a. What is the resultant force exerted by the two cables supporting the traffic light in the figure? b. What is the weight of the light? c. If a 20-N wind blows on the traffic light to the right, what are the new tensions in each cable if the angles do not change?

Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley

An automobile steering wheel is shown. what is the ideal mechanical advantage? if the ama is 8, what is the efficiency of the steering wheel?

The weights of bags filled by a machine are normally distributed with a standard deviation of 0.05 kilograms and a mean that can be set by the operator. at what level should the mean weight be set if it required that only 1% of the bags weigh less than 9.5 kilograms? round the answer to 2 decimal places.