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A power boat of mass 500 kg is cruising at a constant speed of 8.9 m/s. The propeller provides a drive force of 765 N. The driver of the boat shuts off the engine, and the boat coasts to a halt. Assume -- contrary to fact -- that the resistive force due to the water is constant, independent of the boat's speed.
(a) How far does the boat coast? (b) How much time does it take for the boat to come to rest after the engine is turned off?
Peltier effect (J.C.A. Peltier; 1834) The change in temperature generated at a junction among two dissimilar metals or semiconductors while an electric current flow through the
Suppose that the x rays are emitted from a focal spot isotropically. The photon flux is 3.28 x 10 6 photons mm -2 sec -1 at a distance of 0.75 m from the focal spot. What is the
The average energy needed to release a nucleon from the nucleus is known as binding energy per nucleon. Binding energy per nucleon diffrence Stability of nucleus
Noether theorem (Noether): A theorem which revels that symmetries are what gives increase to conserved quantities. For example, translational symmetry (the fact that the laws
Define the Intensity of the laser in short. Intensity: a. Lasers are intense and bright light sources. It is due to coherence and directionality. b. The intensity is e
Write down the differential equation for a simple harmonic oscillator subjected to a damping force proportional to the velocity (v) of the oscillator and the periodic force of angu
explain specific latent heat of fusion with formula
Q. The half life of radon is 3.8 days. Calculate mean life. Half Life Period HLP T ½ = 0.6931 / λ = 0.6931 τ therefore Mean life τ = T ½ / 0.
when is the body said to be at rest
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