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
lbvjy [14]
3 years ago
15

A small rubber ball is launched by a compressed-air cannon from ground level with an initial speed of 17.3 m/s directly upward.

Choose upward as the positive direction in your analysis. (a) What is the maximum height above the ground that the ball reaches?
Physics
1 answer:
elena-s [515]3 years ago
7 0

Answer:

h=15.27m

Explanation:

Since at maximum height the vertical velocity must be null it's better to use the formula:

v_f^2=v_i^2+2ad

We will use this formula for the vertical direction, choosing the upward direction as the positive one, so we have:

0=v_i^2+2ah

or

h=-\frac{v_i^2}{2a}

which for our values is:

h=-\frac{(17.3m/s)^2}{2(-9.8m/s^2)}=15.27m

You might be interested in
What is the net force on this object f air = 400n (up) fgrav=600n (down)
n200080 [17]
Fnet=F1+F2 or Fnet=F1-F2
So 400n up - 600n down
Fnet= 400-600= -200N
5 0
3 years ago
Read 2 more answers
When a force is acting at axis of rotation,why torque is zero?
Vikki [24]

Explanation:

see, torque=force × perpendicular distance

...that perpendicular distance is between axis of rotation and the point where force acts... so in above's case perpendicular distance is zero... so the torque is zero!

4 0
3 years ago
If an object 18 millimeters high is placed 12 millimeters from a diverging lens and the image is formed 4 millimeters in front o
tangare [24]
The correct answer is letter A. 6 millimeters. <span>If an object 18 millimeters high is placed 12 millimeters from a diverging lens and the image is formed 4 millimeters in front of the lens, the height of the image is 6 millimeters.
</span>
Solution:
18 / x = 12 / 4 
12x = 72
x = 6mm
7 0
3 years ago
Which situation best describes the act of reducing? paying bills online instead of sending paper through the mail donating gentl
Ugo [173]
In my opinion, i think the first one is the best one since we're cutting down on paper wasted in mails when its better to do it online.

"paying bills online instead of sending paper through mail"
3 0
3 years ago
Read 2 more answers
When practicing an oral presentation what can you do to prepare for the presentation
Igoryamba
When practicing an oral presentation, you can prepare by writing a draft and practice reading aloud what you are going to say before your oral presentation.
8 0
3 years ago
Other questions:
  • If you walk 3.0 km to the east and then 4.0 km to the north, what is the magnitude of your displacement from your original posit
    14·1 answer
  • While on vacation in the tropical Bahamas, Suzy decides to try out a water jet pack. She places the jet pack on her back (like y
    5·1 answer
  • Which of these statements best describes an effect of changes in Earth's magnetic field?
    9·2 answers
  • The average height of an apple tree is 4.00 meters. How long would it take an apple falling from that height to reach the ground
    15·1 answer
  • What has to happen to sediment in order for it to become sedimentary rock?
    7·2 answers
  • Regardless of their frequency, wavelength, or energy, all electromagnetic waves: A. travel only through the vacuum of space. B.
    5·1 answer
  • Kepler's third law is founded on a mathematical formula that is based on the inverse relationship between a planet's orbital vel
    9·2 answers
  • You can formulate a medical term, which is easy to pronounce by combing the root with a .
    11·1 answer
  • What is radioactivity?​
    9·2 answers
  • the gravitational force acts on all objects in proportion to their mass. neglecting air resistance, why don’t heavy objects fall
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!