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Students often face hard-to-solve and mind-numbing physics problems, that cause a lot of distress into the studying process. Not everyone can cope with the hardships physics problems cause, and many end up with a bunch of physics questions that need to be solved. Our service is the solution provider for your physics questions. Ask your question here and get physics answers that would help you do your assignment in the quickest way possible with maximum results. Our experts will gladly provide physics answers for your benefit.

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If the random error in the arithmetic mean of 50 observations is x, then the random error in the arithmetic mean of 150 observations would be ________ ?
Answered!
If momentum of an object is increased by 10% then its kinetic energy will increase by _________?
Answered!
the mass of solid cube is 200g and each edge has a length of 6.15 cm. determine the density p of the cube.
Answered!
When the speed of a source is less than the speed of sound in a medium, the wavefront of the wave is –
A) Cylindrical B) Spherical C) Conical D) Plane

When the speed of a source is GREATER than the speed of sound in a
medium , the wavefront of the wave is –
A) Cylindrical B) Spherical C) Conical D) Plane

When the speed of a source is EQUAL to the speed of sound in a medium, the wavefront of the wave is –
A) Cylindrical B) Spherical C) Conical D) Plane
In Progress...
1)A 1kg box starts up a 2 degrees incline with a speed of 5m/s. How far will the box slide up the incline if the coefficient of kinetic friction between the box and incline is 0.4
2)A disk starting from rest rotates about its central axis with constant angular acceleration.In 3s, it rotates 27 rad .During that time, determine a)the angular acceleration
b)the instantaneous angular velocity of the disk at the end of the 3s
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A 4kg ball having velocity (7i+6j) m/s collides and bounces off a wall with a velocity of (-3i+6j) m/s. The ball is in contact with the wall for 0.01 s.In unit-vector notation, what are a) the impulse and b)the average force on the ball from the wall
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Object A with a mass of 2kg, a velocity of 7m/s and object B with a mass of 9kg and a velocity of -5 m/s are moving towards each other along the x axis.They collide and stick together after collision.Determine the kinetic energy lost during the collision.
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The property of light waves that determines its brightness



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calculate the linear acceleration
http://oi58.tinypic.com/mczvyg.jpg
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Basic wave theory predicted that a blackbody should put out more energy at higher frequencies. In reality, above the peak frequency a real blackbody emits less radiation with increasing frequency. Planck was able to explain this contradiction by assuming that light energy is quantized and that higher frequencies of light have a bigger quantum. Explain why light energy being quantized this way means that a blackbody will emit less energy at higher frequencies.
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