Bob of a ballistic pendulum of mass
A 15 g bullet is fired into the bob of a ballistic pendulum of mass 1.8 kg. When the bob is at its maximum height, the strings make an angle of 60° with the vertical. The length of the pendulum is 2.3 m. Find the speed of the bullet.
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To test the significance of an individual regression coefficient, we would conduct a _________________ and look for p-values smaller than 0.05.
The base of the fin is maintained at a tempatrure of 220oC while the fin is exposed to a convection environment at 23oC with h = 25 W/m2-oC. Calculate the heat lost per meter of fin depth.
The experiment is tried with two initial temperatures (a) 0 C and (b) 100 C. Calculate q, w, Delta U, Delta H and Delta Ssys and Delta Ssurr, Delta Suniv for the two expansions . Can you account for any differences between the two results?
One of the requirements of linear regression is homoscedasticity of the residuals. This means that ___________________.
If the fin is exposed to a convection environment at 20oC with a convection coefficient of 68 W/m2-oC and the tube wall temperature is 100oC, calculate the heat lost by the fin.
What is the probability a single color vehicle will have exactly 2 paint defects? What is the probability a two-tone vehicle will have exactly 1 paint defect? What is the probability a single color vehicle will go to the repair area?
In a car engine, gasoline (represented C8H18) does not burn completely, and some CO, a toxic pollutant, forms along with CO2 and H2O. If 5.0% of the gasoline forms CO:
A random sample size 43 is to be selected from a population that has a mean = 46 and a standard deviation of 17. Find the mean of this sampling data (nearest whole number). What is the probability that this sample mean will be between 45 and 52? (
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