Physics High School

PLEASE HELP MEEEE
marking brainliest ​

PLEASE HELP MEEEE Marking Brainliest

Answers

Answer 1

Answer:

Option C

Explanation:

Centripetal acceleration formula regarding velocity and radius is,

[tex]a_c=\frac{v^2}{r}[/tex]

now we know the centripetal acceleration is 9 and the radius is 16 so we plug these values into our formula,

[tex]a_c=\frac{v^2}{r}\\\\9=\frac{v^2}{16} \\\\144=v^2\\\\\sqrt{144}=v \\\\v=12\ m/s[/tex]

so velocity is 12 m/s

Now for the angular velocity, the formula of centripetal acceleration regarding angular velocity and radius is,

[tex]a_c=rw^2[/tex]

we know the centripetal acceleration is 9 and the radius is 16 so plug these values into the formula,

[tex]a_c=rw^2\\\\9=16w^2\\\\0.5625=w^2\\\\\sqrt{0.5625}=w \\\\0.75\ rad/s=w\\[/tex]

so angular velocity is 0.75 rad/s

Related Questions

When illuminated with monochromatic light, a double slit produces a pattern that is a combination of single-slit diffraction and double-slit interference. This can be easily seen if the separation between the slits and the size of slits are related by simple fractions. Find the ratio of the width of the slits to the separation between them, if the first minimum of the single slit pattern falls on the fifth maximum of the double slit pattern.

Answers

Answer:

The ratio is  [tex]k:d = 1 : 5[/tex]

Explanation:

From the question we are told that

   The first minimum of the single slit pattern falls on the fifth maximum of the double slit pattern.

Generally the condition for constructive interference for as single slit is  

     [tex]ksin(\theta) = n\lambda[/tex]

Here  k is the width of the slit  and n is the order of the fringe and for single slit n =  1 (cause we are considering the first maxima)

Generally the condition for constructive interference for as double slit is    

        [tex]dsin\theta = m\lambda[/tex]

Here  d is the separation between the  slit  and m is the order of the fringe and for double slit  m  =  5  (cause we are considering the first maxima)

=>     [tex]dsin\theta = 5\lambda[/tex]

So

       [tex]\frac{ksin(\theta)}{dsin(\theta)} = \frac{\lambda}{5\lambda}[/tex]

=>    [tex]\frac{k }{d} = \frac{1}{5}[/tex]

So  

      [tex]k:d = 1 : 5[/tex]

Other Questions
An economic recession refers to __________.A.a long period of economic growthB.a sustained decline in economic outputC.a governmental policy of printing more moneyD.a short period of booming economic growth and prosperity Help pls :)))))))))))))) What were some of the grievances people had against the government during the Civil Rights Era? (think about rights people did not have) I will give out the brain thing and extra points, image below. determine the value of x , (5)(x)=0 ..................................................... LAURIE I'm almost through, Ma.BLANCHE All right, darling. Don't get up too quickly.KATE (To LAURIE) You have better color today, sweet-heart. Did you get a little sun this morning?LAURIE I walked down to the beach.BLANCHE Very slowly, I hope?LAURIE Yes, Ma.BLANCHE That's good.EUGENE (Turns to the audience again) She gets all this special treatment because the doctors say she has kind of a flutter in her heart . . .Brighton Beach Memoirs,Neil SimonWhy does Eugene speak to the audience?He helps us understand why people are so nice to Laurie.He tells us why a heart flutter is dangerous.He makes us feel sorry for Laurie. He lets us know that hes tired of the special treatment Laurie receives. Scientists around the world all use a standard system of measurement called the metric system. Why? Question 2 options: A. because every country speaks the same languageB. so scientists can communicate with each other about data without confusion C. every country (including the United States) uses the metric system Assuming each area code is just as likely as any other, what's the probability that the area code of two back to back spam calls are 804 (PLS ANSWER ASAP I WILL GIVE BRAINLY POINTS) Western Europe is located to the __________.A.east of the Atlantic OceanB.west of the Arctic OceanC.south of AfricaD.north of AsiaPlease select the best answer from the choices providedABCD PLEASE ANSWERR QUICKK !!Which of the following best describes the Treaty of Ghent and its impact on the War of 1812?Select one:A) It was a treaty signed by the US and Britain that brought an end to the war and restored the borders of the two nations to where they stood before the conflict.B) It was a treaty between Britain and Native American tribes in which the British agreed to help retake Native American land from the United States in exchange for their agreement to fight in the war.C) It was a treaty between the US and France that doubled the amount of ships the US could use to fight Britain and greatly increased their chances of victory.D) It was a treaty signed by the US and Mexico in which the US agreed to give Mexico control of California if they sent troops and ships to Texas to help in the fight against the British. Solve 4x + 8y = 16 for x.O A. x=-8y + 4O B. x= -2y+ 16O C. x= -2y+ 4D. X = 8y + 16 Shelby Cabinets, Inc. produces custom cabinets. The following inventory balances appeared on its balance sheet.12/31/201212/31/2011Raw materials inventory$ 8,000$ 10,000Work-in-process inventory600,000550,000Finished goods inventory350,000410,000Shelby Cabinets had $1,265,000 in sales for the year ended December 31, 2012. The company also had the following costs for the year:Selling$ 90,000General and administrative$240,000Raw materials purchases$100,000Direct labor used in production$125,000Manufacturing overhead$630,000Of the total raw materials placed in production for the year, $12,000 was for indirect materials and must be deducted to find direct materials placed in production.Using the above information, what was Shelbys Cost of Goods Manufactured?(Hint: You must first calculate Direct materials placed in production before calculating the Cost of Goods Manufactured.)Group of answer choices$795,000$845,000$855,000$1,395,000 How was the Homefront of the United States shaped by propaganda Lamar moved the Texas government and all the documents of the government to Austin. A few years later, Sam Houston tried to move them back to Houston. Which event in 1842 was this known as? A. the Archives War B. the Capital Offensive C. the Black Bean Episode D. the Council House Fight Explain and critically evaluate ethical relativism as a moral theory, including discussion of at least one major objection to this theory. Is it ultimately a plausible moral theory Please help i will mark braniliest and 30 points If you solve the inequalty 2x < 14, the solution set is x < 7. Graph x < 7 on a number line. Which one of the listed values of x is included in x < 7A) x=8B) x = 7C) x = 12D) x= -8 Please, i need help on how to solve problems like these. I dont understand and i wasnt in class when they taught it to us. PLzzzz.Will make it the brainiest if its corrected and explaining how to solve problems like these. Help if you know please The concentration of the solute in the solution is lower than the concentration inside the cell When a cell is placed in this solution, more water enters the cell than it leaves it The concentration of the solute in the solution is higher than the concentration inside the cell The concentration of the solute in the solution is the same as in the cell Causes water to move across the cell membrane Causes a cell to swell When a cell is placed in this solution, more water will leave the cell than it enters it Doesnt change the shape of a cell as the same amount of water enters and leaves the cell Hypotonic Solution Isotonic Solution Hypertonic Solution