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A base on Planet X fires a missile toward an oncoming space fighter. The missile's speed according to the base is 0.87 c. The space fighter measures the missile's speed as 0.98 c. How fast is the space fighter traveling relative to Planet X?
A bicycle racer sprints at the end of a race to clinch a victory. The racer has an initial velocity of 13.0 m/s, What is his final velocity
A piano tuner stretches a steel piano wire with a tension of 964N. What is the frequency of its fundamental mode of vibration
During WWII some paratroopers landed in gliders instead of dropped by parachute. The gliders had no power of their own, Find the lift force provided by the glider's wings
Two conducting spheres, one of radius 0.010 m. and the other of radius 0.170 m., each have a charge 3.00E-08 C. and are very far apart. find the final potential (in volts) in each sphere
A 2.40-kg object attached to a spring moves without friction (b = 0) and is driven by an external force given by the expression F = 3.20sin(2?t), Find the resonance angular frequency of the system
You have a converging lens with a focal length of 0.85 m, and wish to construct a refracting telescope with an angular magnification of âˆ'45. what should be the focal length of the second lens
A red car and a green car, identical except for the color, move toward each other in adjacent lanes and parallel to an x axis. What is the initial velocity of the green car
A billiard ball moving at 5 m/s strikes a stationary ball of the same mass. After the collision, find the struck ball's velocity (magnitude and direction) after the collision
A ladder is leaning against a vertical wall. The coefficient of friction between the ladder and the horizontal surface is u1=1.265, Determine the maximum angle with the vertical the ladder can make
An electron with a speed of 6.00*10^6 m/s collides with an atom The collision excites the atom from its ground state (0eV( to a state with an energy of 3.70 eV. What is the speed of the electron after the collision?
A mortar crew is positioned near the top of a steep hill. Enemy forces are charging up the hill and it is necessary for the crew to spring into action. find How long will the mortar shell remain in the air
A point source of electromagnetic waves emits waves uniformly in all directions. What is the power output of the source
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