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QUESTION 1 A car of mass 800 kg is pulling a trailer of mass 300 kg up the slope of angle ? to the horizontal where sine ? = 1/200. Resistance to motion (apart from gravity) is 1.
In whole analog to the work energy theorem for the translator motion, it might be stated for rotational motion as: Δ W rot = K rot The net rotational work given by the force
a boy throws a ball of mass 20 kg vertically upwards.it raises to a maximum height of 100 m.at what height will the kinetic energy be reduced to 70%
Diffraction is the spreading of light that takes place when it pass through a thin slit or small hole or passes by an obstacle Answer: Diffraction is the spreading of any k
Why population inversion is essential to achieve in lasing action? a) Define zener breakdown. b) What is called nanomaterials?
A monochromatic beam of unpolarised light is incident on a glass slab. The reflected ray is found to be purely plane polarized. Evaluate the angle between the reflected and the ref
The atmospheric pressure at any position is numerically similar to the weight of a column of air of unit cross-sectional area extending from that position to the top of the atmosph
Second law of black hole dynamics Along with black-hole interactions, or interactions among normal matter and black holes, the total of the surface areas of all black holes i
Q. In the given circuit, calculate the potential differences across each resistor Solution : i) R s = R 1 + R 2 + R 3 = 10Ω ii) Current in circuit I = V/R s
How do I find the momentum, velocities and energy of both vehicles as they leave the impact point, the energy transferred during the collision and the momentum and energy of the ve
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