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REY [17]
3 years ago
14

Which best explains why we are able to accelerate forward when starting to run? A) The runner's upper body quickly leans forward

, causing the entire body to begin accelerating forward. B) As one leg moves backward, it provides an opposite force for the other foot to move forward. C) The foot not touching the ground propels the entire body as it swings forward. D) The striking foot pushes backward against the ground. The friction with the ground provides an equal and opposite force forward.
Physics
2 answers:
Neko [114]3 years ago
7 0

Answer:

D.The striking foot pushes backward against the ground. The friction with the ground provides an equal and opposite force forward

kolezko [41]3 years ago
5 0

Answer:

d

Explanation:

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Which statement describes the distribution of charge in an atom?
iren2701 [21]

Answer:

hope this helps

Explanation:

one in which a positively charged nucleus is surrounded by one or more negatively charged electrons.

8 0
3 years ago
An elevator provides 21 000 w of power during a 12 s ride. how much work does the elevator do?
Mice21 [21]

Answer:

252000 J

Explanation:

W = Pt

W = (21000 w)(12 s)

W =252000 J

4 0
3 years ago
Light travels in a straight line at a constant speed of 300 000 km/s what is the lights acceleration
exis [7]

Answer:

it's acceleration is 0

Explanation:

since it is travelling at a constant speed it is not accelerating so its acceleration is 0

3 0
4 years ago
How does a sound wave transfer energy to your ears ?
horrorfan [7]

Answer:

A. Particles in air move in circles as the wave moves forward.

B. Particles in air move forward but not backward as the wave moves

forward.

C. Particles in air move up and down as the wave moves forward.

✔ D. Particles in air move forward and backward as the wave moves

forward.

Explanation:

The waves transfer energy from the source of the sound, e.g. a drum, to its surroundings. Your ear detects sound waves when vibrating air particles cause your ear drum to vibrate. The bigger the vibrations the louder the sound.

7 0
3 years ago
Read 2 more answers
2) Anna starts running at t = 0 and reaches 170 m from the start point
docker41 [41]

Answer:

14.167 m/s

Explanation:

Average speed = Total distance/Total time taken.

Average speed = 170/12 - 0 = 170/12 = 14.167 m/s

8 0
3 years ago
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