**r**adius of o**r**bit is 4**r**V = √(GM/ R ) V = √(GM/4**r**) V²4**r**= GM M = V²4**r**/...1 Answe

**r**s · Science & Mathematics · 28/10/2020E = kQ /

**r**² applies to a sphe**r**ical object of**r**adius R with a cha**r**ge q and fo**r**the field at a distance f**r**om the cente**r**of**r**> R ...1 Answe

**r**s · Science & Mathematics · 04/06/2020### (p

**r**e Calculus) Fo**r**both nP**r**(pe**r**mutations) and nC**r**(combinations), n ≥**r**. Explain why is that t**r**ue?Look at the definitions nPr = n! / (n -

**r**)! If**r**> n, then you have the factorial of a negative number, which isn't defined.2 Answe

**r**s · Science & Mathematics · 29/05/2020...have a no

**r**m " max | a_1 j | , j = 1,2,3,..., n "{ max ent**r**y magnitude }....so in R _2 ..< √2 , √ 2 > , < 0 , - 2 > , <...2 Answe

**r**s · Science & Mathematics · 20/07/2020What is the

**r**efe**r**ence f**r**ame fo**r**the angle? I'll assume that it is measu**r**ed f**r**om ve**r**tical tanθ = (v²/**r**) / g = v² /**r**g v² =**r**gtanθ v² = 0.450(9.81)tan25 v² = 2.0585 v = 1.43 m/s1 Answe

**r**s · Science & Mathematics · 08/12/2019y=a(x−

**r**)(x−s) --- you have 3 points given assume one end .. location of...a pa**r**abola .. which estimates the cu**r**ve y = ax^2 + bx + c y = a(x -**r**)(x - s) y = ax^2 - a(**r**+ s)x + a**r**s y = ax^2 + bx + c <...1 Answe

**r**s · Science & Mathematics · 02/07/2020He is a male, so of course he's interested in more than friendship.

1 Answe

**r**s · Society & Culture · 12/12/2019Hocus Pocus and alakazam! Welcome, welcome to the

**R**& S clan.5 Answe

**r**s · Society & Culture · 13/03/2020With consent, no. Without consent, yes. It's not a difficult concept.

3 Answe

**r**s · Family & Relationships · 08/07/2020Who is that.. anyway I will come on here whenever I want to although Y!A is boring and glitchy at times.

5 Answe

**r**s · Entertainment & Music · 27/08/2020