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A sling shot obeying hookes law is used to launch pebbles vertically into the air. You observe that if you pull a pebble back 11.1cm against the elastic band , the pebble goes 5.2m high. Assuming air drag is negligible, how high will the pebble go if you pull it back 22.2cm instead. B) how far must you pull it back so it will reach 10.4m If you pull a pebble that is twice as heavy back 11.1cm how high will it go?
a scanning electron microscope operating at an accelerating voltage of 10 kv accelerates electrons to 20 of the speed
A proton moving with a velocity 3×105 ms-1 enters a magnetic field of 0.3 T, at an angle of 30? with the field. What will the radius of curvature of its path be (e/m for proton ˜ 108 C kg-1 )?
An object is dropped from rest from a height of 3.9 107 m above the surface of the Earth. If there is no air resistance, what is its speed when it strikes the Earth
What you need to do is to analyze these matches, and research these companies, and write the consolidation if they need to, and the potential opportunities.
A system performs 351 J of work on its surroundings while losing 133 J of internal energy. Decide the heat transferred to the system through this process.
An airline pilot pulls her 12 kilogram roll aboard suitcase along the ground with a force of 25.0 Newton for 10.0 m. Find how much work does she do over the ten-meter distance
What is the stopping distance when the surface is dry and the coefficient of friction is 0.620.
A 15.0-µC particle with a mass of 2.80 10?5 kg moves perpendicular to a 1.01-T magnetic field in a circular path of radius 28.0 m. How long will it take the particle to complete one orbit
The diffraction pattern shown in the figure is produced by passing laser light ( = 620 nm) through a single slit and viewing the pattern on a screen 1.84 m behind the slit, What is the width of the slit
An astronaut is traveling in a space vehicle that has a speed of 0.515c relative to Earth. The astronaut measures his pulse rate at 69.0 per minute. What pulse rate does the Earth observer measure
An inductor has an inductance of 0.013 H. The voltage across this inductor is 20 V and has a frequency of 470 Hz. What is the current in the inductor
In applying the loop rule, as you go around a loop, if you are following a current across a resistor then the voltage increases or decreases across the resistor
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