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1. Give an example from real life where is applied Pascal's Principle and one for Bernoulli's Principle.
2. Why a person can lie down (carefully) on a bed of nails, but cannot step on one nail (without being injured)
A block resting on a smooth surface explodes into three pieces. A 465 gram piece travels at 1.7 m/s, a 1999 gram piece travels 0.7 m/s, calculate the mass and direction of the third piece.
a block of mass 2 kg is initially moving with speed 4msec at point a on a smooth inclined plane with andle 60 degrees
A sample of an unknown material appears to weight 300N in air and200N when immersed in alcohol of specific gravity 0.700. What are(a) the volume and (b) the density of the material?
A 50.0-gram ball consists of a plastic spherical shell and a water-filled core. Evaluate what is the density of the plastic
The loop consists of a single turn of flexible conducting wire that is wrapped around a flexible mount such that the dimensions of the rectangle can be changed.
A spaceship is visiting Planet X. While descending to the surface,its rockets produce 25 kN of upward thrust and the spaceship%u2019s speed decreases at a rate of 0.15 m/s2. What is the mass of the spaceship
The plates of a parallel-plate capacitor are 2.50mm apart, and each carries a charge of magnitude 85.0nC. What is the potential difference between the plates
A 3.00 x 102-kg piano is being lifted at a steady speed from ground level straight up to an apartment 10.00 m above the ground. The crane that is doing the lifting produces a steady power of 4.00 x 102 W. Explain by how much time does it take to li..
A child, hunting for his favorite wooden horse, is running on the ground around the edge of a stationary merry-go-round, Find the shortest time it takes for the child to catch up with the horse
The change in internal energy of a gas is less than the work done on the gas, What must have happened in the process
Take an idealized fiber material as being elastic-perfectly plastic. In an aligned fiber system, take the matrix phase as elastic. What would be the macroscopic stress-strain characteristics of the composite, regarding a state of uniaxial tension ..
Discover how much energy per unit time a roller bladder loses by radiation from her body. Her skin temperature is 35°C and the air temperature is 30°C. Her surface area is 1.2 m 2 , of which 75% is exposed to the air. Assume skin has e = 0.97.
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