Question An electron travels through a magnetic field with a strength of 3.10 T and is traveling at a speed of 3.49x10 m/s. What is the force on the electron as shown in the figure? O 1.22x10-11 (-9 – Â) N O 1.73x10-11 ( + ) N O 1.22x10-11 (+Â)N O 1.73x10-11 (-9 - ) N

Two identical metallic blocks resting on a frictionless horizontal surface are connected by a light metallic spring having the spring constant 150N/m and an un-stretched length of 0.37m as shown. A total charge of Q is slowly placed on the system, causing the spring to stretch to an equilibrium length of 0.42m as shown. Determine the value of Q, assuming that all the charge resides on the blocks and modelling the blocks as point charges. State your answer in mC to nearest 0.01 mC. Take electric constant ke to be 8.99x109 Nm2/C2\ wwwwww

True or False: The integral used to find the .5 volume in the first quadrant is S3 S4 (1 + x2y2) dxdy True o False o

A company records its employees movement In and Out of office in a table with 3 columns (Employee id, Action (In/Out), Created) Employee id Action Created 1 In 2019-04-01 12:00:00 1 Out 2019-04-01 15:00:00 1 In 2019-04-01 17:00:00 1 Out 2019-04-01 21:00:00 There is NO sample data for this question. You only need to submit the queries Please solve first 2nd and 4th it is bit confusing. Find number of employees inside the Office at current time Find number of employees inside the Office at “2019-05-01 19:05:00” Measure amount of hours spent by each employee inside the office since the day they started (Account for current shift if she/he is working) Measure amount of hours spent by each employee inside the office between “2019-04-01 14:00:00” and “2019-04-02 10:00:00”

Show all work and explain. The rigid bar is supported by the two short white spruce wooden posts and a spring. 50 kN/m А с B k 1 m -1 m -1 m Part A If each of the posts has an unloaded length of 1 m and a cross-sectional area of 850 mm² , and the spring has a stiffness of k = 4 MN/m and an unstretched length of 1.02 m , determine the force in each post after the load is applied to the bar. Express your answer to three significant figures and include appropriate units.

Sheila Williams, a medical secretary, earns $2,548 monthly for a 34-hour week. For overtime work, she receives extra pay at the regular hourly rate up to 40 hours and time and one-half beyond 40 hours in any week. During one semimonthly pay period, Williams worked 10 hours overtime. Only 2 hours of this overtime were beyond 40 hours in any one week. Compute the following amounts. Round all divisions to two decimal places and use the rounded amounts in subsequent computations. Round your final answers to the nearest cent. a. The regular semimonthly earnings $fill in the blank 1 b. The overtime earnings $fill in the blank 2 c. The total earnings $fill in the blank 3

Please write each number in front of the resultthank you. Shelly and Kelly Macdonald met up with Sarah and Tara MacNeill to go fishing in Cape Breton. They found two pools in a stream containing speckled trout (assume equal variance), with the Macdonalds at one pool and the MacNeills at the other, and at the end of the day each team had caught (and released unharmed) 5 fish. For each fish they recorded the length and weight, and the data on length (in cm) is summarized below (Give the answers to 2 places past decimal) Team Mean Sed. Dev Macdonald 19 1.4 MacNeill 2141 2 a.) To test whether or not the fish have the same mean size in the two pools, the null hypothesis will be: HO: 11-42 -2.41 HO: -2 -2.41 HO: 12-0 HO: -20 Tries 0/1 b.) The alternative hypothesis for this test will be: Ha: 1-2.-241 Ha1.22.41 Ma120 Hai 1-120 Tres 0/1 c.) What in the pooled estimate of the variance? ** Trys d.) Compute the value of the test statistic WOH Tries 0/5 e) Find bounds on the value for the test. P<.001 01 <P < .05 05 P1 P>.1 f) Is there statistically significant evidence against HO at a = 0.05 ? Yes No Not enough information to decide #*** Tries 0/1 g.) Calculate the 95% confidence interval for the difference in mean length Lower: Upper: