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
Anestetic [448]
3 years ago
15

A ball is thrown horizontally. What is the ball's acceleration at its highest point

Physics
1 answer:
natka813 [3]3 years ago
4 0
At the highest point of motion the ball comes to rest momentarily,but it is being pulled down due to the effect of gravity,so its net acceleration is downwards. So,just after that point,it starts falling downwards.
You might be interested in
Electrical current is defined as
lbvjy [14]

The answer is B. It is measured in amperes.

5 0
3 years ago
What is the universe made of? Astronomers face an embarrassing conundrum: they don't know what 95% of the universe is made of​
rewona [7]

Answer:

This what they all been waiting for

I guess so

They been waiting for this sh,it for a long time didn't they

I'ma give it everything I got

Ayo Dougie park that X6 around the corner

Aye I'm just feeling my vibe right now

I'm feeling myself

Explanation:

3 0
4 years ago
The driver of a train moving at 23m/s applies the breaks when it pases an amber signal. The next signal is 1km down the track an
pochemuha

Answer:

3.2 m/s

Explanation:

Given:

Δx = 1000 m

v₀ = 23 m/s

a = -0.26 m/s²

t = 76 s

Find: v

This problem is over-defined.  We only need 3 pieces of information, and we're given 4.  There are several equations we can use.  For example:

v = at + v₀

v = (-0.26 m/s²) (76 s) + (23 m/s)

v = 3.2 m/s

Or:

Δx = ½ (v + v₀) t

(1000 m) = ½ (v + 23 m/s) (76 s)

v = 3.3 m/s

Or:

v² = v₀² + 2aΔx

v² = (23 m/s)² + 2(-0.26 m/s²)(1000 m)

v = 3.0 m/s

Or:

Δx = vt − ½ at²

(1000 m) = v (76 s) − ½ (-0.26 m/s²) (76 s)²

v = 3.3 m/s

As you can see, you get slightly different answers depending on which variables you use.  Since 1000 m has 1 significant figure, compared to the other variables which have 2 significant figures, I recommend using the first equation.

8 0
4 years ago
Câu 1. Trong dao động điều hoà, phát biểu nào sau đây là không đúng ?
kobusy [5.1K]

Answer:

whatttttttttttt

Explanation:

the ಠᴥಠಠᴥಠಠᴥಠಠᴥಠಠᴥಠಠᴥಠಠᴥಠಠᴥಠ

3 0
3 years ago
A scientific ___ must be testable and capable of being proven false
Bumek [7]
Hypothesis
A scientific hypothesis must be testable and capable of being proven false.
5 0
3 years ago
Read 2 more answers
Other questions:
  • NEED THIS ANSWERED ASAP!!!! IN MIDDLE OF TEST RN HELP PLZ
    9·2 answers
  • What are some real life examples of Newtons 3 laws of motion?
    13·1 answer
  • The origin of the Universe is still a question_____.
    15·2 answers
  • Who is famous for having introduced the three laws of motion?
    12·2 answers
  • What is the emf produced in a 1.5 meter wire moving at a speed of 6.2 meters/second perpendicular to a magnetic field of strengt
    6·2 answers
  • Where is the magnet that causes Earth’s magnetic field? What is this magnet made of?
    15·1 answer
  • A motorcycle of 170 kg is moving with a velocity 25m/ . Calculate the kinetic energy
    5·1 answer
  • Which of the following determines the natural frequency of an object?
    7·1 answer
  • Based on the image, which is not a wavelength?
    5·1 answer
  • A box with a mass of 20 kilograms is sliding down a ramp tilted at an angle θ of 30° to the horizontal. Determine the accelerati
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!