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a 10,000kg railroad car is traveling with an initial speed of 24.0 m/s when it strikes an identical railroad car that is initially at rest. as a result of the collision the cars coupled together. what is initial speed of the coupled cars and how much original kinetic energy was lost in this collision? what are some sources of lost of energy of motion.
A bullet is fired through a board 7.0 cm thick in such a way that the bullet's line of motion is perpendicular to the face of the board, Find the total time the bullet is in contact with the board
The force shown in the attached figure is the net eastward force acting on a ball. The force starts rising at t = 0.012 s, falls back to zero at t = 0.062 s, Find the area of a nearly equally sized triangle
Calculate the time the microgel would require to recover to 99% of its initial height after the stress is removed. Determine the potential barrier for the molecule aggregation?
q1. youre driving down the highway late one night at 20 rm ms when a deer steps onto the road 35rm m in front of you.
An aircraft?starts at rest and is accelerated?at 13.2?m/s2 for 8.5 seconds, at which time the aircraft launches. What is the distance traveled from the starting point
A racecar starts from rest and accelerates to 100 km/hr halfway around a circular track of a radius 50 m. What is the magnitude of the acceleration of the car
A satellite is in a circular orbit around an unknown planet. The satellite has a speed of 1.60 104 m/s, What is the orbital speed of the second satellite?
What key considerations are involved in setting up a computer network for an integrated health care system and how do integrated systems affect the installation of networks.
There are two optical telescopes operating at the exact same frequency. The first telescope is a 10m telescope that is planned to be located at the L2 Lagrangain point 1.5 million kilometers past the orbit of the Earth. Which telescope will have ..
An elevator (mass 5000 ) is to be designed so that the maximum acceleration is 6.20×10?2. What is the maximum force the motor should exert on the supporting cable
A person on a safari wants to take a photograph of a hippopotamus from a distance of 78.8 m. The animal is 4.90 m long and its image is to be 1.24 cm long on the film. What focal length lens should be used
a disk is spinnning at a rate of 10 rad/s. a second disk of the same mass and shape, what is the final angular velocity of the two disks
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