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Which of the following equations are dimensionally correct?
(a) vf = vi + ax
(b) y = (2 m)cos(kx), where k = 2 m-1.
a ball of mass 1.34 kg is attached to a vertical rod by two strings. the top string is 1.60 m long and makes a 30deg
a) What is the tensile load f (N per m length of the weld) carried by the weld?
A telescope for astronomy view has an objective lens 180[mm] diameter with focal length 2000[mm], What magnifications does each provide
a moving 4.30 kg block collides with a horizontal spring whose spring constant is 346 nm.a the block compresses the
On an essentially frictionless, horizontal ice rink, a skatermoving at 2.0 m/s encounters arough patch that reduces her speed by 49% due to a friction force that is 26% of her weight. Use the work—energy theorem to find the length of this rough pa..
Three spheres, each have a charge of 3.00 μC, are arranged in a line, with sphere 2 in the middle. Find the speed of each sphere when they are far apart
No heat transfer takes place between the argon and the surrounding atmospheric air, which is at T0 300 K and P0 100 kPa. Determine (a) the useful work output, (b) the exergy destroyed, and (c) the reversible work for this process.
1 calculate the per capita energy use for china and india. the populations of each country should be obtained from
The first stage of a space vehicle consumed fuel and oxidizer at the rate of 1.85 104 kg/s, with an exhaust speed of 3.30 103 m/s. Calculate the thrust produced by this engine
If you ignore the weight of the bar itself, how far from the left end of the barbell is the center of gravity? Express your answer using two significant figures
consider a 3-dimensional ideal gas of n particles at temperature ti with an initial volume vi. you adiabatically
Car accelerates linearly at 25 ft/s2 for 2 second. It then drives for 10 seconds at that speed. Finally decelerates to a stop linearly in 3 seconds. What is the equation of this velocity function
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