The correct answer is b. negative reinforcement. Since Elton followed his mother to stop her from nagging, it is called negative reinforcement. Had she used other ways to persuade him to study, it would be a positive reinforcement. Thank you for posting your question. I hope that this answer helped you. Let me know if you need more help.
Question:
What quantity do units represent in a value? A. Size B. Direction C. Magnitude D. Dimension
Answer:
D. Dimension
Explanation:
A unit is simply the measurement given to a dimension. In other words, units represent dimensions. For example, consider a ruler that is 20m long.
i. The value is 20m.
ii. The magnitude of the measurement is 20
iii. The unit of the measurement is meters(m) and that essentially represents the dimension (length) of the ruler.
The greenhouse effect is a warming effect caused by certain gases that retain heat from sunlight. Without such gases, the average surface temperature of the Earth would be below freezing, and as explained by the Encyclopedia of Environmental Science, “life, as we know it, would not exist.”
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The global warming debate is centered upon whether added greenhouse gases released by human activity will overheat the Earth and cause harmful effects.</span><span>
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Let's list the given information. The frictional force, denoted as Ff, is equal to 0.200 N. We have to find the normal force, denoted as Fn. The relationship between Ff and Fn is written as:
Ff = μFn
where μ is the coefficient of friction
If there is no given data for μ, we can't solve this problem. Suppose μ = 0.5, then the normal force would be:
Fn = Ff/μ = 0.2/0.5 = 0.4 N
Answer:
23 km/h
Explanation:
Let's take the direction "towards Lilah" as positive direction.
Then, we can write Felipe's velocity with respect to Lilah as
At the same time, Felipe throws the football forwards, towards Lilah. The velocity of the ball with respect to Felipe (and the skateboard) is
Since both Felipe and the ball are moving in the same direction, then the velocity of the ball with respect to Lilah can be calculated by adding the two velocities: