2017年7月27日 · If the jet is flying at a speed of 720 km/hr, find the constant height at which the jet is flying. OR At the foot of a mountain the elevation of its summit is 45°. After ascending 1000 m toward the mountain up a slope of 30 o inclination the elevation is found to be 60 o. Find the height of the mountain.

2012年7月26日 · Let us assume that the ball bounced back in the direction exactly opposite to what it had came. mass of ball, m= 0.5 kg Intial momentum: p1 = 0.5 x 10 = 5 kgm/s final momentum: p2 = 0.5 x (-20) = 1 - vnxuhree

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2020年5月11日 · Question: From the top of a cliff 50m high, the angle of depression of a buoy is 30 degrees. Calculate to the nearest meter, the distance of the buoy from the foot of the cliff. Solution: Let AB be t - dw8lpoee

A person weighs 60kg . the area under one foot of the person is 180cm^2.find the pressure exerted on the ground by the person. Asked by Technoin9 | 22 Nov, 2018, 18:43: PM Expert Answer

(a) A spanner used to tighten or loosen a nut, has a long handle to produce larger turning moment. (a) It is easier to turn a steering wheel of large diameter because the larger the diameter, the greater the perpendicular distance from the axis of rotation, and thus less force is required to generate the same amount of turning effect as a steering wheel of small diameter.

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2023年3月2日 · A large number of people live in the Northern plains because: They are flat and levelled. They provide fertile land for cultivation. They are formed by alluvial deposits brought by the rive - d10m5h11

2010年10月14日 · Dear student, During emergency situations, adrenal gland releases adrenaline hormone which helps in quick actions to deal with the emergency situation. It induces 'fight or flight action' by the body - ca1ro2tt

2017年7月26日 · Two poles of height p and q metres are standing vertically on a level ground, a metres apart. Prove that the height of the point of intersection of the lines joining the top of each pole to the foot of the opposite pole is given by metres.