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21 Nov
2020

A segment of a pipe of varying diameter is shown in the figure. The…

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A segment of a pipe of varying diameter is shown in the figure. The pipe continues to the left and right of the segment that is shown. Water is flowing through the pipe at a rate of 17.0 L/s from point 1, where the diameter of the pipe is 10.0 cm, to point 2 which is 9.7 cm above point 1 and where the speed of the water is 4.32 m/s. a) What is the speed of the water, in m/s, at point 1? b) What is the diameter of the pipe, in cm, at point 2? c) What is the difference in pressure between the two points? P2 – P1
A uniform bar has two masses on each end. It is 9 m long and has a fulcrum in the
A uniform bar has two masses on each end. It is 9 m long and has a fulcrum in the middle. Mass 1 is 30kg and mass 2 is 40kg. Mass 1 is 2m away from one end of the uniform bar. Mass 2 is 3m away from fulcrum and is placed at the other end of the bar. where does the mass 3 (which is 20 kg) need to be placed on the bar for it not to rotate?
1-Gasohol is a blend of corn-based ethanol plus gasoline. What is the typical ethanol content in the gasoline sold at
1-Gasohol is a blend of corn-based ethanol plus gasoline. What is the typical ethanol content in the gasoline sold at service stations that do provide gasohol?a- 15-18%b- 6-12%c- 1-6%d- 12-15%2-Tidal basins fill and empty on a regular schedule owing the orbit of the moon. About how many high tides are there each year?a- we can’t predict that number.b- 365c- 12d- 7003-Chemical energy available in such reactions as one would find in a hydrogen fuel cell is a few electron-volts. Nuclear fission reactions one would find in a nuclear power reactor release about how many times greater energy?a- 100 millionb- 100 billionc- 1 billiond- 10 million
1. Define nuclear fission and explain it with the help of the Binding Energy per Nucleon (see fig 8-15). What
1. Define nuclear fission and explain it with the help of the Binding Energy per Nucleon (see fig 8-15). What is the difference between the nuclear fission from a nuclear reactor and an atomic bomb?2. Define nuclear fusion and explain it with the help of the Binding Energy per Nucleon (see fig 8-15). Why would this reaction not occur natural on Earth?
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A 21-year-old female college junior makes an appointment to see the APRN in the Student Health Clinic. The student tells
A 21-year-old female college junior makes an appointment to see the APRN in the Student Health Clinic. The student tells the APRN that it has gotten harder and harder for her to attend classes, especially her history class where the class is preparing for the semester’s end presentations. She says she is terrified to speak to the class and is considering dropping the class so she will not have to present. She has a significant impairment in social activities and has resigned from her sorority. She is unable to go to the library to study as she feels everyone is looking at her and mocking her. She admits to having some of these symptoms in high school, but the guidance counselor was able to work with her to decrease some of her symptoms. Past medical history noncontributory except for the milder symptoms exhibited in high school. Family history noncontributory. Social history positive for anxiety related to social situations that has had a negative impact on both her scholarly and social endeavors. The APRN diagnoses the student with social anxiety disorder (SAD). Describe the areas of the brain that are associated with social anxiety disorder. How is oxytocin associated with SAD?
With all the different forms of errors and it’s causes had in mind, how can you make sure that the
With all the different forms of errors and it’s causes had in mind, how can you make sure that the measurements that you collected is correct and acceptable?So how can you apply whay you have just learned on your daily life or in the future? What example or experience where you can apply what you have learned about types and errors?So what you think are the activities where vectors and vector addition can be applied? Cite a situation or examples which ideas and concepts about vectors that can be used?
What are the independent, dependent, and control variables seen regarding this research question: Investigate the relationship between the vertical height
What are the independent, dependent, and control variables seen regarding this research question: Investigate the relationship between the vertical height a marble is released from on a curved ramp and the horizontal distance it travels once projected horizontally from the end of the ramp, falling to the floor below.
The figure below shows a horizontal bar, of length 3.4 m, with forces acting on it. A 30 N force
The figure below shows a horizontal bar, of length 3.4 m, with forces acting on it. A 30 N force acts at its left end, point O, in a direction down and to the left, 45° below horizontal. A 25 N force acts at its center, point C, in a direction up and to the right, 30° to the right of vertical. A 20 N force acts at the right end, in a direction down and to the right, 20° below horizontal. A horizontal rod of length 3.4 m is centered on point C. The distance between point C and one end of the rod is 1.7 m. The left end of the rod is labeled O. A vector labeled 30 N starts at point O and points down and to the left at 45° below the horizontal. A vector labeled 25 N starts at point C and points up and to the right at 30° to the right of the vertical. A vector labeled 10 N starts at the right end of the rod and points down and to the right at 20° below the horizontal.
A three- loop stranding wave is generated in a string by attaching one end to a wall and letting the
A three- loop stranding wave is generated in a string by attaching one end to a wall and letting the transmitted and reflected waves interfere. If the wavelength is the wave is 15 cm, how far from the wall is the first anti node created?a,) 30 cmb.) 3.75 cmc.) 7.5 cmd.) 45 cme.) 15 cm
A long aluminum cylinder of 7.5 cm in diameter is initially at a temperature of 5 ° C and is
A long aluminum cylinder of 7.5 cm in diameter is initially at a temperature of 5 ° C and is introduced in air blasts of 100 ° C. if the temperature in the center of the cylinder is required to reach 47.5 ° C after 850 seconds. calculate the surface coefficient of heat transfer of the cylinder with respect to the air
A planet is discovered orbiting a distant star. The mass of the planet is 40 times the mass of the
A planet is discovered orbiting a distant star. The mass of the planet is 40 times the mass of the Earth, and its radius is one-tenth the Earth’s radius. If a 2400-kg rocket has an escape velocity v on the Earth, how does the escape speed of a 1200-kg rocket on the planet compare with v?

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