Dario, a prep cook at an Italian restaurant, spins a salad spinner and observes that it...

Dario, a prep cook at an Italian restaurant, spins a salad spinner and observes that it rotates 20.0 times in 5.00 seconds and then stops spinning it. The salad spinner rotates 6.00 more times before it comes to rest. Assume that the spinner slows down with constant angular acceleration.

What is the magnitude of the angular acceleration of the salad spinner as it slows down?

Express your answer numerically in radians per second per second.

Expert Solution

(A) Angular acceleration,
? = (?₂² -?₁²)/2.?

Angular speed, initial,

?₁ = 20x2? rad/5.0 s = 8? rad/s

Final angular speed, ?₂ = 0

Angular displacement, ? = 6.x2? = 12?rad

? = (?₂² -?₁²)/2.? =-64.?²/24?

= -8?/3 rad/s²

= - 8x180/3 degrees/s²

= -480degrees/s²

(B) Time taken to stop(duringdeceleration)

t = (?₂ -?₁)/?
= (0 - 8? rad/s)/-8?/3 rad/s²

= 3.0s

genius_generous answered 3 days ago

Step 1: Players will spin a spinner with 5 different coloured sections. If the player spins...

Step 1: Players will spin a spinner with 5 different coloured sections. If the player spins RED they end the game with no prize. If they spin any other colour they continue to step 2. Step 2: Players will roll two dice. If the sum of the two dice is 7+ then the player moves to step 3. If the player rolls a sum less than 7 then the player is out but will get $1 as a prize. Step...

Joe and Jan are thinking of opening an Italian restaurant. Setting up the restaurant is very...

Joe and Jan are thinking of opening an Italian restaurant. Setting up the restaurant is very expensive and costs $400,000 today and $200,000 the first year. However, they expect to earn $150,000 their first year, $130,000 the next year, $100,000 the third year, $200,000 the fourth year, and a whopping $300,000 their fifth year. If interest rates are currently 10%, should they open the restaurant of their dreams?

A new restaurant situated on a highway in specializes in a chef's salad selling for $7....

A new restaurant situated on a highway in specializes in a chef's salad selling for $7. Daily fixed costs are $1,100, and variable costs are $4 per meal. With a capacity of 550 meals per day, the restaurant serves an average of 500 meals each day. (a.) Determine the current average cost per meal. Round your answer to two decimal places. $______ (b.) A busload of 30 Girl Scouts stops on its way home from the San Bernardino National Forest....

As the manager of restaurant, you estimate the total product of labor used to cook metals....

As the manager of restaurant, you estimate the total product of labor used to cook metals. Use these data to calculate the marginal product of labor Quantity of Labor Total Product Marginal Product 0 0 1 20 2 45 3 65 4 80 5 90 -What effect does the law of diminishing marginal returns have on these schedules? What underlies the law of diminishing the marginal returns? 2As a result of increasing student population at the University of Pittsburg the...

BURN INJURIES A cook in a restaurant was rushed to the emergency department after sustaining burns...

BURN INJURIES A cook in a restaurant was rushed to the emergency department after sustaining burns on the face, entire torso, anterior right upper extremity, and anterior right lower extremity including the genitalia. Answer the questions pertinent to the patient’s condition. Compute for the total body surface area affected by the burns. Using parkland formula, compute for the fluid resuscitation for the patient on: a.First 8 hours b.Second 8 hours c.Third 8 hours What acid-base imbalance will the patient be...

1. BURN INJURIES A cook in a restaurant was rushed to the emergency department after sustaining...

1. BURN INJURIES A cook in a restaurant was rushed to the emergency department after sustaining burns on the face, entire torso, anterior right upper extremity, and anterior right lower extremity including the genitalia. Answer the questions pertinent to the patient’s condition. 1. Compute for the total body surface area affected by the burns. 2. Using parkland formula, compute for the fluid resuscitation for the patient on: a. First 8 hours b. Second 8 hours c. Third 8 hours 3....

Your friend Bob wants to starts an Italian restaurant and you decide to to invest in...

Your friend Bob wants to starts an Italian restaurant and you decide to to invest in it. Bob has full discretion over establishing and managing the business. On January 1, 2010, you gave Bob $150,000 to start the business at the beginning of 2010 in exchange for 10,000 shares and 20,000 common stock, respectively. Bob has agreed to receive a starting salary of $80,000 per year. Bob decided to focus on catering to local corporation, so he rented a space...

The owner of an Italian restaurant has just been notified by her landlord that the monthly...

The owner of an Italian restaurant has just been notified by her landlord that the monthly lease on the building in which the restaurant operates will increase by 20 percent at the beginning of the year. Her current prices are competitive with nearby restaurants of similar quality. However, she is now considering raising her prices by 20 percent to offset the increase in her monthly rent. Would you recommend that she raise prices? a. Yes - the increase in lease...

The Cicero Italian Restaurant was founded by Anthony Tanaglia in 1947 in Cicero, Illinois, a suburb of Chicago.

The Cicero Italian Restaurant was founded by Anthony Tanaglia in 1947 in Cicero, Illinois, a suburb of Chicago. He built the business with his family from a small pizza and pasta restaurant to 10 locations in the Chicago area. Michael Tanaglia, Anthony’s grandson, moved to Arizona to escape the cold Chicago winters and opened a restaurant in the Chandler area. The Arizona restaurant gained momentum thanks to the Chicago-style pizza and quality Italian dishes. Anthony decided to expand operations...

21.39) Researchers gave 20 index cards to a waitress at an Italian restaurant in New Jersey....

21.39) Researchers gave 20 index cards to a waitress at an Italian restaurant in New Jersey. Before delivering the bill to each customer, the waitress randomly selected a card and wrote on the bill the same message that was printed on the index card. 20 of the cards had the message "The weather is supposed to be really good tomorrow. I hope you enjoy the day!" Another 20 cards contained the message "The weather is supposed to be not so...

Question