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A steel post 15 cm in diameter and 3 m long is placed vertically and is required
to support a load of 10,000 kg.
(a) What is the stress in the post?
(b) What is the strain in the post?
In a copper wire of diameter 2mm, 3×1023 electrons flow in one second. Calculate the current density magnitude
In a copper wire of diameter 2mm, 3×1023 electrons flow in one second. Calculate the current
a solid conducting sphere with an area of 16m2 has total charge of 4"\\mu C." Determine the electric field through the Gaussian surface
- What causes objects to move and what is the effect on the living or nonliving objects?
A flat circle of radius 20 mm is placed in a uniform electric field of magnitude 20500 m N/C. What us the electric flux through the circle when its face is at 33 degree to the field lines?
A 4.5 C charge requires an 8.0 J to move it from point X to Y, where the potential
difference is 1.5 V. Calculate (a) the potential difference between points X and Y. (b) the
potential at point Y.
A curling stone is given an initial velocity of 18.4m/s across ice rink. If the coefficient of friction between the stone and the ice s 0.054, how far will the stone travel before it comes to a stop.
A=-5i+6j-5k
B=7i+8j+4k
Find A×B
An object moving at 13 m/s slows uniformly with an acceleration of 2.0 m/s2
for a time of 6.0s. Determine a) its final velocity and b) the distance moved in the 6.0 s.
