<span>Answer a. is correct. In this case the dog treats were positive reinforcers for staying close (the desirable behaviour). Repeated rewards for a certain behaviour work as positive reinforcers.</span>
Density: 1.9 g/cm3
density = mass/volume
d = 5.7/3
d = 1.9
Nearly 14 billion years, according to astronomers. Happy to help!
The weight of an object mass of 100 kg on the surface of a Planet willl is 981 N.
<h3>What is weight?</h3>
The weight of matter is found as the product of the mass and the gravitational acceleration;
Given data;
Weight of an object,W =?
Mass,m = 100 kg
Hence the weight of an object willl be 981 N.
To learn more about the weight refer;
brainly.com/question/10069252
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The amplitude was doubled