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When its coil rotates at a frequency of 280 Hz, a certain generator has a peak emf of 75V. (a) What is the peak emf of the generator when its coil rotates at a frequency of45 Hz? (b) Determine the frequency of the coil's rotation when the peak emf of the generator is 180V.
q1. two small charged metal spheres a and b are situated in a vacuum. the distance between the centres of the spheres
Given that the rotational constant of HF is 20.5cm-1, calculate the bond length of HF molecule
question 2 unequal masses of 1kg and 2kg are connected by a string going over a clamped light smooth pulley.the system
A spherical capacitor contains a charge of 3.40nC when connected to a potential difference of 250V. Calculate the radius of the inner sphere
a 4.6 g bullet leaves the muzzle of a rifle with a speed of 320 ms. what force assumed constant is exerted on the
You are trying to overhear a juicy conversation, but from your distance of 15.0 m , How close should you come
A motorcycle and 58.0 kg rider accelerate at 2.8 m/s2 up a ramp inclined 10° above the horizontal. What is the magnitude of the net force on the rider
Two free charges(+)q and (+)4q are separated by a distance l meters. find the magnitude,sign and location of a third charge which makes the system in equilibrium
Starting from rest, you move with a constant acceleration of 2.1 m/s2 for 15.0 s and then move with an acceleration of -2.1 m/s2 for another 15.0 s. How far do you go during the whole trip
find out the magnitude of their acceleration. If the blocks move determine the magnitude of the tension in the string. If the blocks do not move determine the sum of magnitude of the forces of friction acting on the blocks. Show all the work.
A thin uniform cylindrical turntable of radius 2.5 m and mass 32 kg rotates in a horizontal plane with an initial angular speed of 10 rad/s. Calculate the loss of energy to thermal energy
A bullet of mass 6.3 g is fired horizontally into a 1.2 kg woodenblock at rest on a horizontal surface. The coefficient of kineticfriction between block and surface is 0.25. The bullet stops in theblock, which slides straight ahead for 2.7 m
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