PHYS103 Lab 1

Analyze the results Dependent Нурothesis Teat the hypothenis Draw a conclusion Bix Beientifie Method Independent Question/Problem Observation (1). is a proces that involves observation, data gathering, experimentation and analysis. This method is composed of (2) of the world around you steps. By making a detailed (3). This through your senses, you can be able to formulate a (4). where you step will lead you to an educated guess called (5) can have tentative answer to your question. In order for you to prove your educated by designing and conducting an guess you need to (6). experiment. In the experiment you need to identify the variables present and these and (8). variables. The data are the (7). The summarized from the experiment will be collected to (9) resulte from the experiment will determine whether the hypothesis is accepted or rejected and that is where you (10). 2 de

Practice Task 1. Consider the following satements below. Express each number in standard notation or in scientific notation as indicated. Express your solution. 1. The length of an electronic component is 0.0001265 mm. Write this in scientific notation. 2. The diameter of human immunodeficiency virus (HIV) os 0.00012 mm. What is the diameter if HIV in scientific notation? 3. Rocks around Mayon Volcano aged more than 20 000 000 years old. Express this number in scientific notation.4. The friction between the ocean and the ocean floor due to tides is causing the Earth's rotation to slow down by about 2 x 10-8 seconds per day. What real number is equivalent to 2 x 10-8?5. The radius of a hydrogen atom is 2.5 x 10-11, Express this number in standard notation.

the rate at which the total average number of COVID cases is increasing at x=15 tents and dx/dt=1 tent per day, given that if 25 tents are built, the average number of COVID cases per tent will be 6 cases while the average number of cases will increase by 2 per tent for each additional tent in the same area due to overcrowding. A. Illustration and Representation of Variables B. Detailed Solution C. Conclusion

A new drug is metabolized by healthy aduits at a rate of 25% each hour. After 2.5 hours, a patient had 100 mg of the drug in their body. How much of the drug were they given 2.5 hours ago? You can use the formula: R=Ix0.75 R= amount remaining 1- initial amount t- time Round your answer to one significant digit. Do not include the unit milligrams.

Consider the graph shown below. a. Identify what the graph shows b. Briefly explain what kind of information you can determine from the graph and how that information could be useful in its application related to the field of health sciences. In your answer: a. Make specific reference to any values you can read from the graph. b. Include any appropriate equations for the graph and explain how they could be used. 100% 90% 80% 70% 60% 50.00% 50% 40% 30% 25.00% 20% 12.50% 10% 6.25% 3.13% 1.55% 0.78% 0.39% 0% 16 24 32 40 48 56 64 Elapsed time (in days) parent isotope (%)

Question 7 For this course you will use APA (American Psychological Association) format for citing references. O True O False Question 8 The web is public domain -don't worry about plagiarizing from a website. O True O False

The question is at the picture. Answer should be round off to 2 decimal points with units.

The average reaction time for humans is 0.25 seconds to a visual stimulus, 0.17 seconds for an audio stimulus, and 0.15 seconds for a touch stimulus. Among the delta t measurements listed below, which ones are you most likely to trust? You may select more than one options. 1. O.40 s 2. 0.60 s 3. 1.10 s 4. 1.80 s Based on the information given, which action could you take to make your time measurement more meaningful? Select all that apply. 1. Increase the mass of M1 2. Decrease the mass of m1 3. Increase the mass of m2 4. Decrease the mass of m2 5. Increase m2's falling distance 6. Decrease m2's falling distance

sadvantage? -One advantage to using scientific notation is that it allows you to write a large number quickly by making it "shorter". One disadvantage is that| 3. Which of the following questions are testable using scientific experimentation? Identify the dependent variable for each testable question. A. Are there more seeds in a medium-sized Red Delicious apple or a medium-sized Granny Smith apple? B. Why do people smoke cigarettes? C. What happens to your blood glucose level if you do not eat lunch? D. Which planet is the most interesting to study? E. Which objects are attracted by a magnet: a metal paperclip, a copper penny, or aluminum foil?

Task 3 Radioactive decay is the process of transforming nucleus from unstable state to more stable state. The rate of radioactive decay depends on the specifications of the substance. Depending on that, we can define the half-life as the amount of time needed to convert half of the substance from the unstable radioactive state to the stable state. If you know that the rate of decay for a certain substance is proportional to the amount of the current substance x(t). Formulate a differential equation to express the previous (i) system. (ii) Solve this first order differential equation. (iii) If you know that for a certain substance (carboon-14), 5730 years are needed to convert half of the substance, find the value of the proportional constant.

Physicists and other scientists and engineers use models to solve problems and convey information. True False

Help please

Volume where 1- p2 S.A. side length (1) surface area (3) 1 1.5cm 135 cm 2 1 cm 05cm 0.9 cm 3 4 IMG_0958.JPG of a Cube = fo length of the Volume (V) 6 cm v ✓ 1.5 cm 4.86 cm A ئی 3 3+5 cm² I 1 cm³ 0.125 cm³ 0.729 cm³ A IMG_0953.JPG hp cube 4 G 12 6.667 IMG_0954.JPG

Which one is correct ?

00 Additional Activities A grocery store sells 5-1b bags of mangoes. You purchase four bags over the course of a month and weigh the mangoes each time. You obtain the following measurements: Week 1 weight: 4.8 lb Week 2 weight: 5.3 lb Week 3 weight: 4.9 lb Week 4 weight: 5.4 lb Does the measurement have random error? SD Does the measurement have systematic error?

Can you explain this problem , how do I get to the answer step by step please , this problem is part of significant figures and scientific notation show me how to get the answer

after finding a and b, please offer a simple explanation to why these values differ. thanks

Small animals eat much more food per kilogram of body mass than do larger animals. The basal metabolic rate (BMR) is the minimal energy intake necessary to sustain life in a state of complete inactivity. The table lists the BMR in kilocalories per day, the mass, and the surface area for 4 animals. What is the BMR per square meter of the surface area for the mouse?

Please answer the following question and sketch the graph and explain it. Please answer as soon as possible. I will be very thankful to you. God bless you

When what you are experimenting has 'far' results with the expected results as stated by the standards --- as for quality checking of the instrument and the process of using the instrument itself --- maybe, there are some issues with:  a. reliability b.  precision c. accuracy d. validity *Choose only one answer and explain.