WHAT IS THE ANGLE BETWEEN TWO VECTORS.A=I-J AND B=I+K? - SOCRATIC
Jun 28, 2018 {A = i −j B = i +k A ⋅ B = |A||B|cosα From that definition: cosα = A⋅ B |A||B| A ⋅ B = 1, − 1,0 ⋅ 1,0,1 = 1 |A| = √2 |B| = √2 ⇒ cosα = 1 2 ⇒ α = arccos(1 2) = π 3 From bing.com
FIND THE ARC LENGTH FOR THE FOLLOWING QUESTION? | SOCRATIC
May 7, 2018 2 For x = x(y), arc length is s = int_(y_1)^(y_2) \\ sqrt(1 + (x')^2) \\ dy From Fundamental Theorem of Calculus: x(y) = int_1^y \\ sqrt (sec^4 t - 1 ) \\ dt implies ... From bing.com
DAVID BOUGHT 16 BOXES OF PAPER FROM AN OFFICE SUPPLY STORE ... - SOCRATIC
Feb 8, 2017 David bought 16 boxes of paper from an office supply store. Each box of paper weighed 2 1/2 pounds How many pounds of paper did David buy? Prealgebra From bing.com
The specific heat capacity of platinum is 0.032 cal/g·K. How to calculate the heat, in joules, necessary to raise the temperature of a sample of platinum weighing 20.0 g from 15.0 Celsius to 65.0 Celsius? From bing.com
That much propane would form 130 kg of carbon dioxide. Start by writing the balanced chemcial equation for the combustion of propane, C_3H_8 C_3H_(8(g)) + 5O_(2(g)) -> color(red)(3)CO_(2(g)) … From bing.com
Lapse rate is the change of temperature over altitude. As a parcel of air rises it cools, as it lowers it warms. It does this adiabatically, meaning without mixing with the surrounding air. The reason the … From bing.com
AN OBJECT WITH A MASS OF 4 KG, TEMPERATURE OF 105 ^OC, AND A
An object with a mass of 4kg, temperature of 105oC, and a specific heat of 32 J kg ⋅ K is dropped into a container with 16L of water at 0oC. Does the water evaporate? If not, by how much does the water's … From bing.com
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