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- Calculus volume 1
- Functions and graphs
- Exponential and logarithmic
[T] The concentration of hydrogen ions in a substance is denoted by
measured in moles per liter. The pH of a substance is defined by the logarithmic function
This function is used to measure the acidity of a substance. The pH of water is 7. A substance with a pH less than 7 is an acid, whereas one that has a pH of more than 7 is a base.
- Find the pH of the following substances. Round answers to one digit.
- Determine whether the substance is an acid or a base.
- Eggs:
mol/L
- Beer:
mol/L
- Tomato Juice:
mol/L
i. a. pH = 8 b. Base ii. a. pH = 3 b. Acid iii. a. pH = 4 b. Acid
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[T] Iodine-131 is a radioactive substance that decays according to the function
where
is the initial quantity of a sample of the substance and
t is in days. Determine how long it takes (to the nearest day) for 95% of a quantity to decay.
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[T] According to the World Bank, at the end of 2013 (
) the U.S. population was 316 million and was increasing according to the following model:
where
P is measured in millions of people and
t is measured in years after 2013.
- Based on this model, what will be the population of the United States in 2020?
- Determine when the U.S. population will be twice what it is in 2013.
a.
million b. 94 years from 2013, or in 2107
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[T] The amount
A accumulated after 1000 dollars is invested for
t years at an interest rate of 4% is modeled by the function
- Find the amount accumulated after 5 years and 10 years.
- Determine how long it takes for the original investment to triple.
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[T] A bacterial colony grown in a lab is known to double in number in 12 hours. Suppose, initially, there are 1000 bacteria present.
- Use the exponential function
to determine the value
which is the growth rate of the bacteria. Round to four decimal places.
- Determine approximately how long it takes for 200,000 bacteria to grow.
a.
b.
hours
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[T] The rabbit population on a game reserve doubles every 6 months. Suppose there were 120 rabbits initially.
- Use the exponential function
to determine the growth rate constant
Round to four decimal places.
- Use the function in part a. to determine approximately how long it takes for the rabbit population to reach 3500.
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[T] The 1906 earthquake in San Francisco had a magnitude of 8.3 on the Richter scale. At the same time, in Japan, an earthquake with magnitude 4.9 caused only minor damage. Approximately how much more energy was released by the San Francisco earthquake than by the Japanese earthquake?
The San Francisco earthquake had
times more energy than the Japan earthquake.
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Chapter review exercises
True or False ? Justify your answer with a proof or a counterexample.
For the following problems, state the domain and range of the given functions:
Questions & Answers
what does preconceived mean
How can I develope my cognitive domain
why is communication effective
Communication is effective because it allows individuals to share ideas, thoughts, and information with others.
effective communication can lead to improved outcomes in various settings, including personal relationships, business environments, and educational settings. By communicating effectively, individuals can negotiate effectively, solve problems collaboratively, and work towards common goals.
it starts up serve and return practice/assessments.it helps find voice talking therapy also assessments through relaxed conversation.
miss
Every time someone flushes a toilet in the apartment building, the person begins to jumb back automatically after hearing the flush, before the water temperature changes. Identify the types of learning, if it is classical conditioning identify the NS, UCS, CS and CR. If it is operant conditioning, identify the type of consequence positive reinforcement, negative reinforcement or punishment
please i need answer
Wekolamo
because it helps many people around the world to understand how to interact with other people and understand them well, for example at work (job).
Agreed 👍 There are many parts of our brains and behaviors, we really need to get to know. Blessings for everyone and happy Sunday!
ARC
A child is a member of community not society elucidate ?
Isn't practices worldwide, be it psychology, be it science. isn't much just a false belief of control over something the mind cannot truly comprehend?
compare and contrast skinner's perspective on personality development on freud
Skinner skipped the whole unconscious phenomenon and rather emphasized on classical conditioning
war
explain how nature and nurture affect the development and later the productivity of an individual.
nature is an hereditary factor while nurture is an environmental factor which constitute an individual personality. so if an individual's parent has a deviant behavior and was also brought up in an deviant environment, observation of the behavior and the inborn trait we make the individual deviant.
Samuel
I am taking this course because I am hoping that I could somehow learn more about my chosen field of interest and due to the fact that being a PsyD really ignites my passion as an individual the more I hope to learn about developing and literally explore the complexity of my critical thinking skills
and having a good philosophy of the world is like a sandwich and a peanut butter 👍
Jonathan
generally amnesi how long yrs memory loss
interpersonal relationships
What would be the best educational aid(s) for gifted kids/savants?
treat them normal, if they want help then give them.
that will make everyone happy
Saurabh
What are the treatment for autism?
hello. autism is a umbrella term. autistic kids have different disorder overlapping. for example. a kid may show symptoms of ADHD and also learning disabilities.
before treatment please make sure the kid doesn't have physical disabilities like hearing..vision..speech problem. sometimes these
Jharna
continue..
sometimes due to these physical problems..the diagnosis may be misdiagnosed.
treatment for autism.
well it depends on the severity.
since autistic kids have problems in communicating and adopting to the environment.. it's best to expose the child in situations where the child
Jharna
child interact with other kids under doc supervision.
play therapy.
speech therapy.
Engaging in different activities that activate most parts of the brain.. like drawing..painting. matching color board game.
string and beads game.
the more you interact with the child the more effective
Jharna
results you'll get..
please consult a therapist to know what suits best on your child.
and last as a parent. I know sometimes it's overwhelming to guide a special kid.
but trust the process and be strong and patient as a parent.
Jharna
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Source:
OpenStax, Calculus volume 1. OpenStax CNX. Feb 05, 2016 Download for free at http://cnx.org/content/col11964/1.2
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