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1. If A = (12i - 16j) and B = (-24i+10j), what is the magnitude of the vector C=(2A-B)?
a) 42b) 22c) 64d) 90
2. An archer shoots an arrow with a velocity of 45 m/s at an angle of 50 degrees with the horizontal. What is the height of the arrow at a point 150 meters downrange?
a) 4.7 mb) 47.0 mc) 5.6 md) 56.0 m
The angle of incidence at a solid/liquid boundary is 65.3°, andthe index of refraction of the solid is n = 1.71.(a) What must be the index of refraction of the liquid such that the direction of the light entering the liquid isnot changed?
a parallel-plate capacitor has an area of 4.00 cm2 and the plates are separated by 1.00 mm with air between them. the
imagine a linebacker collides with a stationary quarterback and they become entangled. what will happen to the velocity of the linebacker-quarterback system if momentum is conserved.
Imagine there has been a drastic rise in food-borne illness in the city in which you live. The public lacks the knowledge about proper food safety to stop these problems and they also do not know how to find precise nutritional information to educ..
question waves on a stick a flexible stick 2.0 m long is not fixed in any way and is free to vibrate. make clear
A student sits on a rotating stool holding two 7.00 kg objects. When his arms are extended horizontally, the objects are 0.80 m from the axis of rotation, Find the new angular speed of the student
A 0.105-kg hockey puck moving at 24 m/s is caught and held by a 75-kg goalie at rest. With what speed does the goalie slide on the ice?
An electron passes through a point 3.75 cm from a long straight wire as it moves at 36.1% of the speed of light perpendicularly toward the wire. Find the magnitude of the electron\'s acceleration at that point
A car sits in anentrance ramp to a freeway, waiting for a break in the traffic. What is the acceleration of the car
You are driving east on 8th Street (Tamiami Trail) at a speed of 32. In the rearview mirror, What is the frequency of the siren
A 5kg block is pushed 3 m up a wall by a 90 N force F. Assume that the block starts from rest and that it has an acceleration of 0.5 m/s2. Find the work done by each force acting on the block
A steel ball bearing 8.0 mm in diameter is dropped into a cylinder of glycerin. What is the terminal velocity of the ball bearing
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