How fast do the two coast after they couple together
A railroad diesel engine weighs five times as much as a freightcar. If the diesel engine coasts at 4 km/h into a freightcar that is initially at rest, how fast do the two coast after they couple together?
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City of West Lafayette needs to perform some road maintenance and will rent excavator machines from a company. Each excavator will work at least 1 hour, but no more than 4 hours at a time. It is known that the working time of each excavator is eve
At a certain college, 50% of all students take advantage of free tutoring services. A sample of 36 students is selected. What is the probability that the proportion of students who take advantage of free tutoring services in the sample is between
By how much does the ball clear or fall short of clearing the crossbar?
Taking the surface tension of soap solution to be 0.0027 lbf/ft. Determine the work input required to inflate the bubble to a diameter of 3.2 inj.
What is the ratio of the final kinetic energy to the initial kinetic energy of the system (the two atoms)? In other words, what is KEfinal / KEinitial in this collision?
The rate constants of some reactions double with every 10 degree rise in temperature. Assume that a reaction takes place at 305 K and 315 K. What must the activation energy be for the rate constant to double as described?
Given the student waited less than 45 minutes, what is the probability they waited less than 20 minutes? What is the standard deviation of waiting time? What is the median waiting time?
A hollow cylinder (hoop) is rolling on a horizontal surface at speed v = 4.3 m/s when it reaches a 11° incline. (a) How far up the incline will it go?
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