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Sati [7]
3 years ago
5

What does the delta symbol represent in the equation?

Physics
2 answers:
Alex_Xolod [135]3 years ago
6 0

Answer:

Whenever you see the delta symbol infront of another, it always represents change. In other words:

Δu = u_f - u_i

  • u_i means "initial velocity"
  • u_f means "final velocity"

And in general, ΔX means Xfinal - Xinitial

aleksklad [387]3 years ago
5 0

Answer:

khange in velokity

Explanation:

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A 60.0 kg person walks from the ground to the roof of a 74.8 m tall building.how much potential energy doed the person have at t
faust18 [17]
So first, we multiply mass by gravity by height, which is 60 * 9.8 * 74.8 = <span>43747.2

So the answer is: </span><span>43747.2

Hope this helped! c:</span>

5 0
3 years ago
Consider a situation in which you are moving two point charges such that the potential energy between them decreases. (NOTE: ign
Oxana [17]

Answer: Option A

Explanation:

The potential energy decreases in the case when the charges are opposite and they attract each other.

In this case there is no external energy required in order to put the charges together.

This is so because the charges are opposite and they will attract each other. Yes, the only condition should be that the charges should be alike.

Example: a negative charge and a positive charge.

5 0
3 years ago
a spring stretches by 0.12 m when some apples weighing 3.2 N are supported from it. What is the Spring Constant?
Rainbow [258]

Answer:

Fa==kx

ma=-kx

(3.2)(9.8)=-k(0.12)

k=27 N/M

8 0
3 years ago
In order to maintain his status as an admired pianist, the late Arthur Rubinstein during his old age used special strategies, su
cricket20 [7]

Answer:

The Baltes' model of successful aging and its considerations for Aging Life Care

Explanation:

Baltes theory of successful aging – usually referred to as the SOC (selection, optimization, compensation) model. This model seemed to say that the old school of thought – disengagement – could be replaced by actively pursuing the means to make any specific situation better.

The selection, optimization and compensation (SOC) model, first presented by Baltes and Baltes (1990), provides a general theory for conceptualizing processes of successful development generally and in aging in particular (S.-C. Li & Freund, 2005). The meta-model of SOC evaluates cognitive-motivational processes regulating human development across the life span and was originally designed and developed as an explanatory framework for adaptation to aging.

The key concept of SOC describes a general process of adaptation that individuals are likely to engage in throughout life and is essential for the achievement of higher levels of functioning (P. B. Baltes & Baltes, 1990). The model takes the global view that at all stages of human development individuals manage their lives successfully through the developmental regulation processes of selection, optimization, and compensation. Successful development involves the orchestration of these three processes (selection, optimization, and compensation) which in turn, regulate the maximization of gains and minimization of losses over time. Selection, optimization, and compensation can be conceived of as one single “integrative” process of adaptive mastery and also on a lower or more micro level of aggregation, the facets of SOC can be viewed as separate processes, each contributing to successful development (Freund & Baltes, 1998b).

Selection refers to an individual focusing attention on fewer, more important goals e.g. rescaling/reconstructing goals. Optimization involves engaging in goal-directed actions and means; examples include investing time and energy into the acquisition, refinement and application of goal-relevant means, seizing the right moment, persistence, acquisition of new skills/resources, and practice of skills.

Compensation maintains a given level of functioning in the face of loss and decline in goal-relevant means by individuals investing in compensatory means.

3 0
4 years ago
Select the correct answer from the drop-down menu. A box contains shirts in two different colors and two different sizes. The nu
yKpoI14uk [10]

Answer:

P( red | large shirt ) ≠ P( large shirt)

P( Blue | large shirt ) = P( blue shirt)

P( shirt is medium and blue ) ≠ P( medium  shirt)

P( large shirt | red shirt ) ≠ P( red shirt)

Explanation:

P( red | large shirt ) = 42/77 = 0.5454 : P( large shirt)= 77/165 = 0.467

P( red | large shirt ) ≠ P( large shirt)

P( Blue | large shirt ) = 35/77 = 0.4545 : P( blue shirt)= 75/165 = 0.4545

   P( Blue | large shirt ) = P( blue shirt)

P( Shirt is medium and blue ) = 40/77 = 0.2424   : P( medium shirt)= 88/165 = 0.5333

P( shirt is medium and blue ) ≠ P( medium  shirt)

P( large shirt | red shirt) = 42/90 = 0.4667 : P( red shirt)= 90/165 = 0.5454

P( large shirt | red shirt ) ≠ P( red shirt)

7 0
3 years ago
Read 2 more answers
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