Mar 11, 2018 · "400 cm" >>"1 m = 100 cm" "4 m" = 4 cancel"m" × "100 cm"/(1 cancel"m") = "400 cm" ∴ There are 400 centimetres in 4 metres.

Dec 3, 2015 · IMA=3 The mechanical advantage (MA) of a machine is a measure of how much the force is multiplied. It is the ratio of load/effort: MA=L/E Because energy is conserved, this is done as a trade - off against the distance the effort moves compared with the load. The ideal mechanical advantage (IMA) is the ratio of the distance moved by the effort/distance moved by the load. IMA=D_e/D_l If we ...

Dec 25, 2016 · Here's how you can do that. Start by calculating how many moles of sodium hydroxide you need in order to have "50 cm"^3 of "2 mol dm"^(-3) solution. As you know, molarity is defined as the number of moles of solute, which in this case is sodium hydroxide, present in "1 dm"^3 of solution. This means that a "2 mol dm"^(-3) solution will have 2 moles of sodium hydroxide dissolved for every "1 dm ...

Feb 18, 2016 · q_3 need to be placed at a point P_3 (-8.34, 2.65) about 6.45 cm away from q_2 opposite the attractive line of Force from q_1 to q_2.

Oct 23, 2017 · See a solution process below: Step 1: Solve the first equation for n: 2m - n = 13 -color(red)(2m) + 2m - n = -color(red)(2m) + 13 0 - n = -2m + 13 -n = -2m + 13 color ...

Nov 9, 2014 · 2m^3+3m^2+4m+6 by factoring m^2 out of the first two terms and 2 out of the last two terms, =m^2(2m+3)+2 ...

Oct 14, 2015 · The height (length) is "24 cm". The diagonal of a right triangle is the hypotenuse and is designated as side c. The width of a right triangle is side b, and the height is side a. You are looking for side a. The Pythagorean equation is c^2=a^2+b^2. c="25 cm" b="7 cm" a=? Rearrange the equation to solve for side a. a^2=c^2-b^2 Substitute the known values into the equation. a^2=(25"cm")^2-(7"cm ...

Dec 30, 2016 · "pH" = 4.0 As you know, a solution's molarity, or molar concentration, is calculated by taking the number of moles of solute present in "1 L" of solution. This basically means that in order to find a solution's molarity, you must know how many moles of solute it contains the total volume of the solution The first thing you need to do here is to calculate how many moles of benzoic acid, "C"_7"H ...

Oct 29, 2016 · Use the rule loga^n = nloga. = -1log_5(5) Use the change of base rule log_a(n) = logn/loga. =-1log5/log5 =-1 Hopefully this helps!

Nov 17, 2017 · We dissolved an unknown monobasic organic acid A in exactly #"50.0 cm"^3# of 0.93 mol/L #"NaOH"#. Then we ...