What is railroad freight car final velocity
A railroad freight car with mass 32,000 kg is moving at 2 m/s when it runs into an at-rest freight car with mass of 28,000 kg. The cars lock together. What is their final velocity?
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what happens to light of a certain frequency when it is incident upon a material whose natural frequency is the same as the frequency of the light?
Was American involvement in World War I inevitable? What forces worked to maintain neutrality? What forces propelled the country away from neutrality and into full belligerency?
An object has a kinetic energy of 223 J and a momentum of magnitude 23.4 kg·m/s. Find the speed and the mass of the object.
The volume of the room is 60.0 m^3. When the temperature increases from 289 to 302-degrees K, what mass of air (in kg) escapes from the room?
After a 0.360-kg rubber ball is dropped from a height of 1.80 m, it bounces off a concrete floor and rebounds to a height of 1.40 m. Determine the magnitude and direction of the impulse delivered to the ball by the floor.
The script should be named final_YourLastname (e.g., a script written by York should be named: final_York). The script should implement car rental reservation activities. The main menu of the script must prompt us
An ideal gas is allowed to expand adiabatically until its volume increases by 50%. By approximately what factor is the pressure reduced? (k=5/3)
Give an algorithm to solve this problem in O(n) time, and explain why your algorithm runs in O(n) time. You may use the selection algorithms discussed in the book and the notes as subroutines of your solution. (Hint: you may want to call the selectio
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Which of the following best describes the rationale of those public officials who are promoting the policy referenced in the title of the Texas Tribune article?
Problem: Political messaging and how a policy is framed to one's supporters and to the general public are important.
What are 2 or 3 advantages of conducting policy evaluations in criminal justice? What is the significance of policy research in policy evaluation?
What is society's goal for unions? To limit individual employees' bargaining power To ensure that workers have a voice in how they are treated
How can grassroots movements and community-led initiatives drive change in addressing environmental injustices, and what strategies have proven
The control model is based on strict authority and rigid rules. It emphasizes discipline, surveillance, and limited privileges for inmates.
Question: Which of the following statements illustrates the impact of the reform era (1900-1920) on US political parties?