Determine the angle of banking for the road
A 150 meter radius turn in a highway is designed such that 120 km/hr is the maximum safe speed of an automobile whose tires have a coefficient of friction of 0.4 for sliding (sideways) on the road. Determine the angle of banking for the road.
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For an aluminum alloy, the activation energy for crystal growth is 120 kJ/mol. By what factor would the rate of crystal growth change by dropping the alloy temperature from 500oC to room temperature (25oC)?
An experiment to measure the effect of giving growth hormones to girls affected by Turner's Syndrome was carried out recently in Vancouver.
Determine the volume flow rate of air through the fan in ft3/s and the minimum power in hp required for the fan. Choose the control volume sufficiently large to contain the fan.
A researcher wishes to compare the effects of two fertilizers on the yield of a soybean crop. She has 20 plots of land available and she decides to use a paired experiment - using 10 pairs of plots. Thus, she will
A gas changes in volume from 0.790 m^3 to 0.260 m^3 at a constant pressure of 1.20 x 10^5 Pa. (a) How much work is done on the gas? (b) How much work is done by the gas on its environment?
A study of cell phones and the risk of brain cancer looked at a group of 469 people who have brain cancer. The investigators matched each cancer patient with a person of the same sex, age, and race who did not have brain cancer, then asked about u
A 1.01 kg rolling hoop with a radius of 9 cm rolls without slipping. If the angular speed of the hoop is 2.09 rad/s , compute rotational kinetic energy of the rolling hoop in Joules.
Calculate the change in internal energy, ΔE, of a system that absorbs 300 kj of energy as heat from the surroundings and does 350 kJ of work.
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