Answer:
75%
Explanation:
In order to understand this question you need to understand the matching law first. The matching law provides the density of reinforcement or the rate of reinforcement if more than one response is available simultaneously to the individual. Here, two responses are available which are left key, 60 reinforcers per hour, and right key, 20 reinforcers per hour. This provides the ratio between the two reinforcers which is 60:20 or 3:1 in favor of left key. Here, one has to make a prediction only for left key and based on 3:1 ratio it can be said that 75% of pigeon will make their responses on the left key.
Divided government
Divided government is a situation in the United States in which one party controls the presidency whereas other party control one or both the houses of the legislative branch. In the situation of divided government, there is a separation of power where the state is divided and each branch has independent powers and areas of responsibility to avoid conflict issues
Answer:
George Washington was the first president of the USA
Explanation:
Answer:
Explanation:
Dhiki (Nepali : ढिकी [ɖʱiki]), Dhinki or ढिँकि in Odia, is a traditional Nepalese rice (millet etc.) beater used in villages. In Odia,it is called Dhinki ଢିଙ୍କି. The manual wooden thresher 'Dhiki' is made of wood and works like a lever, but is instead used for grinding. The framework consists of a fulcrum having two pillars on each side, an effort area (where one person stands on the long thick plank of wood making effort at every interval), a long and thick plank of horizontal wood which has a small vertical extension that goes into a hole made in the ground. It is in this hole that the grains or dry chillies are kept to transform them into powder. the person using this usually places his/her leg on one side and press it hard and then leave it so that the other part hits the rice, millet, etc. and grinds it. It works like the see-saw i.e. when one part's up the other one's down and vice versa. It is a local technology used in nepali villages. When, rice mill was not used, this Dhinki used to dehusk the rice, make various powders like rice powder, masala powder etc. The dehusked rice was very healthy as it was not polished. The device required two persons. One to push the log upward by foot pressing of the lever downward and the second person rotate the rice load for uniform pounding.
