What is the average thrust needed to land
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For a pendulum in a gravity field with point mass m and length L from mass to the pivot, derive the nonlinear equation of planar motion if theta is measured from the vertical (i.e., the equilibrium position theta_o = 0).
Saturated water vapor at 200 kPa is expanded slowly without friction (i.e. internally reversible). What is the change in specific entropy for the water, in kJ/kg*K?
Assuming the resistivity of the Nichrome remains constant at its 20.0°C value, find the length of wire used.
The blood pressure measurements of a single patient were taken by twelve different medical student and the results are listed below. Construct a scatterplot, find a linear correlation coefficient r, and find the p-value using a=0.05.
A 200 kg lander is approaching Mars. Assume a gravitational acceleration of 3.7 m/s^2. At the illustrated instant, h= 15 m and v = 2.5 m/s. What is the average thrust needed to land with a touchdown speed of 0.5m/s after 10 s?
Suppose IQ scores were obtained from randomly selected couples. For 20 such pairs of people, the linear correlation coefficient is 0.896 and the equation of the regression line is y^=6.22 + 0.95x, where x represents the IQ score of the wife.
Calculate the entropy generated in the process, in kJ/K. Use the first law and the second law in your analysis, and assume constant specific heat).
For an unpolarized electric field (i.e. the electric field has polarization components both parallel and perpendicular to the plane of incidence) incident on a this glass plane with n = 1.45, at what incident angle is the electric field polarized?
Car A is speeding in the positive x direction and is about to run through a red light and collide with car B ( heading in the positive y direction). At the time of collision va=vai m/s and vb=vbj m/s. Ma=1500 kg, Mb=2700 kg.
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