A circular coil of wire has a radius of 9.0 cm and has 140 turns of wire that carries 7.1 A of current. Part A What is the magnetic field at the center of the coil?
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23) Solve this question, as soon as possible
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- < 7:52 Yr 12 Phy Wk 03 D1 Jan 2024 Fo... 2. (a) The figure below illustrates a racetrack near a refuelling station. (b) route of car B (ii) racetrack 160 m route of car A to refuelling station 120m the time taken return route to race track for car A refuelling station The cars A and B are in a race and both have a speed of 80 m s¹. Car A has a lead over car B of 17.0 s at X when A leaves the racetrack to refuel. Car A travels 120 m from X to the refuelling station. Calculate the following values for car A, from the point where it leaves the racetrack until it comes to rest at the refuelling station. Assume the deceleration is constant. (1) the average deceleration deceleration = time = Dedicated to Excellence...!!! Q -Y ms-² Car A refuels in 9.0 s and then takes 4.0 s to travel to Y. During the refuelling of car A, car B continues to travel at 80 m s -¹. Calculate the time difference between the cars A and B as car A arrives back on the racetrack at Y. time = [3] [Total 9 marks]44. Let A=(2 m)î +(6 m)j – (3 m)k and B = (4 m)î +(2 m)† +(1 m)k. Then Á · B equals: A) (8 m)î +(12 m)}-(3 m)k B) (12 m)î – (14 m)}–(20 m)k C) 23 D) 17 E) none of theseNumbers 12-14: Camille walks a distance of O.5 km from CNSM building to the upper comcent, while on her way home he saw John just 0.25 m from her cottage.
- Two automobiles are 150 kilometers apart and traveling toward each other. One automobile is moving at 35 km/h and the other is moving at 40 km/h. In how many hours will they meet? A) 2.5 h B) 2.0 h C) 1.75 h D) 1.5 h F) 1.25 h8) Two ships are 10 km apart and moving toward each other at 6.0 km/h and 4.0 km/h, respectively. A bird flies continuously back and forth between them at 20 km/h. What is the total distance traveled by the bird when the ships meet? I need to show all works physics flow chart10) An advertisement for the newest model of a Mercedes sports claims the car can go from 0 to 60 miles per hour (mph) in just 3.3 seconds!