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| Questions:
TimeLeft: Posted: |
Physics
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A stone falls from a ledge and takes 16 seconds to hit the ground. The stone has an original velocity of 0 m/s. How tall is the ledge? more... |
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Dec 27th |
How do I find the specific heat of a metal given:
mass=90.8g
boiling temp=101.4 C
cooling temp=20 C
more... |
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Dec 22nd |
**Honestly, I don\'t need a detailed, step by step answer. Let me know which formulas I should use/ point me in the right direction.
T more... |
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Dec 1st |
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A 0.5kg brass of initial temperature of 100C was placed in water of mass 0.08kg.if the final temperature of the mixture is 50C.calculate the heat loss more... |
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Oct 8th |
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A soldier of parachute regiment has been dropped by a plane flying at an angle 30° with -ve X-axis and at constant speed 200m/s.If the plane was more... |
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Oct 7th |
5. William Thomson (later to become Lord Kelvin) tells of a chance meeting with Joule in 1847
at Mont Blanc. Joule was on his honeymoon. He had wi more... |
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Sep 22nd |
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jack and jill exercise in a 25.0m long pool. Jack swims 9 lenths of the pool in 2 min 16.7 seconds . Jill swims ten lenths in the same time interval. more... |
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Sep 21st |
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jack and jill exercise in a 25.0m long pool. Jack swims 9 lenths of the pool in 2 min 16.7 seconds . Jill swims ten lenths in the same time interval. more... |
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Sep 21st |
A ship floats on water send a sound when
it was 900 m away from a mountain & hears a sound after 6 seconds if the velocity of the sound was more... |
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Aug 23rd |
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What is regelation more... |
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Apr 25th |
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if the amplitude of the sound vibration is 8 meters ,how much loud is the sound? more... |
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Apr 24th |
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if the amplitude of the sound vibration is 8 meters ,how much loud is the sound? more... |
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Apr 24th |
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The _______ of a sound wave is defined as the amount of energy passing through a unit area of the wave front in a unit of time more... |
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Apr 15th |
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the wavelenght of a wave is the distance between more... |
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Mar 18th |
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Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 402 N and F2 = 356 N. (Assume up and to the righ more... |
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Mar 9th |
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