fusion and vaporisation are 108 kJ/kg and 855 kJ/kg respectively. The correct answer and explanation is : To calculate the molal entropy changes of fusion and vaporization for ethyl alcohol

The atomic number of oxygen is 8 because oxygen has? 8 protons in the nucleus.electrons in 8 shells.a second shell with 8 electrons.an atomic mass of 8. The correct answer and explanation is : The correct answer is: 8 protons in the nucleus. Explanation: The atomic number of an element refers to the number of

Which of the following is not characteristic of pure competition? a. price strategies by firmsb. a standardized productc. no barriers to entryd. a larger number of sellers The correct answer and explanation is : The correct answer is a. price strategies by firms. Explanation: Pure competition is a market structure characterized by several specific features.

A purely competitive seller is: a. both a “price maker” and a “price taker.”b. neither a “price maker” nor a “price taker.”c. a “price taker.”d. a “price maker.” The correct answer and explanation is : The correct answer is c. a “price taker.” Explanation: A purely competitive seller operates in a perfectly competitive market, characterized