1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
natulia [17]
3 years ago
12

When a ballplayer throws a ball straight up, by how much does the speed of the ball decrease each second while ascending? In the

absence of air resistance, by how much does its peed increase each second while it is descending? How much time is required for its ascent as compared to its descent?
Mathematics
1 answer:
sattari [20]3 years ago
3 0

Answer:

Step-by-step explanation:

We are in the case of vertical shot. If we neglect air resistance, the only force acting over the ball is gravity. As gravity acts down to earth and the ball is going up, speed´s ball  will be decreasing by gravity ( 9.8 m/sec²) That means the speed of the ball will be decreasing 9.8 m/sec, each second.

When the ball get the maximum height  Vy = 0 then the ball stars descending, and when the ball is descending again gravity is the only force acting gravity acts in the same direction as the ball´s movement, so the ball´s speed will increase at a rate of 9.8 m/sec  each second.

It is a well known fact that the time of the ball to get maximum height is the same as for the ball to fall down to earth. In other words time from the beginning of the movement up to maximum height is equal to time for the ball to fall down.

You might be interested in
You own a company that employs three salespeople, Quentin, Michael and Bubba. Quentin makes 30% of the sales, Michael 45%, and B
borishaifa [10]

Answer:

Michael

Step-by-step explanation:

Look at the table below:

The probability of selecting a sale that was made by Quentin is .30, by Michael is .45 and by Bubba is .25.

Since Quentin completes paperwork 90% of the time, he doesn't complete paperwork 10% of the time, following this reasoning we can say that Michael doesn't complete paperwork 20% of the time and Bubba doesn't complete paperwork 15% of the time.

The probability of selecting a file and that it belongs to Quentin AND is incomplete is:

(Probability of selecting a Quentin's file) x (Probability is a Quentin incomplete file) = (0.30)(0.10) = 0.03

Using this same method we have that the probability that it belongs to Michael and is incomplete is (.45)(.20) = 0.09

That it belongs to Bubba and it's incomplete is (0.25)(0.15) = 0.037

The highest of these probabilities is the one that corresponds to Michael: 0.09, therefore he is the most likely culprit.

8 0
4 years ago
I've got pizza you can have a slice if you come on remind <3
Sidana [21]

Answer:

5<3

Step-by-step explanation:

8-3= 5

7 0
3 years ago
Y = -2x - 1; (2,-1)<br> Slope intercept form
zlopas [31]

Answer:

x=<u>1</u>

2

hope it helps

Step-by-step explanation:

–1

x=0.5,x=2

8 0
3 years ago
I don’t get anything
Alina [70]
N(t)= 15000 e^(.07 t)

let's assume 2005 is 0 and 2013 will be 8 years.

n(8)=15000e^(.07*8) = 26260 growth of foxes.
7 0
3 years ago
How do you Divide 61,986 ÷23
Minchanka [31]

Answer:

2695.04348

Well, I don't want to do ALL of the work but I'll give you an idea of how I got it:

First, ask yourself, "How many times does 23 go into 61?" which is the same thing as 61 divided by 23.

23 times 2 equals 46. I chose this number because 23 times 3 equals 69 and that is too much.

(The first digit is 2)

So 61 minus 46 equals 15. Then you bring down the 9 and divide 159 by 23.

23 times 6 is 138 and the closest you will get. Again, 159 minus 138 equals 21.

(Now the second digit of the answer is 6)

Bring down the 8 to get 218. 218 divided by 23 equals 9 (well, not exactly, but you get what I mean). 23 times 9 equals 207. 218 minus 207 equals 11.

(Don't forget, the third digit in the answer is now 9)

Keep doing this until you get your final answer, which I already gave you at the top to double check. When you reach the last number of 61,986 (which is 6), go into the decimal place and keep on working from there.

6 0
3 years ago
Other questions:
  • What is the area of a right triangle with a hypotenuse measuring 5 inches and a base measuring 4 inches?
    15·2 answers
  • A boat traveld 27 miles in 2 hours. At this rate ow many miles will the boat travel in .5 hour?
    6·1 answer
  • BRANLIEST FOR THE RIGHT ANSWER!!!!
    8·2 answers
  • 1,000,000,000 meters equal 3 gigameters. True False
    7·1 answer
  • What is a another way to refer ro DCE
    11·1 answer
  • Will give brainliest for correct answer
    5·1 answer
  • Book price $ 60. The book went up in price on the 15th
    9·1 answer
  • Interest = $ 6400, rate = 4% time = 5 years ( if you don't know don't answer) please solve it correctly​
    11·1 answer
  • I need help with 3 problems.
    13·1 answer
  • Help? please i dont understand
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!