To Mr. H's disgust, a 450-g black crow is raiding the recently-filled bird feeder. As Mr. H runs out the back door with his broom in an effort to scare the crow away, it pushes off the 670-gram feeder with a takeoff speed of 1.5 m/s. Determine the speed at which the feeder initially recoils backwards.
1 answer
Question:
To Mr. H's disgust, a 450-g black crow is raiding the recently-filled bird feeder. As Mr. H runs out the back door with his broom in an effort to scare the crow away, it pushes off the 670-gram feeder with a takeoff speed of 1.5 m/s. Determine the speed at which the feeder initially recoils backwards.
Answers
Answer:Actually it's 2.50 m/s, sorryExplanation:It is solved by using momentum conservation equationcombined mass of crow and feeder = 450+670=1120 gmlet the recoil speed of feeder be v m/sThen applying momentum conservation we get;1120×1.5 = 670×vv= 2.50 m/sthe speed at which the feeder initially recoils backwards = 2.50 m/s
Similar Solved Questions
1 answer
In the expression ab, a is called the base and bis called the numerator or power.
In the expression ab, a is called the base and bis called the numerator or
power....
1 answer
What economic policy of great Britain contributed to the rebellion of the colonists against british policies
What economic policy of great Britain contributed to the rebellion of the colonists against british policies...
1 answer
Which of the following best describes Wart's attitude as he pulls the sword from the stone in the selection from The Once and Future King? A. He is uneasy and confused while holding the sword. B. He is proud that only he can remove the sword from the stone. C. He is unaware of the significance of being able to pull out the sword. D. He is afraid that someone will suddenly realize that he has stolen the sword.
Which of the following best describes Wart's attitude as he pulls the sword from the stone in the selection from The Once and Future King? A. He is uneasy and confused while holding the sword. B. He is proud that only he can remove the sword from the stone. C. He is unaware of the significance of be...
2 answers
Steven has a counter that is yellow on one side and blue on the other. The counter is shown below: Steven flips this counter 22 times. What is the probability that the 23rd flip will result in the counter landing on yellow side up? 22/23 1/2 1/4 1/22
Steven has a counter that is yellow on one side and blue on the other. The counter is shown below:
Steven flips this counter 22 times. What is the probability that the 23rd flip will result in the counter landing on yellow side up?
22/23
1/2
1/4
1/22...
1 answer
A person invested $420 in an account growing at a rate allowing the money to double every 10 years. How long, to the nearest tenth of a year would it take for the value of the account to reach $960?
A person invested $420 in an account growing at a rate allowing the money to double
every 10 years. How long, to the nearest tenth of a year would it take for the value of
the account to reach $960?...
1 answer
You decide to clean the bathroom. You notice that the shower is covered in a strange green slime . you try to get rid of this slime by adding lemon juice to water. You spray half of the shower the with lemon juice mixture and the other half of the shower with water. After three days of spraying equal amounts 3 times a day, there is no change in the appearance of the green slime on either side of the shower. IV DV CV EG CG
You decide to clean the bathroom. You notice that the shower is covered in a strange green slime . you try to get rid of this slime by adding lemon juice to water. You spray half of the shower the with lemon juice mixture and the other half of the shower with water. After three days of spraying equa...
1 answer
Julie drives 100 mi to Grandmother's house. On the way to Grandmother's, Julie drives half the distance at 44.0mph and half the distance at 65.0 . On her return trip, she drives half the time at 44.0mph and half the time at 65.0mph . 1)What is Julie's average speed on the way to Grandmother's house? 2)What is her average speed on the return trip? *Express your answer with the appropriate units.
Julie drives 100 mi to Grandmother's house. On the way to Grandmother's, Julie drives half the distance at 44.0mph and half the distance at 65.0 . On her return trip, she drives half the time at 44.0mph and half the time at 65.0mph .
1)What is Julie's average speed on the way to Grandmother's house...
1 answer
A writer for a scientific journal would like to help readers understand the rapid increase in water pollution over the last twenty years. Which print or graphic feature would most effectively accomplish this task? a mapb chart/graph c subheading d photograph
A writer for a scientific journal would like to help readers understand the rapid increase in water pollution over the last twenty years. Which print or graphic feature would most effectively accomplish this task? a mapb chart/graph c subheading d photograph...
1 answer
Use the following to answer problems 10-11 A linear model to predict price of a particular car from its mileage was calculated from a sample of 38 cars during the week of January 2011 (using Kelly Blue Book).
Use the following to answer problems 10-11
A linear model to predict price of a particular car from its mileage was calculated from a sample
of 38 cars during the week of January 2011 (using Kelly Blue Book)....
1 answer
If you need to set up direct deposit, which information from your check would you likely need? Check number Memo line Numerical amount Routing number
If you need to set up direct deposit, which information from your check would you likely need?
Check
number
Memo
line
Numerical
amount
Routing
number...
2 answers
Which of the following most inspired the inclusion in the Declaration of Independence of the right of the people to revolt against a tyrannical government? The English Bill of Rights Montesquieu's De l'esprit des Lois (Spirit of Laws) Locke's Second Treatise The Virginia House of Burgesses
Which of the following most inspired the inclusion in the Declaration of Independence of the right of the people to revolt against a tyrannical government?
The English Bill of Rights
Montesquieu's De l'esprit des Lois (Spirit of Laws)
Locke's Second Treatise
The Virginia House of Burgesses...
1 answer
A washer and dryer cost $987 combined.The washer cost $37 more than the dryer.What is the cost of the dryer
A washer and dryer cost $987 combined.The washer cost $37 more than the dryer.What is the cost of the dryer...
1 answer
The average car decreases in value by about 15% per year. If a car's original value is $28,000, which function best represents its value, y, after t years? A. y=28,000(1+15)^t B. y=28,000(1+0.15)^tC. y=28,000(1-15)^t D. y=28,000(1-0.15)^t
The average car decreases in value by about 15% per year. If a car's original value is $28,000, which function best represents its value, y, after t years? A. y=28,000(1+15)^t B. y=28,000(1+0.15)^tC. y=28,000(1-15)^t D. y=28,000(1-0.15)^t...
1 answer
What does the metaphor mountain goats leaped like dancers from rock to rock mean
What does the metaphor mountain goats leaped like dancers from rock to rock mean...
2 answers
Which button is not present in the font group Home tab? -B -U -I -D
Which button is not present in the font group Home tab?
-B
-U
-I
-D...
2 answers
Construct the line perpendicular to ⇒NO at point P.
Construct the line perpendicular to ⇒NO at point P....
1 answer
1. What is the central measure found by adding all numbers in the data set and then dividing by the number of values A. data B. mean C. median D. mode
1. What is the central measure found by adding all numbers in the data set and then dividing by the number of values A. data B. mean C. median D. mode...