A charge of +3 micro-coulombs is attached to a string and another charge of -3 micro-coulombs is placed below the charge as shown. When the charge on…

A charge of +3 micro-coulombs is attached to a string and another charge of -3 micro-coulombs is placed below the charge as shown. When the charge on the string is in equilibrium, the angle between the string and the vertical is 15 degrees, the angle between the charges and the vertical is 27 degrees, and the distance between the charges is 3.3 cm. What is the mass of the charge of the string in kg?

A charge of +3 micro-coulombs is attached to a string and another charge of -3 micro-coulombs is placed below the charge as shown. When the charge on…

A charge of +3 micro-coulombs is attached to a string and another charge of -3 micro-coulombs is placed below the charge as shown. When the charge on the string is in equilibrium, the angle between the string and the vertical is 15 degrees, the angle between the charges and the vertical is 27 degrees, and the distance between the charges is 3.3 cm. What is the mass of the charge of the string in kg?

field test for a new exam was given to randomly selected seniors. The exams were graded, and the sample mean and sample standard deviation were…

field test for a new exam was given to randomly selected seniors. The exams were graded, and the sample mean and sample standard deviation were calculated. Based on the results, the exam creator claims that on the same exam, nine times out of ten, seniors will have an average score within 5% of 75%.Is the confidence interval at 90%, 95%, or 99%? What is the margin of error? Calculate the confidence interval and explain what it means in terms of the situation.

field test for a new exam was given to randomly selected seniors. The exams were graded, and the sample mean and sample standard deviation were…

field test for a new exam was given to randomly selected seniors. The exams were graded, and the sample mean and sample standard deviation were calculated. Based on the results, the exam creator claims that on the same exam, nine times out of ten, seniors will have an average score within 5% of 75%.Is the confidence interval at 90%, 95%, or 99%? What is the margin of error? Calculate the confidence interval and explain what it means in terms of the situation.

A researcher found a method she could use to manipulate and quantify phosphorylation amd methylation in embryonic cells in culture.

A researcher found a method she could use to manipulate and quantify phosphorylation amd methylation in embryonic cells in culture. She tried decreasing tjhe amount of methylation enzymes in the embryonic stem cells and then allowed the cells to further differentiate. Which of the following results would she most likely see?a. increased chromatin condensationb. decreased chromatin concentrationc. abnormalities of mouse embryosd. decreased binding of transcription factorse. inactivation of the selected genes

A researcher found a method she could use to manipulate and quantify phosphorylation amd methylation in embryonic cells in culture.

A researcher found a method she could use to manipulate and quantify phosphorylation amd methylation in embryonic cells in culture. She tried decreasing tjhe amount of methylation enzymes in the embryonic stem cells and then allowed the cells to further differentiate. Which of the following results would she most likely see?a. increased chromatin condensationb. decreased chromatin concentrationc. abnormalities of mouse embryosd. decreased binding of transcription factorse. inactivation of the selected genes