A constant electric field E = (3N/C)ĵ is present in space. Find the work done by the electric field if a positive charge q = 2 C moves from Tin = 2î + 33+k to Tfin = 5î – 23 – 2k, where r is in meters. (Your answer should include the unit. Put a minus sign on the left for negative work; Ex: -1) Answer:

You must answer no. 11 and 12 The answer in no.11 should be (a) gravity and (b) 15.7 J THANK YOU IN ADVANCED. I HOPE YOU CAN ASWER THOSE PROBLEM.

(dA)T,V >0

A 8 kg particle is in a potential given by U(x) = 1 x^4 - 7 x^2 - 3 x + 8 (J).  Calculate the acceleration of the particle when it is at x = 1 m, in m/s2. (Please answer to the fourth decimal place - i.e 14.3225)

A body with mass 0.40 kg moves in one dimension according to a potential of theform                             U(x) = A/x3-B/x ,  where A = 4.0 Jm3 abd B = 3.0 Jm, and we take x > 0. (a) If the speed of the body at x = 4.0m is v = 3.9 ms−1, what is the speed at x = 1.5 m? (b) Explain briefly what type(s) of motion are possible in this potential if the totalenergy E = 3.0 J.

The second part of a question, especially the section (e)

DATE aoticle: Data science & pata analytics-7days 3 A DATE 8-10Poy:s hed Hi W से 0· ॥ q A vehice went thkimbing up agradient consumes petrol ot a rate of 1L/8 km, while cuming down it gives I2/12 lem. find it's average cansumplion Per : to and ho travel between twoiplaces situated at the two ends of a tonggradient sns:9.6cm/L 25 icm verity your an swier. 9:27 In a certain officea letter is buped by A in 4 mincetes, the same letter is t4ped ly B,sAPin s, 6,10 minutes respectively what is the average fime Aaicen in 856 14 いいて 1.7 letterghow many letters doyou expect to lac Lyped in I day-Compnising of Compliting 8 wonsing hauixs. ons 5-5814min/letter 344 letters 3. f 0.0205t ban Invester dies buys T200 wonth of share in an compary each month, dyrig. e first s manths e bouothl shares ata 7+0.0063 9:31ten x the of e, I 12,5 s 2514 price share, after 5 mon ths,what is the per avercege price paid for the shares by him. cns: ES. 14.63. 130 the a

(a) Find the potential difference ΔⅤe required to stop an electron (called a "stopping potential") moving with an initial speed of 2.12 x 107 m/s. .128 Your response is off by a multiple of ten. kV

Quiz nav tion 4 A stationery shop use the following electric appliances: (1) Four Air Conditioner of rating 2200 W for twelve hours each day (ii) Two Electric Freezer of rating 200ow each for 24 hours each day yet 2. ered ed out of (iii) Ten electric tube lights of rating 35W each for 12 hours each day. Calculate the electricity bill of the stationery shop for the month of November 2020 if the cost per unit of electric energy is 25 Bz/ kWh. Finish atte g question O Electrical Energy(in kWh) consumed by four Air conditioners of rating 2200 W for 12 h of each day= (1) Electrical Energy(in kWh) consumed by two Electric Freezers of rating 2000 W for 24 h of each day