I was just at my doctor and was told I have high cholesterol after getting my blood work results backI didn't have much time to go into detail with my doc on the factors associating with thatThe normal average healthy range is 100 and belowI'm at 130 in cholesterol levelSo, why is it bad to have high cholesterol? I was told to eat more high fiber foods which will help and to make sure what I am eating does not have any cholesterolWhat risk factors come with high cholesterol? Also, I only eat twice a day and so are there any supplemental vitamins to take?
Your body needs very little cholesterol, and the cholesterol that cannot be put to good use is taken up by your immune system (white blood cells)These white blood cells become bloated, and deposit on the walls of your arteries, forming plaques, and contributing to arterial blockages, high blood pressure, and heart diseaseThe fiber will help because it is non-digestible, and has some similar chemical characteristics as cholesterol These similar characteristics allow you to poo out the cholesterol instead of absorbing itAs far as supplements go, there is always a debate going about whether they helpI say that if you have a low-nutrient diet, taking a multi-vitamin can't hurtI hope that helps!
In all the three cases the work to be done is the same and 4000 x 9.8 x 30 m 1176000 J (b) force needed to apply is Work to be done / distance through which we move the loadIn this case the crane moves the object through a distance of the same 30 m Hence the force needed is 1176000 / 30 3920 N{However this can be calculated using F mg since the force needed here is the same as the weight of the object}(c} As ion the case of (b) we can calculate the forceIn the case of ramp the distance through which the object moved is along the length of the planeIf L is the length of the plane then the force needed is Work to be done / distance through which we move the load F {1176000 / L } NIn all the cases, in effect we apply a vertical force which is equal to the weight of the objectSince the net vertical force is zero, the object will be at rest or will be in uniform motionThat is to say with no net acceleration.
WellSince you didn't say anything about frictional losses, just assume that the total work done is in changing the potential enrgy of the 4000kg as it moves through 30 m against gravityW delta Ep mgh 40009.830 1,176,000 JoulesThe force needed would be Fma 4,0009.8 39,200 N Doug
a Wmgh (4000Kg)(9.81m/s^2)(30m) 1177200 Jouls b Fmg (4000Kg)(9.81m/s^2) 39240 N f yessurelyA mass of 4 tons need a heavy crane to be moved.
(a) work mgh 4000 9.8 30 1176000 J (b) Force applied by crane W/ m 1176000/ 4000 294 N I hope it helps.
