Answer:
variable ratio
Explanation:
Variable ratio: The term has been widely used in operant conditioning.
A variable-ratio schedule is a kind of reinforcement schedule, in which a particular response is being reinforced after an unforeseeable number of responses. It creates a high and steady response to the desired behavior and the extinction of this behavior is very resistant.
Example: Lottery games and gambling, etc.
The example given in the question above is an example of a variable-ratio schedule of reinforcement.
Answer:
Motor neurons stimulate muscles to contract.
The EU is a political and economic union of 28 countries, which developed an internal single market through a standardised system of laws. Politically, these 28 countries are linked by the European Parliament, the European Commission, the Council of Europe and the European Council (the last two have similar names, but they have different functionalities). Economically, by the ECB - the European Central Bank. Monetarily, by the Eurozone and the currency EURO, which is present in 19/28 countries. Also, there's a Schengen area, where passports are abolished and you can travel freely, BUT not all the countries that are in the EU, are in Schengen area (ex. Romania, Bulgaria); and vice-versa: Norway is not in the EU, but is part of the Schengen area.
I hope I helped, I used to have a "map" of interactions of all these countries in different unions/institutions, but cannot find it. If you need one to help you understand the EU better, tell me and I'll intensively look for it!
Update: here's the map.
Answer and Explanation:
The exact time interval between the two different events is the time interval that is measured or calculated by an observer whose position is at rest comparative to the events and watch them taking place at that particular place. The beginning includes the start of the run to first base in the event whereas, the finish of the run to the first a base is the end of the event.
The runner watches the end and the beginning of the event that occurred next to him and hence, the event took place at the same place where the runner was present. The runner is considered at rest relative to his clock.
The exact length of an object is considered to be the length that can be measured by an observer who is believed to be at rest concerning the object.
The catcher is supposed to be at rest relative to the distance between home plate and first base.
Bro your in 7th grade you have to pay attention bro