A colleague tells you that a sample was centrifuged for a certain time at a speed...
A colleague tells you that a sample was centrifuged for a certain time at a speed of 15,000 RPM and that your centrifuge has a radius of rotation of 9.2cm. What speed will you use to achieve a force of 16,000x g?
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A colleague tells you that a sample was centrifuged for a
certain time at a speed...
a chemical centrifuge holds containers 55mm from the centre, and has an operating rotation speed of...
a chemical centrifuge holds containers 55mm from the centre, and has an operating rotation speed of 5400 rpm. if a container is holding 15 grams of material, what is the centripetal force exerted on the container by the centrifuge
Which of the following tells you the speed of an object at a particular time O...
Which of the following tells you the speed of an object at a particular time O a. average speed O b. acceleration O c average velocity d none of the above
A colleague tells you that he is purchasing a health insurance policy, but the premiums seem...
A colleague tells you that he is purchasing a health insurance policy, but the premiums seem very high for the level of coverage. Use the following table to classify each explanation for the high premiums as an instance of either adverse selection or moral hazard. Adverse Selection Moral Hazard Explanation for High Premiums The insurance company cannot determine which customers are healthy and which are unhealthy. The insurance company believes that the health insurance will increase the likelihood that your...
6) A massless turntable is used to play records. Each record is essentially a solid cylinder with...
6) A massless turntable is used to play records. Each record is essentially a solid cylinder with a radius of 0.15 m and mass 0.1 kg. There is a constant frictional force of 0.5 N due to a wire rubbing against the record a distance of 0.05 m from the axis of rotation. Answer the following questions assuming that you apply a tangential force on the record with your finger at a distance of 0.1 m from the axis of...
To find the speed of the X feature, you will need a distance and time. You...
To find the speed of the X feature, you will need a distance and time. You have a value for the circumference of the GRS. By looking at the distance the X has traveled as a percentage of the GRS’s circumference (about 25% of 88,000 km), you can estimate the distance it traveled around the GRS, but you also need to know how much time it took for that partial rotation. We know there were 3, 571 hours in between...
2) Your colleague is loading a sample of rubber to test is graphs the results of...
2) Your colleague is loading a sample of rubber to test is graphs the results of the test and compares them with for rubber. The graph she has plotted is shown below. sample of rubber to test its elastic properties. She and compares them with the theoretical results Load Practical Theoretical Elongation a) Explain why the sample of rubber does not return to its original length when it is unloaded. b) Compare the theoretical graph to the practical results, are...
A colleague tells you that they think there is too much focus on making curriculum decisions...
A colleague tells you that they think there is too much focus on making curriculum decisions with a view to including children with diverse or additional needs. What would you tell them? (100–150 words) How might you communicate information about a child’s success during the day to families? Provide four example List three equitable and effective adaptations (not included in the text) that could be made for children with additional needs. Describe the needs of the child, the adaptation and...
A certain CD has a playing time of 78 minutes. When the music starts, the CD...
A certain CD has a playing time of 78 minutes. When the music starts, the CD is rotating at an angular speed of 4.50×1024.50×102revolutions per minute (rpm). At the end of the music, the CD is rotating at 2.00×1022.00×102 rpm. Find the magnitude of the average angular acceleration of the CD. Express your answer in rad/s².
A certain CD has a playing time of 68 minutes. When the music starts, the CD...
A certain CD has a playing time of 68 minutes. When the music starts, the CD is rotating at an angular speed of 5.00 × 10 2 revolutions per minute (rpm). At the end of the music, the CD is rotating at 2.30 × 10 2 rpm. Find the magnitude of the average angular acceleration of the CD. Express your answer in rad/s².
A certain CD has a playing time of 80 minutes. When the music starts, the CD...
A certain CD has a playing time of 80 minutes. When the music starts, the CD is rotating at an angular speed of 4.60×1024.60×102 revolutions per minute (rpm). At the end of the music, the CD is rotating at 2.20×1022.20×102 rpm. Find the magnitude of the average angular acceleration of the CD. Express your answer in rad/s².
Which of the following tells you the speed of an object at a particular time O a. average speed O b. acceleration O c average velocity d none of the above
A colleague tells you that he is purchasing a health insurance policy, but the premiums seem very high for the level of coverage. Use the following table to classify each explanation for the high premiums as an instance of either adverse selection or moral hazard. Adverse Selection Moral Hazard Explanation for High Premiums The insurance company cannot determine which customers are healthy and which are unhealthy. The insurance company believes that the health insurance will increase the likelihood that your...
6) A massless turntable is used to play records. Each record is essentially a solid cylinder with a radius of 0.15 m and mass 0.1 kg. There is a constant frictional force of 0.5 N due to a wire rubbing against the record a distance of 0.05 m from the axis of rotation. Answer the following questions assuming that you apply a tangential force on the record with your finger at a distance of 0.1 m from the axis of...
2) Your colleague is loading a sample of rubber to test is graphs the results of the test and compares them with for rubber. The graph she has plotted is shown below. sample of rubber to test its elastic properties. She and compares them with the theoretical results Load Practical Theoretical Elongation a) Explain why the sample of rubber does not return to its original length when it is unloaded. b) Compare the theoretical graph to the practical results, are...
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