Questions asked by Andy Y.
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Is y=(2m)*cos(k*x) dimensionally correct, where k = 2m^-1?
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Is 2pi*sqrt(l/g) reducable to a dimension of time?
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What are the dimensional units of A and B if a volume, V, is given by the equation V=A*t^3+B/t?
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If V=1.5*t+0.0080*t^2 has the units millions of cubic feet per month, how would you rewrite the equation if you wanted the result in cubic feet per second?
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Given Newton's gravity formula, F=G*(M*m)/(r^2), what are the SI units of the universal gravity constant, G?
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How do you convert 8.50 "in"^3 to "m"^3?
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What is the area in square meters of a 100 ft xx 150 ft rectangular yard?
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What is the volume of a 40 " m"xx20 " m"xx12 " m" room in cubic feet?
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What is the weight in pounds of the air in rectangular room of volume 3.39xx10^5 " ft"^3, given the density of air is rho_"air"=1.29 " kg"/"m"^3?
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What is the velocity 5.0 " furlongs"/"fortnight" in "meters"/"second"?
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If one square mile is 640 acres, how many square meters are there in 1 acre?
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How many seconds are there in a year?
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How long will it take to cover the moon with spherical miniature meteors, one meter tall, each with a diameter of 1.00xx10^-6 meters, hitting the moon at a rate of 1 meteor per second?
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If a gallon of paint covers a 25.0 " m"^2 wall, what is the thickness of the paint?
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What is the volume in cubic meters of a pyramid 481 feet tall with a base of 13.0 acres?
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If 70% of Earth's surface is water, on average 1 mile deep, what is the mass of the Earth's water in kilograms?
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What is the average velocity of a particle, whose position can be determined by x=10t^2, from t_"initial" = 2.0 " s" to t_"final"=3.0 " s" and again, from t_"initial"=2.0 " s" to t_"final"=2.1 " s"?
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If a car travels 200 km at an average velocity of 40 km/hr, and a second car starting 1.0 hour later arrives at the 200 km destination at the same time, what is the average speed of the second car?
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How do you use substitution or elimination to solve the system of equations?
2x-3y-z=0, 3x+2y+2z=2, and x+5y+3z=2
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How do you find the vertical, horizontal, and oblique asymptotes of H(x)=(x^4+2x^2+1)/(x^2-x+1)?
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Does int_1^oo1/root(3)(x+1)dx converge or diverge? If it converges, what is the integral?
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How do you calculate the mass of the sun, M_"sun", using Kepler's third law (T^2=(4 pi^2 r^3)/(G M_"sun"))?
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How do you find the position and magnification of a convex mirror?
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What are the nuclear reactions required to produce ""_""^239 Pu from ""_""^238 U under fast neutron bombardment?
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If a car with velocity 100 "km"/"hr" slams on the brakes with constant deceleration of 10 "m"/("s"^2), how far does the car travel before coming to a complete stop?
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If a ball is thrown downward from the top of a building with initial velocity of 10 "m"/"s" and strikes the ground with a speed of 60 "m"/"s", how tall is the building?
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If a ball is dropped on planet Krypton from a height of 20 " ft" hits the ground in 2" sec", at what velocity and how long will it take to hit the ground from the top of a 200 " ft"-tall building?