Questions
Calculate the directional derivative of f(x,y,z)=x(y^2)+y((1-z)^(1/2)) at the point P(1,−2,0) in the direction of the vector...

Calculate the directional derivative of f(x,y,z)=x(y^2)+y((1-z)^(1/2)) at the point P(1,−2,0) in the direction of the vector v = 5i+2j−k. (a) Calculate the directional derivative of f at the point P in the direction of v. (b) Find the unit vector that points in the same direction as the max rate of change for f at the point P.

In: Math

Given the following balanced reaction, O2(g) + 4 H+(aq) + 4 Fe2+(aq) → 2 H2O(l) +...

Given the following balanced reaction,

O2(g) + 4 H+(aq) + 4 Fe2+(aq) → 2 H2O(l) + 4 Fe3+(aq)

What is the equilibrium constant (K)?

The following information may be useful.

O2(g) + 4 H+(aq) + 4e- → 2 H2O(l) Eº = 1.23 V

Fe3+(aq) + e- → Fe2+(aq) Eº = 0.77 V

In: Chemistry

For a given orbit, the orbital elements are h = 112 km2/s, e = 1.6, i...

For a given orbit, the orbital elements are h = 112 km2/s, e = 1.6, i = 30 degrees, omega = 40 degrees, w = 60 degrees, and v = 30 degrees.

i. Find the position vector, r, and velocity vector, v, of a satellite in the perifocal coordinate system.

ii. Convert the position and velocity vectors obtained in part i to the geocentric-equatorial coordinate system

In: Physics

What is the standard reduction potential of the Y1+/Y redox couple if the cell potential of...

What is the standard reduction potential of the Y1+/Y redox couple if the cell potential of the following cell at 25 oC is 0.98 V?

Zn / Zn2+ (0.34 M) // Y1+ (1.1 M) / Y

Eo =

What is the cathode pH in Co/Co2+(1.00 M)//H1+(x M), H2(1.0 atm)/Pt if E = 0.06 V? Give the pH to 0.01.


pH=

In: Chemistry

Write each vector as a linear combination of the vectors in S. (Use s1 and s2,...

Write each vector as a linear combination of the vectors in S. (Use

s1 and s2,

respectively, for the vectors in the set. If not possible, enter IMPOSSIBLE.)

S = {(1, 2, −2), (2, −1, 1)}

(a)    z = (−13, −1, 1)


z =  

  

(b)    v = (−1, −5, 5)


v =  

  

(c)    w = (−2, −14, 14)


w =  

  

(d)    u = (1, −4, −4)


u =  

  

In: Advanced Math

A tennis ball is thrown against a wall and rebounced. M(mass of wall)*v (for ball) =2*m(mass...

A tennis ball is thrown against a wall and rebounced. M(mass of wall)*v (for ball) =2*m(mass of ball) * V(for wall), KE(wall)=1/2 * Mv2; KE(in)=1/2 *mV2 and

KE(out)=1/2 *mV2+1/2*Mv2 ; If KE(in)=KE(out), Where did 1/2*Mv2 go? Is the KE conderved? Prove it.

In: Physics

x y fxy(x,y) -1 -2 1/8 -0.5 -1 1/4 0.5 1 1/2 1 2 1/8 Show...

x

y

fxy(x,y)

-1

-2

1/8

-0.5

-1

1/4

0.5

1

1/2

1

2

1/8

  1. Show that the function above satisfies the probabilities of a joint probability mass function.
  2. Find E(X), E(Y), V(X), V(Y)
  3. Find marginal probability distribution of X
  4. Find the covariance and correlation.

In: Statistics and Probability

Design a clipper circuit which will clip off the input above +5 V and below +2...

Design a clipper circuit which will clip off the input above +5 V and below +2 V.

You may use any of the following components

1) Diodes with forward drop of 0.7V

2) Zener Diodes (Ideal) of any breakdown voltage

3) DC voltage source (any value)

(Please provide all steps in detail. I wish to study using them)

In: Electrical Engineering

First derive the truth table for the requested modulus sequence, draw the circuit, then implement it...

First derive the truth table for the requested modulus sequence, draw the circuit, then implement it using only the built-in AND, OR, and NOT gates.

Exercise 18 [3.0]

LOCK

Consider a boolean function with inputs: d, e, f, g. The value of the inputs can be defined as V = 8*d + 4*e + 2*f + 1*g. The output of this function is true if V mod 3 is 1.

In: Computer Science

An infinite nonconducting sheet has a surface charge density σ = 8.00 pC/m2. (a) How much...

An infinite nonconducting sheet has a surface charge density σ = 8.00 pC/m2.

(a) How much work is done by the electric field due to the sheet if a particle of charge q = +1.60 ✕ 10−19 C is moved from the sheet to a point P at distance d = 3.52 cm from the sheet?    

(b) If the electric potential V is defined to be zero on the sheet, what is V at P?

In: Physics