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The Stoplight- 1-Dimensional Kinematics
A blue car moving at a constant speed of 10 m/s passes a red car which is at rest. This occurs at a stoplight the moment in which the light turns green. The clock is reset to 0 seconds and the velocity-time data for both cars are plotted and collected. The red car accelerates from rest at 4 m/s/s for three seconds and then manages a constant speed. The blue car manages a constant speed of 10 m/s for the whole 12 seconds.
A particle with mass m = 2:5 is moving along a straight trajectory. The distance covered by a particle is described by the function S(t) = t 3 + 2t 2 , where t > 0 is the time
A certain radioactive substance has a half-life of 40 minutes. How much of an original 100 grams substance will remain after 2 hours? solution) m= m0/2t/T m=100 gms.. t=2 hours
The pump shown in the figure adds 20 kW of power to the flowing water. The only significant loss is that which occurs across the filter at the inlet of the pump. Determine the head
Maximum Range Suppose a cannonball launched from a cannon at 3 various launch angles - 30-degrees, 45-degrees, and 60-degrees. The launch speed is held constant; just the angle
Magnitude of K.E. in an orbit is equal to: (1)Half of the potential energy (2)Twice of the potential energy (3)One fourth of the potential energy (4 ) None
Explain logarithmic decrement? Evaluate the ratio of nth amplitude with 1st amplitude in case of under damped oscillation.
Three similar coils, each having a resistance of 8 and an inductive reactance of 8 are connected (a) in star and (b) in delta, across a 415V, 3-phase supply. Measure for
electric field
A particle is projected from ground with velocity 40sqrt2m/s.find- a)velocity and b)displacement of particle after 2sec .Take g=10m/s^2 Ans) velocity v=u+at a=-g v=40√2-10*2
Two concentric conducting shells a and b are of radii R and 2R. A charge +q is centred at their center. Shell b is then earthed and a is given charge q. Find the charge on outer su
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