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A spaceship(Mo = 10,000 kg & Lo = 42m) is observed to be 42.2m long while traveling towards earth. Determine the speed of the space ship.
A hunter who is a bit of a braggart claims that, from a distance of 1.5 km, he can selectively shoot either of two squirrels who are sitting 14 cm apart on the same branch of a tree. Determine the diameter of the pupils of his eyes
A light bulb has a resistance of 280 ?. It is connected to a standard wall socket (120 V rms, 60.0 Hz).Determine the current in the bulb
A chair of weight 135 lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of = 38 directed at an angle of 42 below the horizontal and the chair slides along the floor.
One billiard ball is shot east at 3.5 m/s. A second, identical billiard ball is shot west at 2.1 m/s. The balls have a glancing collision, not a head on collision, deflecting the second ball by 90 degrees and sending it north at 1.8 m/s.
Find the speed of water emerging from the hole if the leak is 2.9 below the surface of the water
A dentist's drill starts from rest. After 2.90 s of constant angular acceleration it turns at a rate of 2.0 multiply.gif 104 rev/min. Determine the angle (in radians) through which the drill rotates during this period
A ball is launched from the top edge of a building 32.8 m high at a speed of 23.7 m/s at an angle of 15.0 degrees above the horizontal. Find the horizontal distance from the building at which the ball lands
A boxer receives a horizontal blow to the head that topples him over. How long would it take him to hit the floor if he continued with the same angular velocity
Suppose that a binary star system consists of two stars of equal mass. They are observed to be separated by 400 million kilometers and to take 3.0 Earth years to orbit about a point midway between them. What is the mass of each?
A spaceship moving away from Earth at 0.67 c fires a particle beam toward Earth, with speed 0.74 c relative to the ship. find At what speed does Earth receive the particles
A proton is initially at rest at a point where the potential is 507V. Sometime later the proton is at a point where the potential is 187V. If no force other than the electrostatic force acts on the proton, what is its final kinetic energy.
If the top coil were rotated 90 degrees about a vertical axis through the center of the coil so it is perpendicular to the balance coil, how would the results of the experiment change
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