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The angular position of a point on the rim of a rotating wheelies given by theta=4.0t -3.0t2 +t3, where theta is in radians and tis in seconds. What are the angular velocities at a) t=2.0sb) t=4.0s? c) what is the average angular acceleration for the time interval that begins at t=2.0s and ends at t=4.0s/ What are the instantaneous angular accelerations at d) the beginning and e) the end of this time interval?
a lead bullet moves horizontally with a velocity of 130ms and embedded into a cement wall after collision. if the specific heat capacity of lead = 130J/KgC and all heat produces is
In an electric field difference among potential energy of two points A and B is described as equal to the amount of work done (by external agent) in moving a unit positive charge f
What is Modern view Modern view : It objects tend to remain in their initial state; force is needed to change motion. Resistance to alters in motion is known as inertia.
a) A positive point test charge q 0 is placed at the midpoint p among the two equal positive charges q. What forces acts on it at or near this point p? b) Two charges 1X10 -
The signal which has only two values. I.e. either a constant high value of voltage or zero value is known as digital voltage signal
Projectile Motion - Falling to the Ground Projectile motion is the path followed by a ball when you throw it and it falls to the ground. You can change how hard you throw it (w
how zeener diode work as a regulator?
Eotvos law of capillarity (Baron L. von Eotvos; c. 1870): The surface tension gamma of liquid is associated to its temperature T, the liquid's critical temperature, T*, & its
An 82-kg receiver, moving 0.75 m/s north, is tackled by a 110.0-kg defensive lineman moving 0.15 m/s east. The football players hit the ground together. Measure their final v
how to solve vector quantity, with solutions and drawing
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