Question

In: Physics

Suppose we have the following vectorial equation c = na x b where n is a...

Suppose we have the following vectorial equation c = na x b where n is a constant, and c, a, b are vectors Givens n = -1 a = 2i – j

a) Determine the direction and size of the vector c if b = 2i

b) Determine the direction and size of the vector c if b = 2k

c) Determine the direction and size of the vector c if b = 2i – k

I really need the step by step for this. If you could, please write legibly.

Thank you Greatly!

Solutions

Expert Solution


Related Solutions

(a) The n × n matrices A, B, C, and X satisfy the equation AX(B +...
(a) The n × n matrices A, B, C, and X satisfy the equation AX(B + CX) ?1 = C Write an expression for the matrix X in terms of A, B, and C. You may assume invertibility of any matrix when necessary. (b) Suppose D is a 3 × 5 matrix, E is a 5 × c matrix, and F is a 4 × d matrix. Find the values of c and d for which the statement “det(DEF) =...
Suppose we have three events, A, B, and C such that: - A and B are...
Suppose we have three events, A, B, and C such that: - A and B are independent - B and C are independent - P[AUBUC]=0.90 -P[A]= 0.20 - P[C]= 0.60 Compute P [C | AUB]
Consider the parabolas y=x^2 and y=a(x-b)^2+c, where a,b,c are all real numbers (a) Derive an equation...
Consider the parabolas y=x^2 and y=a(x-b)^2+c, where a,b,c are all real numbers (a) Derive an equation for a line tangent to both of these parabolas (show all steps with a proof, assuming that such a line exists) (b) Assume that the doubly-tangent line has an equation y+Ax+B. Find an example of values of a,b,c (other than the ones given here) such that A,B ∈ Z
Consider the parabolas y=x^2 and y=a(x-b)^2+c, where a,b,c are all real numbers (a) Derive an equation...
Consider the parabolas y=x^2 and y=a(x-b)^2+c, where a,b,c are all real numbers (a) Derive an equation for a line tangent to both of these parabolas (show all steps, assuming that such a line exists) (b) Assume that the doubly-tangent line has an equation y+Ax+B. Find an example of values of a,b,c (other than the ones given here or in class) such that A,B ∈ Z (c) Consider the case a = 1. Does your algebra accurately reflect what we can...
Suppose we have an economy where the population is the same every period, Nt = N...
Suppose we have an economy where the population is the same every period, Nt = N and the money supply is increasing by z each period, i.e., Mt = zMt−1. The government uses the money it creates each period to finance a lump-sum subsidy of a ∗ goods to each old person. (a) (10 points) Find the equation for the budget set of an individual in the monetary equilibrium. Graph it. Show an arbitrary indifference curve tangent to the set...
Say we have a continuous random variable X with density f(x) = c (1+x3) (where c...
Say we have a continuous random variable X with density f(x) = c (1+x3) (where c is a constant) with support Sx = [0,3] a. What value of c will make f(x) a valid probability density function? b. What is the probability that X=2? What is the probability that X is greater than 2? Now say we have an infinite sequence of independent random variables Xi (that is to say X1, X2, X3, ....)  with density f(x) stated earlier. c. What...
Suppose we have the following pdf for the random variable X f(x) ={x 0<=x<=1 c/x^2 1<=x<=...
Suppose we have the following pdf for the random variable X f(x) ={x 0<=x<=1 c/x^2 1<=x<= infinity 0 otherwise } (a) 2 points Find the value c such that f(x) is a valid pdf. (b) 3 points Find the cdf of X. (c) 1 point Find the 75th percentile of X.
Let f(x) = {(C/x^n if 1≤ x <∞; 0 elsewhere)} where n is an integer >1....
Let f(x) = {(C/x^n if 1≤ x <∞; 0 elsewhere)} where n is an integer >1. a. Find the value of the constant C (in terms of n) that makes this a probability density function. b. For what values of n does the expected value E(X) exist? Why? c. For what values of n does the variance var(X) exist? Why?
1) Write a function equation(A, B) that returns a value C where A + B =...
1) Write a function equation(A, B) that returns a value C where A + B = C a. Write the equation function: b: Write the output of your function for a few values: 2) Write a non-recursive function called fact(n) that computes n! Try computing fact(n) for large values. Can you find the maximum value for n your program will compute correctly? a) Write your fact function: b) Write the output of your function for a few values: 3) Write...
Say we have a continuous random variable X with density function f(x)=c(1+x3) (where c is a...
Say we have a continuous random variable X with density function f(x)=c(1+x3) (where c is a constant)with support SX =[0,3]. a.) What value of c will make f(x) a valid probability density function. b. )What is the probability that X=2? What is the probability that X is greater than 2? Now say we have an infinite sequence of independent random variables Xi (that is to say X1, X2, X3, ....) with density f(x) stated earlier. c. What is the probability...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT