math
if you have a 4 kg block and divide it into 8 equal blocks. what will be the mass of each block in grams?
vectors HELP!
determine an equation of the plane that is perpendicular to the plane x+2y+4=0, contains the origin, and has a normal that makes an angel of 30 degrees with the z-axis.
Math
6 boxes are left
calculus
what values do i plug in for t? do i have to guess and check?
calculus
Two particles move along the x-axis. For 0≤t≤6, the position of particle P is p(t)=2cos(t*π/4), while the position of particle R is r(t)=t^3-6t^2+9t+3. For 0≤t≤6 find all the times which the two particles travel in opposite directions.
calculus
what does your answer mean exactly?
calculus
A 12,000 liter tank filled to capacity at t=0 drains at rate r(t), measured in liters per hour, where r is defined as piece-wise function: r(t)={ (600t)/(t+3), [0,5] {1000e^(-0.2t), (5,infinity) Is r continuous at t=5? Show work that lead to you answer.
calculus
in the first line of equation, where did "cos(pi*t/30 * 119/120)" come from?
calculus
If the hands on a clocktower's clock are 2ft and 3ft long, how fast is the distance between the tips of the hands of the clock changing at 9:20? I know that the derivative of the minute hand is pi/30 rad/min and derivative of the hour hand is pi/360 rad/min. what is the eq...
chem
if 12 L of a saturated solution of PbSO4 is found to contain 0.46g of PbSO4, what is the Ksp of PbSO4
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