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Two cars collide at an icy intersection and stick together afterward. The first car has a mass of1350kg and was approaching at4.00m/sdue south. The second car has a mass of900kgand was approaching at16.0m/sdue west. Calculate the final velocity (magnitude in m/s and direction in degrees counterclockwise from the west) of the cars. (Note that since both cars have an initial velocity, you cannot use the equations for conservation of momentum along the x-axis and y-axis; instead, you must look for other simplifying aspects.) How much kinetic energy (in J) is lost in the collision? (This energy goes into deformation of the cars.)
A rectangular plate has a length of (19.7 ± 0.2) cm and a width of (8.6 ± 0.1) cm. Calculate the area of the plate, including its uncertainty
An unknown substance has a mass of 0.125 kg and an initial temperature of 112.3°C. The substance is then dropped into a calorimeter made of aluminum containing 0.285 kg of water initially at 27.8°C.
A spring (k=600N/m) is placed in a vertical position with its lower end supported by a horizontal surface. The upper end is depressed 20 cm, and a 4.0-kg block is placed on top of the depressed spring. The system is released from rest. How far above ..
A person slowly lowers a 3.6 Kg crab trap over the side of a dock, What torque does the trap exert about the person's shoulder
A 16 kg block is held against a spring, with spring constant k = 25 N/cm. How high will it rise
A bat flying in a cave emits a sound and receives its echo 0.2 second later. Determine how far away is the cave wall
A 0.38-kg cord is stretched between two supports,7.6m apart. When one support is struck by a hammer, What is the tension on the cord
The left end of a long glass rod 8.00 in diameter, with an index of refraction 1.60, is ground to a concave hemispherical surface with radius 4.00. What is the index of refraction of the liquid
Complete the missing information in the tables above showing all working and explanations on a separate sheet. No marks will be given if the working or explanations for your results cannot be identified. Number the equations in your working and cr..
The radius of a coil of wire with N turns is r=0.03m. A counter clockwise current of 4Amp flows through the coil. At a point located 0.005m from the center of the coil.(its inside the coil), the magnetic field is 8.136. Determine N, the number of ..
their debt flotation costs are currently estimated to be 4% of the issue's value. GST's federal-plus -tax rate is 40%. Illustrate what is the dollar floatation cost on the new issue?
In the nineteenth century, astronomers believed that the Sun was slowly shrinking and that the compression of its internal gas was the source of its heat. Given that the Sun's luminosity is approximately 3.8x10^ (33) gm, what is wrong with this idea?..
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