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What is 30% of 400? - Socratic
Feb 2, 2017 · 120 is 30% of 400. When we write that something is x% of y, we meant that it is x/100xxy. Applying this, we get that 30% of 400 is 30/100xx400 = 12000/100 = 120
Socratic.orgWhat is #30%# of #400# - Socratic
Jan 26, 2017 · Answer =120 >30%= 3/10 3/10*400 Firstly, you divide by the denominator 10: 400/10=40 Then, you multiply by
Socratic.orgCalculate the height from the Earth's surface that a - Socratic
Jan 12, 2018 · h = ((GM_E)/(4pi^2)T^2)^⅓ - R_E Geosynchronous means that the satellite has same period as the earth, back to the same place in 24 hours. T =24hrs = 86400 s And let h = height of the satellite from the surface of the earth. r = radius of the satellite from the center of the Earth R_E = earth radius M_E = mass of the earth The gravitational pull from the earth causes …
Socratic.orgHow do you evaluate #Sin (165)#? - Socratic
Sep 29, 2016 · Some things we will use: #sin(theta) = sin (180^@ - theta)# #sin(alpha-beta) = sin alpha cos beta - sin beta cos alpha#
Socratic.orgAn archer fires an arrow at a velocity of - Socratic
Nov 29, 2017 · The arrow will travel a little more than 164 m before it hits the ground. It will definitely not make it to a tree 400 m away. First find the two components of the initial velocity: u_x=ucostheta=40cos45=28.3 ms^-1 u_y=usintheta=40sin45=28.3 ms^-1 The horizontal velocity will remain constant, the vertical velocity will change due to the acceleration due to gravity. In …
Socratic.orgCombined Gas Law - Chemistry - Socratic
A small research submarine with a volume of 1.2x10 ^5 L has an internal pressure of 1.0 atm and an internal temperature of 150°C. If the submarine descends to a depth where the pressure is 150 atm and the temperature is 30°C, what will the volume of the gas inside be if the hull of the submarine breaks?
Socratic.orgHow can I calculate wavelength of a photon? + Example - Socratic
Apr 25, 2015 · If you know the frequency of the photon, you can calculate the wavelength using the equation lambda=c/nu where c is the speed of light and nu is the frequency. Example: for a photon of frequency 6times10^(12) s^(-1) the wavelength is lambda=(3times10^8 m/s)/(6times10^(12) s^(-1))=5times10^(-5) m=50 micrometers
Socratic.orgInequality Expressions - Algebra - Socratic
Dec 23, 2014 · You have $60 to buy fish for a 30-gallon aquarium. Each angelfish costs $12 and needs at least 6 gallons of water. Each neon tetra costs $3 and at needs least 3 gallons of water.
Socratic.orgWhat does "mM" mean? - Socratic
Aug 14, 2017 · what is the molarity of 20.0 ml of a KCl solution that reacts completely with 30.0 ml of a 0.400 How can molarity and osmolarity be calculated from mass per unit volume? How can molarity be used as a conversion factor?
Socratic.orgWhat is molarity? + Example - Socratic
May 22, 2014 · Molarity is the concentration of a solution expressed as the number of moles of solute per litre of solution. To get the molarity, you divide the moles of solute by the litres of solution. "Molarity" = "moles of solute"/"litres of solution" For example, a 0.25 mol/L NaOH solution contains 0.25 mol of sodium hydroxide in every litre of solution. To calculate the molarity of a …
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