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Two cars collide at an intersection Car A has a mass of 1200 kg and car B has a mass of 1500 kg. On impact, the wheels of both cars lock and the cars slide (μk = 0.2). After impact the cars become entangled and move as a single unit a distance of 10 m at an angle θ= 60 degree. Determine the speeds of the cars VA and VB just prior to the impact.
Robert has just bought a new model rocket, and is trying to measure its flight characteristics. how much work is done by the drag force on the rocket during its ascent
If a car is travelling at a speed equal to a moving state train and moves east in a direction in the opposite side that contains railings that are broken, determine how long the car will reach a maximum speed
Suppose the river is flowing east at 3 m/s and the boat is traveling south at 4 m/s with respect to the river, Find the speed and direction of the boat relative to Earth
A titanium rod (0.5 m) and an aluminum (0.5 m) rods are connected, and fixed to the right side of the wall. Find the temperature at which the total length is increased by 1 mm
A 20.0 kg wood ball hangs from a 1.3 m long wire. The maximum tension the wire can withstand without breaking is 300 N. A 0.70 kg projectile travelling horizontally hits and embeds itself in the wood ball.
A steel ruler is calibrated to read true at 17.5°C. A draftsman uses the ruler at 38.5 °C to draw a line on a 38.5°C copper plate. Find to what temperature should plate be cooled
Use Newtons form of Keplers third law to determine the mass of the central black hole - galaxy orbit a central supermassive black hole.
A car and its suspension system act like a mass-spring system with m= 1200kg and k= 58 kN/m. Its worn-out shock absorbers provide a damping constant b= 230 kg/s. The car hits a pothole that sets it oscillating. How many oscillations will it make befo..
A tall tree is growing across a river from you. You would like to know the distance between yourself and the tree as well as its height but you are unable to make the measurements directly. However, by using a mirror to form an image of the tree a..
A hand exerciser utilizes a coiled spring. A force of 85.0 N is required to compress the spring by 0.0151 m. Determine the force needed to compress the spring by 0.0503 m.
A highway is to be built between two towns, one of which lies 50.0 km south and 82.0 km west of the other. find at what angle would this highway be directed
A drunk driver in a 1700 kg car plows into a 1300 kg parked car with its brake set. how fast was the drunk going just before the collision
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