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
Anon25 [30]
3 years ago
15

A ball is thrown straight upward and rises to a maximum

Physics
1 answer:
Leviafan [203]3 years ago
3 0

Answer:

Explanation:

As we know that the ball is projected upwards so that it will reach to maximum height of 16 m

so we have

v_f^2 - v_i^2 = 2 a d

here we know that

v_f = 0

also we have

a = -9.81 m/s^2

so we have

0 - v_i^2 = 2(-9.81)(16)

v_i = 17.72 m/s

Now we need to find the height where its speed becomes half of initial value

so we have

v_f = 0.5 v_i

now we have

v_f^2 - v_i^2 = 2 a d

(0.5v_i)^2 - v_i^2 = 2(-9.81)h

-0.75v_i^2 = -19.62 h

0.75(17.72)^2 = 19.62 h

h = 12 m

You might be interested in
How long does it take electrons to get from the car battery to the starting motor? Assume the current is 143 A and the electrons
Ostrovityanka [42]

Answer

the concentration of electron/ volume (n) = 8.5 × 10²⁸ /m³

the drift velocity of electron

v = \dfrac{I}{neA}

v = \dfrac{143}{8.5\times 10^{28}\times 1.6\times 10^{-19}\times 40.2 \times 10^{-6}}

v = 2.615 × 10⁻⁴ m/s

time require is

t=\dfrac{L}{v}

t=\dfrac{0.845}{2.615\times 10^{-4}}

t = 3231.35 s

5 0
3 years ago
A driver traveled 270 km in 3 hours. The driver’s destination was still 150 km away. What was the driver’s average speed at this
evablogger [386]
The driver was going 90 kilometers every hour.
6 0
2 years ago
Why are there temperature differences on the moon's surface even though there is no atmosphere present?
nika2105 [10]

The lack of an atmosphere means convection cannot happen on the moon. Therefore, there is no form of heat dissipation on regions in direct sunlight. In addition, the lack of an atmosphere means there is no greenhouse effect on the moon. This is why regions facing away from sunlight are very cold.  

4 0
3 years ago
A roller coaster travels 41.1 m at an angle of 40.0°
Iteru [2.4K]

Answer:

41.1 ÷ 40.0

Explanation:

Did you learn about Newton

3 0
2 years ago
What is a travelling wave and a standing wave? What are the differences between both of them?
solniwko [45]
What is a travelling wave and a standing wave? What are the differences between both of them?

Answer: First of all we have to understand that a traveling wave is an organized disturbance traveling with a well defined wave speed. On the other hand standing waves are the combination of period waves with their reflected waves creating double sided waves. The differences between them is that standing waves have nodes and antinodes while a traveling wave does not.

I hope it helps, Regards.
7 0
3 years ago
Read 2 more answers
Other questions:
  • An elevator is initially moving upward at a speed of 12.00 m/s. the elevator experiences a constant downward acceleration of mag
    5·1 answer
  • A sample has a mass of 15 g and a volume of 3mL
    11·1 answer
  • If an element has 7 valence electrons, how many dots will be in the elements dot diagram
    9·1 answer
  • An object of mass 11kg is falling in air and experiences a force due to air resistance of 35N. Determine the magnitude of net fo
    14·1 answer
  • What is the name of the first satellite sent into space
    7·1 answer
  • Stored energy and the energy of positions are ________________ energy
    9·1 answer
  • A car is being towed at a constant velocity on a horizontal road using a horizontal chain. The tension in the chain must be equa
    15·1 answer
  • Four point masses, each of mass 1.9 $kg$ are placed at the corners of a square of side 2.2 $m$. Find the moment of inertia of th
    5·1 answer
  • PLZZZZZ! HELP! I'll give brainliest to the first correct answer, five stars, and a heart!
    11·1 answer
  • Explain some of the things that you like to do, but could not if you did not have any thumbs.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!