Question: CHART +3 = 2 x +10 = 10 x - 3 = 1/ 2 -10 = 1/10 A wave intensity is 4mw / cm? .

cm? . There is an increase of + 9 dB . What

4 x 2 = 8 stranger 8 x 4mW/cm = 32 mW/cm2

CHART +3 = 2 x +10 = 10 x - 3 = 1/ 2 -10 = 1/10 A wave intensity is 4mw / cm? . There is an increase of + 9 dB . What is the final intensity ? 14 +9dB ZX 2X 2x 2x2 X2 4 x 2 = 8 stranger 8 x 4mW/cm = 32 mW/cm2 A signal is increased in strength 100 times . Determine the amant of change in deabels . 100 Break down x10 710 Positive 10JB 10dB 10 + 10 = 20dB The power in a wave is Increased to look times it's original value . How many decibels correspond to this change 1000 Breakdown 1 +10 flo to I OdBY 1 0dB' 10 dB = 30 dB 100 X 10 =CHART +3 = ZX +10 - 10 x - 3 1/2 -10 = 1/10 The Intensity of an ultrasand wave is changed by - 9dB . This means that the current intensity is as much as the original level . - adB / 1 1 - 3 -3 - 3 2 * 2 1 2 Co- 1/2 1/2 1/2 2 2 2 The intensity of a signal decreases by it adB. How big is the new intensity compared to the eqoriginal intensity ?8 + 9 d B 3 3 3x 2 x 2X 2X 4 x 2 - 8 stronger The power in a wave is increased to lotimes its original valve . Determine the amount of change in decibels . + 10X + 10 x = 10dBDATE . ( A ) The power in awave is increased to lo times its original vale . Determine the amount of change in decibels CHART +3 = 2x +10 = 10x + LO 10 JB -3 = 1/2 -10 = 1/ 10 . ( 3 ) The Intensity look a signal is reduced by 20dB . How big is the new intensity compared to le 20 dB keyword "reduced" -10 -10 10 x 10 = 100 new = ? ongmal - To 10 10 100 new intensity = 1 100

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Physics Questions!

1.Which general ledger document tracks the amount of money that a customer owes for the goods received by the customer? a. Accounts payable c. Balance sheet b. Income statement d. Accounts receivable...

Problem 2. (b) 5 cm. Problem 3. (a) x/ cm, 9 = 33.70, (b) 1, -5. Problem 6. (a) (2.7\": 63)) cm, (b) (457 + 21)) cm, (c) 2m cm, (d) 2M5 cm, (6) -71.56, 26.57. Problem 7. (a) 3.5 km, (b) 2.11 km, 955....

the potential rational zeros of the polynomial function. Do not find the zeros. 48 ) f ( x ) = 6 x 4 + 3 x 3 - 2 x 2 + 2 A) + 4 +1 +1 2' 5, +1, + 2 B) +1. 48 ) C ) + - 1 2'* 7 1 + 1, + 2, +3 1 7, +1...

\fQuestion 3 Match each function with its contour plot. - Of(x, y) = 22 -y2 - Of(x, y) = y2 - x2 - Of(x, y) = 0.25x2 + 2 - Of(x, y) = =2+ 2 - Of(x, y) = 2x2 + 2y2 - Of(x, y) = x2 +0.2532 y 2 12 1 10...

Part 1 Shown is the graph of the a rational function 1 y f x obtained from the graph of g x means of a horizontal and a vertical translation 10 9 8 7 6 10 9 8 7 6 5 4 3 2 x 1 4 3 2 1 1 2 3 4 5 6 7 8...

Incorrect Question 3 0 / 10 pts Question 3: A product recommendation system is an example of 1) Regression 2) Classification 3) Clustering 2) o 3) 01) and 3) 1), 2) and 3) Incorrect Question 6 0 / 10...

Solve this no explanation needed 22. Check for Reasonableness Maya says an A s3+3 21. Which expression is equivalent to s3 . (s2t) 0 . t3? equivalent expression for a b- is p. Is she 5 2 t correct?...

() Evaluate Chloe's work. Chloe wrote an incorrect power Step 1 0.000018 ~ 0.00002 of 10 in Step 3. Step 2 ~0.0 0002 Step 3 ~ 2 x 10' ")) Write the correct estimate. X 10-5 Chloe correctly moved the...

Please help answer just part f. (in red) for this problem. I will be re-working it before I submit, but I need full guidance to better learn the concepts and how you got to them through Excel....

While observing the increase in the base cost of his cell phone bill each year, a student recorded the following data: January's Cell Phone Bill for the Past 4 years Year Base Rate on Bill $59.95 2...

There are m red balls and n white balls in an urn. We draw two balls simultaneously and at random. What is the probability that the balls are of different colour?

A budget is a collection of estimates a big word that means the same thing as "guess!" If you are guessing what future results will be, what value can a budget really have?

The calculation net income / sales is the formula for which of the following ratios Select one: a . Assets turnover b . Return on assets c . Assets usage d . Profit margin

Starbucks has a large, global supply chain that must efficiently supply over 17,000 stores. Although the stores might appear to be very similar, they are actually very different. Depending on the...

Values: What is important to me?

Purpose: What do we seek to achieve with our behaviour?

An action plan is prepared.