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Q. A 1300kg sports car accelerates from rest to 80km/h in 7.4s. What is the average power delivered by engine?
Q. The supersonic aircraft Concorde has a length of 63 when sitting on the ground on a typical day when the temperature is 13.00. The Concorde is primarily made of aluminium. In flight at twice speed of sound, friction with the air warms the Concorde's skin and causes the aircraft to lengthen by 21.
A slab of marble is resting on the ground. It weighs 600 N and has the dimensions 0.1m x 0.2m x 1.0m. What is the greatest pressure that the slab can exert on ground.
suppose that no heat is lost to the surroundings, what is the situation when termal equilibrium is reached.
A 1500kg car skids to a halt on a wet road where coefficient of friction = 0.46. How fast was car traveling if it leaves 68m long skid marks.
A falling stone takes 0.28 s to travel past a window 2.2 m tall. From what height above the top of the window did stone fall.
What is the minimum speed you must give the air at the top. find its final kinetic energy.
How much energy is dissipated during the 5 minute interval.
Eight lights are connected in parallel to a 110 V source by two leads of total resistance 2.20. If 240 mA flows through each bulb, what is the resistance of each.
define the effect of inertia on how far each can rolls.
From what height will you have to drop the rock on Earth so that the fall-time on both planets is the same.
A circular disk with the rectangular hole has a radius of 0.540 m and mass of 0.440 kg. It is suspended by a point on its perimeter. The moment of inertia about this point is I_p = 1.7×10-1 kgm2.
A ship sets out to sail to the point 158 km due north. An unexpected storm blows the ship to a point 134 km due east of its starting point. (a) How far (in km) and (b) in what direction (as an angle from due east, where north of east is a positive an..
How to design atrium of a new building
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