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Question: Two trains running in opposite direction cross a man standing on the platform in 27 sec. and 17 sec. respectively and they cross each other in 23 seconds.
Part A- Find the ratio of their speed?
Please include each step and the equations you used. Thanks!
Two children standing on opposite sides of a merry-go-round are trying to rotate it. They each push in opposite directions with forces of magnitude 10.0 N. How fast is the merry-go-round rotating after 4.0s
Tritium (3/1 H) is a heavy isoptope of hydrogen, with an atomic mass of 3.016049u. Normal hydrogen has an atomic mass of 1.007825u, find the binding energy per nucleon for titium
in your opinion is the earth warming? to what extent do you believe this warming is a result of human activity?your
A convex mirror has a focal length of 28 cm. Where is the image if the image is upright and three-fourths the size of the object? Asking for distance and location.
A skier of mass 79 kg starts from rest at the top of a hill that is inclined at 17.5° with the horizontal. The hill side is 205 m long, and the coefficient of friction among snow and skis is0.073. At the bottom of the hill, the snow is level and the ..
A positive charge of 5.10 uC is fixed in place. From a distance of 3.50 centimeter a particle of mass 6.90 gram, Find how close to the fixed charge does the particle get before it comes to rest and starts traveling away
Two prisms with the same angle but different indices of refraction are put together to form a parallel sided block of glass, What angle will the emerging beam make with the incident beam
A fisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. How fast are the waves traveling
A uniform ladder is 10-m long and it weighs 100-N. The ladder leans against a smooth wall with its base on a sidewalk 6-m from the base of the wall. Find the force exerted on the ladder by the wall
A 2-kg book with no initial velocity slides down an inclined plane with an angle of 20 degrees a total of 2 meters. The force of friction does 10 Joules of work, what is the final kinetic energy of the system as the book reaches the bottom of the ..
A system consists of three particles with these masses and velocities: mass 3.2 kg, moving north at 3.0 m/s; mass 3.8 kg, moving south at 4.9 m/s, What is the total momentum of the system
two point charges are seperated by 10.0 cm and have charges of +2.00uc, What is the electrical field at a point between the two charges
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