Zed

This page lists questions and answers that were posted by visitors named Zed.

Questions

The following questions were asked by visitors named Zed.

Okay so I want to solve for refractive index. I'm given the dielectric constant and the permeability M. From what I understand the refractive index is frequency dependent. I'm just unsure what equation to use. n=(Er)^1/2 does not work because the dielectr...

The focus of the parabola is (-1, -9/4), and the directrix is the line y = -7/4. Show that the point (-2,-3) on the parabola is the same distance from the focus as from the directrix.

Given that the indicated lines in the figure below are parallel, determine the sum of a+b+c without measuring the angles. Explain your reasoning in the style of a two-column proof.

In the proof that ab+cd, where a, b, c, and d are integers and b and d are non-zero, explain why ad+bcbd is a rational number.

Find the product of 12−−√ and 56. What type of number is it?

Find the product of 12−−√ and 5/6. What type of number is it?

Which of the following is an example of correct attribution?

Using the properties of exponents, which expression is equivalent to x/3/4 x?

If a repeating decimal has a repeating cycle of three digits, it will convert to a rational number with what denominator?

How many digits long would the repeating cycle of a repeating decimal be if the denominator of the rational number is 7?

Use the Quotient Property and Negative Exponent Property to generate an equivalent expression for 49√7−3.

Find a rational number with one decimal place that is between 17−−√ and 18−−√ .

which of the following is true about -47?

which of the following is a rational number between 8 and 81/2?

which of the following is a rational number between 8 and 8 1/2?

How does the central idea of the article emerge?

What is a topic?

Consider the expression [3(42+32÷4−5)]. Which quotient must be found to simplify the expression?

Which of the following statements about the equation 2x−5=8+x is correct?

Which of the following options contains two coefficients and three terms?

What is most necessary for a coherent text to do?

Apply the Property of Negative Integer Exponents to solve 3−4.

8^? ÷ 8^7= 8^13

From first to last, order the steps to prove that expression A is equivalent to expression B. Expression A: (x+4)(x−2) Expression B: x2+2x−8

Identify two expressions that will be equivalent to 2x2−8x−10 when distributed. Enter the option with the lesser number first.

Simplify (14x2−3x+2.25)+(0.75x2+2x−14).

Add the polynomial expressions 2r2−3r+4 and −2r2+3r+6.

Add the expressions. Expression 1: −3k+4k3−2 Expression 2: 9k2−3k3+4k−3

Answers

The following answers were posted by visitors named Zed.

Methyl Propyl Ether

A ball of mass 4kg falls to the floor it lands with aspeed of 6 m/s it bounces off with the same speed show that its momentum has changed by 48 kg m/s

ball of mass 4kg falls to the floor it lands with aspeed of 6 m/s it bounces off with the same speed show that its momentum has changed by 48 kg m/s

because it's supposed to be like that.