Find the stress at the bar if temperature is changed
A steel rod of 4m length is attached at both ends at 30 degree C. The coeff of thermal expansion is 11 * 10^-6 % and MOE is 2 * 10^5 kg/cm^2. If temp is changed to 18 degrees C find the stress at the bar?
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A 480 kg car moving at 14.4 m/s hits from behind another car moving at 13.3 m/s in the same direction. If the second car has a mass of 570 kg and a new speed of 17.9 m/s, what is the velocity of the first car after the collision?
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iPad Mini weighs less than 11 ounces and is about 50% lighter than the standard iPad. Battery tests for the iPad Mini showed a mean life of 10.25 hours. Assume that battery life of the iPad Mini is uniformly distributed between 8.5 and 12 hours. G
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A study of 31,000 hospital admissions in New York State found that 4% of the admissions led to treatment-caused injuries. One-seventh of these treatment-caused injuries resulted in death, and one-fourth were caused by negligence. Malpractice claim
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A researcher is trying to find out whether there is a difference in the racial mix (measured as: Caucasian, Asian, African American, other) of patients served by Clinic A versus Clinic B. What statistic should be used to test if the two clinics ha
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