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Two cars collide at an intersection. Car A, with a mass of 2000 kg , is going from west to east, while car B, of mass 1400 kg , is going from north to south at 13.0 m}/ s . 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 65.0degrees 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 A going just before the collision?
Suppose a news report stated that starship Enterprise had just returned from a 5 year voyage while traveling at 0.81c. how much time elapsed on the ship
A person runs with speed v toward a tunnel of length L, When the person and the photon eventually meet, the person's location is a fraction f along the tunnel. What is f
A 0.00275-kilogram air inflated balloon is given an excess negative charge, q1 = -3.50 × 10-8 C, by rubbing it with a blanket. what polarity of charge must the rod possess
two wooden blocks rest on an inclined plane making an angle of 30 degrees to the horizontal. the coefficient of friction between the block and plane for the first uk= 0.20, how fast is each block moving when it reaches the bottom
A boy runs 3.00 blocks north, 4.00 blocks northeast, and 5.00 blocks west. Determine the length and direction of the displacement vector
an electric motor lifts an elevator car at the constant speed of 2 m/s. The power consumed by the motor to perform this task is 40000 W. what is the mass of the elevator
suppose you have a heat engine operating between 230 C and 100.0 c. it achieves 20.0% of the maximum possible efficiency(carnot Efficiency). what energy input will enable the engine to perform 12.0 kJ of work?
What minimum coefficient of static friction is required? Is the reply you found reasonable? In other words, is he probable to stay on the merry-go-round.
In what ways is the transducer in medical ultrasound a 'speaker' & 'microphone?', What is the broadest definition of a 'transducer?'
An astronomical telescope is designed with an overall magnification of 80x. The objective has a focal length of 98.0 cm. How far should the eyepiece be from the objective
convert 25mus into ams bmihthe kinetic energy of a car of mass m moving with velocity vis emv22. if m1000kg and v6ms
A "door closer" is attached to the door and the top of the door frame.When the door is open and at rest, the door closer exerts a torque of 4.8 {rm N} cdot {rm m}. What is the least force that you need to apply to the door to hold it open.
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