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Two cars collide at an intersection. Car , with a mass of 1800 , is going from west to east, while car , of mass 1300 , is going from north to south at 16.0 . As a result of this collision, the two cars become enmeshed and move as one afterwards. In your role as an expert witness, you inspect the scene and determine that, after the collision, the enmeshed cars moved at an angle of 65.0 south of east from the point of impact.
A. How fast were the enmeshed cars moving just after the collision?
B. How fast was car going just before the collision?
470 cm3 of water at 82°C is mixed with 95 cm3 of water at 8°C. Calculate the final equilibrium temperature, Calculate the final equilibrium temperature assumning no heat loss after mixing occurs
A fictional spaceship accelerates at a constant rate of 0.107 m/s2. What would be its final velocity
A 200-W infrared laser emits photons with a wavelength of 1.05 multiply.gif 10-6 m, and a 200-W ultraviolet light emits photons with a wavelength of 3.51 multiply.gif 10-7 m. What is the energy of a single infrared photon
a river has a 5m/s current due east. With respect to the water, the boats velocity is 12m/s at 60 degress north of east. What is the velocity of the boat relative to the earth
Carbon tetrachloride (n=1.46) is poured into a container made ofcrown glass (n=1.52). what is the angle of the corresponding refracted ray
A package of mass m is released from rest at a warehouse loading dock and slides down a 3.0-m-highfrictionless chute to a waiting truck. To what height does the package of mass m rebound
Using and Atwood machine with masses m1 and m2, at first with m1 a distance 2h above m2, what is the speed of either mass they pass each other? Make use of energy to solve (hint they cross halfway between the starting positions of the two masses).
A block of mass m1 = 1.75 kg and a block of mass m2 = 5.90 kg are connected by a massless string over a pulley in the shape of a solid disk having radius R = 0.250 m and mass M = 10.0 kg. These blocks are allowed to move on a fixed block-wedge of ..
LASIK eye surgery uses pulses of laser light to shave off tissue from the cornea, reshaping it. What is the power of one laser pulse
An organ tube is open at one end. A certain harmonic produced by the tube has a frequency of 450 Hz. The next higher harmonic has a frequency of 750 Hz. The speed of sound in air is 343 m/s. i. What is the integer n that describes the harmonic whose ..
A boeing 747 jet with a wingspan of 60.0 m is flying horizontally at a speed of 300 m/s over Phoenix, What voltage is generated between the wingtips
A 750 air-track glider attached to a spring with spring constant 10.5 is sitting at rest on a frictionless air track. What is the amplitude of the subsequent oscillations
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