Supplies needed for a car wash fundraiser?
I've been elected the chairperson at school in charge a car wash fundraiser/benefit. I've only ever washed my dad's car on occasion, so I'm lost. Yes, I have a list of the obvious common sense things like "sponge" and "hose," but I'd like some advice on the small details to make this the best it can be. Besides, I'm only 14. Here's my list as of now: - sponges - hose - tables - chairs - cash box - long-reach sponges - towels - signs Any advice is greatly appreciated! (:
What supplies the needed centrifugal force in a car turning a corner on a level road?
The tire's friction provides the centripetal force to turn the car.
What supplies the needed centripetal force in a car turning a corner of a level road?
Centripetal force is not needed, but generated by the frictional force of the tires working to overcome the inertial force of the car. It has been a looooooong time since Physics class but I think that this is close.
What supplies the needed centripetal force in a car turning a corner on a level road?
Kimaiü ... Actually, based on the definition in the link I've provided, in my judgment, centripetal force is not involved in the matter of a car turning a corner. The linked web page says in part that "centripetal force is the external force required to make a body follow a circular path at constant speed." In the case of a turning car, there is no requirement that the speed be constant. Furthermore, the path it follows is not necessarily circular, of course. Lastly, I do not see how centripetal force is needed for the car to make turns. As I think of the areas in which centripetal force applies, the first thing that comes to mind is orbital mechanics, for lack of a better term. There may indeed be earth-bound situations, but none comes to mind right now and I think a turning vehicle is not one of them. I hope this helps, Kimaiü.
Physics HEEELP for 5 part ?...What is the net centripetal force needed to keep the car from skidding?
This is really a poorly worded problem! It’s hard for me to see a distinction between 2) and the statements prior to 2) since there is no mention of friction in those comments, so it seems as though the answer to those statements is the same as in 2). 2) The centripetal force is not a force by itself, but an acceleration caused by other forces. In this case, the force causing the centripetal acceleration is the horizontal component of the normal force from the road, that component is in the form nsinθ, so we can write: ΣF(x) = mv²/r = nsinθ n = mv²/rsinθ = (2900kg)(29m/s)² / (64m)sin27° = 17,000N (rounded) 3) Since friction is to keep the car from skidding, so that friction acts down the incline, then the horizontal component of friction acts inward (adding to the horizontal component of the normal force), and Newton’s 2nd law gives us: ΣF(x) = mv²/r = nsinθ + μncosθ No coefficient of friction is given, but we can eliminate it by writing an equation for the vertical forces, solving it for μ, and plugging it into the equation for n above (note that the vertical component of friction acts into the incline): ΣF(y) = 0 = ncosθ - μnsinθ - mg μ = (ncosθ - mg) / nsinθ So: mv²/r = nsinθ + [(ncosθ - mg) / nsinθ]cosθ n = m(v² + grtanθ) / r(sinθ + cosθtanθ) = 2900kg[(29m/s)² + 9.8m/s²(64m)tan27°] / 64m(sin27° + cos27°tan27°) = 58,000N (rounded) 4) The friction force requires μ, and now that we have n, we can find μ: μ = (ncosθ - mg) / nsinθ = [58,000Ncos27° - (2900kg)(9.8m/s²) / 58,000Nsin27° = 0.88 So, the magnitude of the friction force is: f = μn = 0.88(58,000N) = 51,000N 5) Found in 3). No guarantees, but if I’m wrong, it’s because of the unusual wording of this problem!
What kind of overhaul will be needed on our power supply, assuming electric cars will become more main stream?
The same kind of overhaul it needed when electric clothes dryers became popular, i.e. not much. In any case, with the best will or incentives in the world, electric cars can only be manufactured and sold so fast. It is not going to happen overnight, so we have years to plan ahead for gradual upgrades that would need to be done in any case to accommodate increased demand, such as people becoming more affluent and installing air conditioning.If there is a cluster of electric cars in one neighbourhood, all charging at the same time, local distribution transformers may need to be upsized.Peaks in demand can be smoothed out by smart meters and intelligent chargers - if I plug in my car I want it charged by morning, but I don’t really care if it charges from 6pm till 7pm immediately I plug it in, or from 1am till 2am, or even from 3am till 5am at half the current. That could be arranged by market pricing without direct control - if my utility publishes a personal rate schedule online for the next week giving me a reduced rate between 2am and 5am, while my neighbour gets 11pm till 2am, my smart car might automatically decide to charge at 2am if I tell it “save money”, or at 6pm if I tell it “now; I’m going out at 8”.
What are the materials needed to wash a car?
Here is a list for basic exterior car wash.2x Bucket2x Wash mit/Sponge. One for body of the car and the other for wheels and tyres2+ microfiber clothsGood car wash and wax shampooCar wax for that extra stepwaterOther materials are needed for more advanced cleaning. Such as cut & polish materials.Here are some tips.
What force supplies the centripetal force necessary to maintain circular motion?
first of all, if you ask any physicist, they will tell you that "centrifugal" force is not a real force. when the car is traveling in a circle, it wants to maintain its forward motion, but its constant change in direction causes an acceleration outward (away from the center). The mass of the car times the centripetal acceleration will give you that "force" Friction is what causes the car to maintain it's circular motion. If it weren't for friction, the car would maintain forward motion. (That's why its hard to turn on ice)
Friction is needed for a car rounding a curve, but if the road is banked friction may not be required...?
I'm trying to study for a physics exam and I'm having some trouble with rotation. The question is: "Friction is needed for a car rounding a curve. But if the road is banked, friction may not be required at all. What, then, supplies the needed centripetal force?" I'm taking a conceptual physics class, so the tests are really centered around understanding the concepts. It would be great if someone could help me walk through the concepts behind this problem. Thanks!