# Yahoo Web Search

1. ### First order reaction - rate constant ( k )?

...you're given Ea and two temps and asked to calc k .. .. . .whenever you read Ea, T and k (or rate) in the same equation...

2 Answers · Science & Mathematics · 01/06/2020

2. ### find value of k for which y=6x+ k is tangent to curve y=7sqrt(x.)?

... tangent lines of form y = 6x + k have slope 6  Set slope dy/dx = 7/[2√(x)] = 6  x = 49... how that applies here  (y/7)^2 = x = (y – k )/6  6y^2 = 49y – 49k  6y^2 - 49y + 49k = 0  49*49 = 4*6*49k...

3 Answers · Science & Mathematics · 29/01/2020

3. ### Find u and v if u+4v=4i- k and 4u-v=i+j+ k .?

If you treat i, j, and k as constants, you have two variables and two unknowns that...39;s solve the first equation for u in terms of v: u + 4v = 4i - k u = 4i - k - 4v Now substitute that into the other equation and solve for v: 4u...

2 Answers · Science & Mathematics · 12/06/2020

4. ### For the equation | (x - 4)2 - 12 | = k to have four solutions, the value of k must be greater than 0 and less than ___ ?

You want to know the values of k that makes x have four solutions. |(x - 4)² - 12| = k ...12 = ± k Now we can add 12 to both sides: (x - 4)² = 12 ± k Get the square root of both sides (another ± gets added...

1 Answers · Science & Mathematics · 23/07/2020

5. ### Find k (0) K (2) and k (4)?

k (0) : look where x = 0 and find the y value: k (0) = 0 You can do the same for the other two.

1 Answers · Science & Mathematics · 16/09/2020

6. ### Simplify a Boolean expression using K -maps?

...the truth table, you can use boolean algebra to get those entries to plug into a K -map grid.  Pardon me if I use A' for "not ...

1 Answers · Computers & Internet · 27/11/2020

7. ### For which value of k does the function below have only one real solution? Use the format k =.. for your response?

...would only return a single value if the sign were less than or equal to (≤) and k = -15. |4 + 7x| - 15 ≤ -15 But the inequality symbol is less than (&...

2 Answers · Science & Mathematics · 24/10/2020

8. ### How do I figure out the mass of the propellant needed, given: Exhaust Vel: 3500m/sdry mass: 3,000 k /gTot Delta V: 600m/sBurn: 110 secs?

...fuel mass flow rate in kg/s which we assume to be constant. Let's call it k If m = initial mass of fuel  M = dry mass of rocket t = time where 0...

2 Answers · Science & Mathematics · 17/10/2020

9. ### Need help finding magnitude of K .?

from the arrhenius equation .. k = Ao exp(-Ea / RT) for 2 conditions of different ...

1 Answers · Science & Mathematics · 09/02/2020

10. ### If 7 ∑ k =0 ( k −2) = 7 ∑ k =0 ( k −1)+B, then B=?

I guess {7 ∑ k =0 ( k −2)} = {7 ∑ k =0 ( k −1)+B} If it's true then B = -8

1 Answers · Science & Mathematics · 04/06/2020