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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?
A single mass m1 = 4.5 kg hangs from a spring in a motionless elevator. The spring is extended x = 15.0 cm from its unstretched length. find the force the bottom spring exerts on the bottom mass
You want to produce a magnetic field of magnitude 5.50×10?4T at a distance of 4.00×10?2m from a long, straight wire. What current is required to produce this field
Calculate the gradient of V in each region
Suppose you wish to make a solenoid whose self-inductance is 1.7 mH. How many turns of wire are needed
A large capacitance of 2.00 mF is needed for a certain application. What is the maximum voltage that can be applied
A 5.0 gram piece of Styrofoam carries a net charge of - 5.0 X 10-6 C and floats above the center of a large horizontal sheet of plastic that has a uniform charge density on its surface. What is the charge per unit area on the plastic sheet?
An 880 N box is pushed across a level floor for a distance of 5.0m with a force of 440N. How much work was done on the box
A 130kg astronaut (including space suit) acquires a speed of 2.55m/s by pushing off with his legs from a 2000kg space capsule. What is the change in speed of the space capsule
A light plane is headed due south with a velocity of 157 km/h relative to still air. After 1.00 hour, the pilot notices that they have covered only 121 km and their direction is not south but southeast (45.0^circ).
An airplane is descending at an angle of 20 deg with respect to the horizontal when it drops a bomb, determine the range (horizontal distance traveled) of the bomb and the velocity at which it hits the ground.
A severe thunderstorm dumped 2.4 in of rain in 30 min on a town of area 42 km2. What mass of water (in kg) fell on the town
When driving west toward the Rocky Mountains, you see a peak 2.8 degrees above the horizon. Your GPS gives your current elevation as 1500 m , and according to the map, you're 22.5 km (horizontally) from the peak. Find the peaks elevation.
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