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Question. A pulsar is a rapidly rotating neutron star that continuously emits a beam of radio waves in a searchlight manner. Each time the pulsar makes one revolution, the rotation beam sweeps across the earth, & the earth receives a pulse of radio waves. For one particular pulsar, the time between two successive pulses in 0.033 s. Find the average angular speed (in rad/s) of the pulsar.
A bus makes a trip according to the position time graph shown in the drawing. Find the average velocity (magnitude & direction) of the bus during each of the segments labelled A, B, & C?
Find an angular velocity of the tire at the marker. Find also the linear speed of the point of contact of the tire with the pavement at the marker.
A 5.2 x10^2-newton girl takes 10. Seconds to run up two flights of stairs to a landing, a total of 5.0 meters vertically above her starting point. What power does the girl develop during her run.
A brick is thrown upward from the top of a building at an angle of 45° to the horizontal and with an initial speed of 10 m/s. If the brick is in flight for 2.8 s, how tall is the building.
A simple harmonic oscillator consists of the block of mass 1.90 kg attached to a spring of spring constant 196 N/m. while t = 3.00 s, position and velocity of the block are x = +0.129 m and v = +3.415 m/s.
Question on center of gravity Discover speed of each block
A 790-kg object and an 889-kg object are separated by 11.0 m. At what position (from the less massive object) can the 260-kg object be placed so as to experience a net force of 10 N towards the less massive object.
A puddle holds 150 grams of water. If .50 grams of water evaporates from the surface, what is the approx temperature altering of the remaining water.
A 60kg bicyclist rides his 7.8kg bicycle with a speed of 16m/s. How much work must be done by the brakes to bring the bike and rider to a stop.
A rifle with the barrel length of 62cm fires a 12g bullet with a horizontal speed of 380m/s. The bullet strikes a block of wood and penetrates to a depth of 14cm. What resistive force (assumed to be constant) does the wood exert on the bullet? How lo..
What is an index of refraction of the liquid
What is wave number
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