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An sub with a mass of 1800 kg is traveling eastbound at 17 m/swhile a compact car with mass of 900 kg is traveling westbound witha speed of 15 m/s the cars collide head-on becoming entangled.Find the speed of the entangled cars after the collisionFind the change invelocity of each carFind the change in the kinetic energy of the system consisting of both cars.
Two rays travelling parallel to the principal axis strike a large plano-convex lens having a refractive index of 1.60. find the difference in positions where they cross the principal axis
A rock thrown horizontally from the top of a radio tower lands 22.0 m from the base of the tower. how high is the tower
The drawing shows two crates that are connected by a steel (Young's modulus 2.0 x 1011 N/m2) wire that passes over a pulley. determine the change in length of the wire
The Moon rotates once on its axis in 27.3 days. Its radius is 1.74 x 10 to the 6th m. What is the linear speed of a rock on the Moon's equator due only to the Moon's rotation
A 2.18-m-long diving board of mass 13.2 kg is 3.00 m above the water. It has two attachments holding it in place. what are the forces acting on the two attachments
A ray of light is incident normally on the right face of a 30o-60o-90o cubic zirconium prism, Determine the exit angle theta for the ray of light
A lighter-than-air balloon and its load of passengers and ballast are floating stationary above the earth. Ballast is weight (of negligible volume) that can be dropped overboard to make the balloon rise.
A glass block (n = 1.56) is immersed in aliquid. A ray of light within the glass hits a glass-liquid surfaceat a 63.0° angle of incidence. What is the smallest possiblerefractive index for the liquid
For the motion from the initial free until the piece of wood comes to rest, what is the total amount of work completed by friction.
An Australian emu is running due east in a straight line at a speed of 12.5 m/s and slows down to a speed of 11.4 m/s in 7.3 s. (a) What is the direction of the bird's acceleration? north south east west.
1 a notebook computer wire carries 1.5 a. how many electrons pass through the wire each second? 2 a 50-w and 100-w
An object weighs 277 N in the air. When tied to a string, connected to a balance, and immersed in water, it weighs 221 N. When it is immersed in oil, it weighs 257 N.
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