Question Solved1 Answer An article in Medicine and Science in Sports and Exercise "Electrostimulation Training Effects on the Physical Performance of Ice Hockey Players (2005. Vol. 37. pp. 455-460) considered the use of electromyostimulation (EMS) as a method to train healthy skeletal muscle EMS sessions consisted of 30 contractions (four-second duration, 85 Hz) and were carried out three times per week for three weeks on 17 ice hockey players. The ten-meter skating performance test showed a standard deviation of 0.09 seconds. Construct a 95% confidence interval of the standard deviation of the skating performance test. Assume population is approximately normally distributed Round your answers to 3 decimal places Sos 0.138 Statistical

The accompanying specific gravity values describe various wood types used in construction. The accompanying specific gravity values describe various wood types used in construction. 0.32 0.35 0.36 0.36 0.37 0.38 0.40 0.40 0.40 0.41 0.41 0.42 0.42 0.42 0.42 0.42 0.43 0.44 0.45 0.46 0.46 0.47 0.48 0.48 0.49 0.51 0.54 0.54 0.55 0.58 0.63 0.66 0.66 0.67 0.68 0.78 Construct a stem-and-leaf display using repeated stems. (Enter numbers from smallest to largest separated by spaces. Enter NONE for stems with no values.) Stem = tenths Leaf = hundredths 3L 3H 4L 4H 5L 5H 6L 6H 7L ZH

Asset A has an expected return of 15% and a standard deviation of 20%. The risk-free rate is 5%. What is the reward-to-variability ratio?

1-)A 26.1 mL solution of HBr (a strong acid) of unknown concentration was titrated using 0.6088 mol L-1 NaOH using phenolphthalein as a pH indicator. At the moment when the solution turned a consistent light pink colour, the burette volume read 28.65 mL. The initial burette reading before the experiment was 7.70 mL. What was the concentration of HBr in the original HBr solution in mol L-1 2-)What is the value of the equilibrium constant (K) for the following neutralization reaction: 𝐻3𝑂++𝑂𝐻−⟶2𝐻2𝑂H3O++OH−⟶2H2O Remember: if you want to express an answer in scientific notation, use the letter "E". For example "4.32 x 104" should be entered as "4.32E4". Hint: To answer this question, you may need to use the value of Kw stated in the lab manual.

MISSED THIS? Read Section 2.3 (Pages 51 - 55); Watch KCV 2.3 Part A The second sample produced 25 g of A and what mass of B? Two samples of a compound containing elements A and B were decomposed. The first sample produced 15 g of A and 35 g of B. 0 58 g 011 g 45 g O 21 g Submit Request Answer

C(x) be the cost to produce x batches of widgets, and let R(x) be the revenue in thousands of dollars. Complete parts (a) through (d) below. R(x) = - 2x + 6x,C(x) = 5x +13 Graph both functions antify the vertex of R(x). e vertex of R(x) is ype an ordered palt. Simplify your answer. Type Integers or decimals.) aph R(x). Choose the correct graph below O O S OC. OD o TA o 9 o C) be the cost to produce x batches of widgets and let ) be the revenue in thousands of dollars. Complete parts (a) through () below RO - - * x2 + 6%. Cl2)* 3x + 13 antity the intercept of C) y-Intercept of Cy) is aty- plily your answer) aph C14 Choose the correct graph below co os Find the minimum break-even quantity SIE C(x) be the cost to produce x batches of widgets, and let R(x) be the revenue in thousands of dollars. Complete parts (a) through (d) b R(x) = -x +6%. C(x) = 3x+13 Find the minimum break-even quantity. sing the expressions - x and/or 7x + 13, identify an equation to be solved in order to find the minimum break-even quantity pe an equation. Use integers or fractions for any numbers in the equation) e minimum break-even quantity is implify your answer.) Find the maximum revenue. w can the maximum revenue be found? Choose the correct answer below. A. Find the y-intercept of R(x). B. Find the maximum y-coordinate of a point where R(x) = C(x) to select your answer C(x) be the cost to produce x batches of widgets, and let R(x) be the revenue in thousands of dollars. Complete Rex) = = x + 6x, Crew =x+ 13 Find the maximum revenue. bw can the maximum revenue be found? Choose the correct answer below. A. Find the y-intercept of R(x). B. Find the maximum y-coordinate of a point where R(x) = C(x). C. Find the x-coordinate of the vertex of R(x). D. Find the y-coordinate of the vertex of R(x). he maximum revenue is UT M ound to the nearest Integer as needed.) Find the maximum profit. P(x) be the profit in thousands of dollars. Identify an expression in terms of x for P(x). k to select your answer(s) B. Find the maximum y-coordinate of a point where R(x) = C(x). C. Find the x-coordinate of the vertex of R(x). D. Find the y-coordinate of the vertex of R(x). he maximum revenue is 01 ound to the nearest integer as needed.) Find the maximum profit. P(x) be the profit in thousands of dollars. Identify an expression in terms of x for P(x). implify your answer. Use integers or fractions for any numbers in the expression.) he maximum profit is ound to the nearest integer as needed.) sk to select your answer(s).

8. A billiard ball (mass m = 0.150 kg) is attached to a light string that is 0.50 meters long and swung so that it travels in a horizontal, circular path of radius 0.40 m, as shown. 0.50 m a. On the diagram, draw a free-body diagram of the forces acting on the billiard ball. b. Calculate the force of tension in the string as the ball swings in a horizontal circle. c. Determine the magnitude of the centripetal acceleration of the ball as it travels in the horizontal circle. d. Calculate the period T (time for one revolution) of the ball's motion.