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
vredina [299]
3 years ago
14

I give a ball a push on an acclivity. The "start velocity" is on 7m/s. The time it took the ball to get back to me was 10 second

s. The acceleration is a constant. How much is the acceleration?
Physics
2 answers:
kozerog [31]3 years ago
8 0

Answer:

-1.4 m/s²

Explanation:

The initial velocity is 7 m/s.  When the ball rolls back, its velocity is -7 m/s.

Acceleration is change in velocity over change in time.

a = Δv / Δt

a = (-7 m/s − 7 m/s) / 10 s

a = -1.4 m/s²

Degger [83]3 years ago
3 0

Answer:

7÷10

Explanation:

initial velocity=7m/s

final velocity=0m/s

You might be interested in
What type of reaction feels cold to the touch? A. Endothermic, because energy is being released into the surroundings B. Endothe
Crazy boy [7]

Answer:

D. Exothermic, because energy is being absorbed from the surroundings

Explanation:

This is true about the Exothemic reaction due to the fact that, the reaction occurs outside the body. During this reaction, the energy being absorbed <em>from the surrounding environment will hit the body surface thereby creating the coldness due to the heat given out from the body  being minimal.</em>

8 0
3 years ago
Read 2 more answers
A passenger on a Ferris wheel moves in a vertical circle at a constant speed. Are the forces on her balanced?
vovikov84 [41]

C.  The force is a constant change,  because her position on the Ferris wheel will constantly change.  I believe this is the answer, but use sources to double check.  I might use different vocab. then your teachers.  

6 0
3 years ago
Identify the wave with the shortest wave length.
Valentin [98]

Answer:

d) gamma

Explanation:

hope i helped

7 0
2 years ago
Read 2 more answers
Dont use me for points please i need help, (circuits for physics)
zhannawk [14.2K]

Answer:

B, A, A, B

Explanation:

Just trust me on this one.

3 0
2 years ago
______ is most resistant to thermal energy transfers. a. copper wire b. aluminum foil c. water d. foam insulation
Reika [66]

Answer:

Water

Explanation:

Because it does not conduct much energy.

8 0
3 years ago
Other questions:
  • Which of the following is an explanation of how the natural world works, based on experimentation?
    13·2 answers
  • Which statements describe how a machine can help make work easier? Select two options.
    9·1 answer
  • Explain how you can use Boyle's law to determine the new volume of gas when its pressure is increased from 270kPa to 540kPa? The
    6·1 answer
  • On April 26, 1939, Great Britain did this in response to Hitler's aggressive moves?
    11·1 answer
  • Which statements accurately describe sound waves? Check all that apply
    11·2 answers
  • Three point charges lie in a straight line along the y-axis. A charge of q1 = -10.00 µC is at y = 6.40 m, and a charge of q2 = -
    6·1 answer
  • Heated lithium atoms emit photons of light with an energy of 2.961 × 10−19 J. Calculate the frequency and wavelength of one of t
    11·1 answer
  • What do we call the energy that is transferred to
    12·1 answer
  • A 1.0 kg ball falls from rest a distance of 19.6 m.
    8·1 answer
  • Using the formula below, calculate the kinetic energy of the 6 gram stone going 10 Mph
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!