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A man leaves the garrage in his house and drives to a neighbouring town which is twenty kilometres away from his house on sight-seeing. He returns home to his garrage two hours after. What is his average velocity from home in km/h?

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Beaker A contains water at a temperature of 15 Celsius. Beaker B contains water at a temperature of 37 Celsius. which beaker contains water molecules that have greater average kinetic energy?

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What is the difference between a concentrated load and a uniformly distributed load?

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a particle moves along the side of a square of length 'l' starting from A and reaches the opposite corner C by travelling from A to B and from B to C.if the time taken is 't',the average velocity of the particle is?

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a body moving with uniform acceleration travels a distance Sn=(0.4n+9.8)m in nth sec. find the initial velocity of the body in ms-1?

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The moon rotates on its axis once every 27.3 days. Calculate through how many degrees it will rotate about its own axis in six hours?

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How big could a bubble of air and water be in zero gravity? Assume air surrounds and fills a bubble of water.

I am designing an all water planetoid for a new science fiction novel I am writing. The Planetoid is a spherical bubble of water filled with air, and covered by a sufficiently thick atmosphere to prevent evaporation into space. What could the dimensions of this bubble be? Assume that artificial gravity can be used to generate a force of one gravity at the outer surface. The bubble is also about 300 meters thickness maximum. The shell thickness is 300 meters, the diameter is the unknown. The gravity generators are at a depth of 150 meters.

I am designing an all water planetoid for a new science fiction novel I am writing. The Planetoid is a spherical bubble of water filled with air, and covered by a sufficiently thick atmosphere to prevent evaporation into space. What could the dimensions of this bubble be? Assume that artificial gravity can be used to generate a force of one gravity at the outer surface. The bubble is also about 300 meters thickness maximum. The shell thickness is 300 meters, the diameter is the unknown. The gravity generators are at a depth of 150 meters.

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a boat takes 2 hours to travel 8km up and 8km down the river when the water was still.how much time does the boat take to make the same trip when the river starts flowing at 4kmph ?

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A ball is travelling with uniform translatory motion. This

means that

(a) it is at rest.

(b) the path can be a straight line or circular and the ball travels

with uniform speed.

(c) all parts of the ball have the same velocity (magnitude and

direction) and the velocity is constant.

(d) the centre of the ball moves with constant velocity and the

ball spins about its centre uniformly.

means that

(a) it is at rest.

(b) the path can be a straight line or circular and the ball travels

with uniform speed.

(c) all parts of the ball have the same velocity (magnitude and

direction) and the velocity is constant.

(d) the centre of the ball moves with constant velocity and the

ball spins about its centre uniformly.

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Calculate the molar thermal capacity Cv,the ratio

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