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The starship Enterprise leaves a distant earthcolony, which is nearly at rest with respect to the earth. The shiptravels at nearly constant velocity toward earth. When the Enterprise reaches earth 1.08 y has elapsed, as measured on the ship. Clocks in the earth's reference frame show that the voyagelasted 3.23 y.
How far from earth is the colony, as measured in the reference frame of the earth (in light years)?
How far from earth is the colony, as measured in the reference frame of the ship (in light years)?
A coil of 150 turns of wire is in the form of a circle, carries a current of 63 mA, and sits in the center of a dipole magnet, What is the radius of the coils
During heavy rain, a section of a mountainside measuring 3.4 km horizontally, 1.2 km up along the slope, and 0.53 m deep slips intoa valley in a mud slide
A fan at a rock concert is 35m from the stage, where sound intensity level is 125 dB. Her eardrums have a diameter of 8.07mm. How much energy is transferred to each eardrum in one second? (Distance from the speaker to the edge of the stage is 1 m...
A 5.81 10-5 H solenoid is constructed by wrapping 70 turns of wire around a cylinder with a cross-sectional area of 8.10 10-4 m2, Determine the change in the length of the solenoid
The frequency of sound wave from an ambulance is 2,400 Hz. The velocity of sound is 345.0 m/s. find the frequency of the siren heard by the observer
A playground is on the flat roof of a city school, 5.4 m above the street below (see figure). The vertical wall of the building is h = 6.90 m high, Find the vertical distance by which the ball clears the wall.
The magnetic flux that passes through one turn of a 10-turn coil of wire changes to 5.0 Wb from 6.0 Wb in a time of 0.086 s. The average induced current in the coil is 185A. What is the resistance of the wire
A student removes a 10.50 kg stereo from a shelf that is 1.802 m high. The amplifier is lowered at a constant speed to a height of 0.75 m. What is the work done by a) person and b) gravitational force that acts on the amplifier.
An object is placed 5 cm in front of a concave lens of focal length 7 cm. Find the image location by drawing a ray tracing diagram to scale
Consider three charged particles arranged in an equilateral triangle with sides of length d. Find the electric field vector at the triangle's center
A beam of light traveling in a block of glass (n=1.60) is incident on the top surface at an angle of 55° with respect to the normal. What is the maximum possible index of refraction of the oil
Review Interactive Solution 4.41 in preparation for this problem. A 90.0-kg baseball player slides into second base. What is the magnitude of the frictional force
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