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A boat can travel at a speed of 3 m s-1 on still water. A boatman needs to cross a river whilst covering the shortest possible distance. In what direction should he row with respect to the bank if the speed of the water is
(i) 2 m s-1,
(ii) 4 m s-1
Suppose that the speed of the water is the similar everywhere.
A 32.53 N light hangs at equilibrium from two cables at angles 78.3 and 60.2 with respect to the ceiling. What is the tension in the first cable?
p-type semiconductor: Consider a trivalent impurity such as Gallium (Ga, Z = 31) is doped in a pure semiconductor germanium (Ge, Z = 32). Each Ga atom forms three covalent bonds
what are unlike parallel forces with example?
A basketball player spins a basketball with a radius of 15 cm on his finger. The mass of the ball is 0.75 kg. What is the moment of inertia about the basketball?
what is constant
what is the principle on which deflection magnetometer work?
Writing a paper on physics topic, select any of topic of your choice
If small test charge is taken as positive than why measured value of electric intensity be somewhat less than the actual value of elctric intensity and vica versa
Gauss' law for magnetic fields (K.F. Gauss) The magnetic flux by a closed surface is zero; no magnetic charges present; in differential form, div B = 0.
How is energy transformed in windmills? Essentially what occurs is that as the energy from the wind rotates the vanes of the mill, coils of wire move inside a permanent magnet
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