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Calculating the Reynolds number.
find out Reynolds number if water at 15°C is flowing through a 3cm diameter pipe with a velocity of 50 cm-1. Is flow turbulent or laminar?
(At 15°C water has density of 999.1 kgm-3, and viscosity 1.14 x 10-3 Nsm-2)
Physics, Academics
Here is another "oldy by goody". The gravitational force on the Moon due to the earth is only about one half the force on the Moon due to the sun. Why isn't the Moon pulled away from the Earth? Looking at the formula for ...
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An astronaut who is 30 years old gets into a spaceship and travels to the star 51 Pegasi, which is 50 light years away (this is the closest star to earth that has a planet orbiting it). The spaceship quickly reaches its ...
A 50 kg crate is at rest on a level surface the coefficients of friction are 0.3 and 0.4,what is the normal force acting on the crate, a man begins pushing horizontally on the crate how much force must the man exert to s ...
During an Adiabatic compression in an engine, the volume is reduced to 0.0625 of its initial value. Heat is then added at constant pressure until the initial volume is attained again. The cycle is completed by a constant ...
1) Given the equation x = 0.5 cos (0.75 π t), what is the amplitude of the wave? 2)Given the equation x = 0.5 cos (0.68 π t), what is the angular frequency of the wave? (Give the numeric value to 3 sig. fig.) 3) Given th ...
In your own words, describe each of the static error constants and provide a mathematical formulation to accompany your description.
Stress σ is the force per area, i.e. σ=F/A. Alternatively, this can be expressed σ=FA^-1. The dimensions and units of force follow from Newton's 2nd law and are provided in example E1. Area has the dimension L^2. The SI ...
Which of the following is NOT A TRUE STATEMENT about atomic structure? a, The photon energy for transitions between two energy levels ( e.g. between the ground state and the first excited state) is different for absorpti ...
Differentiate between tractive coefficient and drawbar pull as used in mechanics of chassis?
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