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Nikolay [14]
3 years ago
13

Samara stands on the ground. Gravity is applying a force to pull her body to the ground while the ground is applying the same am

ount of force to push back up against her body. Is this an example of a balanced force or action-reaction forces? Does Newton's third law still apply? Explain how you know.
Physics
1 answer:
Ierofanga [76]3 years ago
8 0
Mhm nice question gimmie a sec
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Which of the following could occur the net force acting on a truck is zero
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No net force means the truck reamains at rest or the motion of the truck does not change.

Explanation:

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If released, the chemical potential energy will cause the coal atoms and molecules to vibrate violently, and this internal kinet
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A. burn the coal

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What is the wavelength of a 1200 Hz sound wave?
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50cm

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3 years ago
Two balls of equal mass collide and stick together as shown in the figure. The initial velocity of ball B is twice that of ball
Mice21 [21]

The angle above the horizontal of the motion of mass A + B after the collision. as well as others are mathematically given as

  • \theta f = 26.3 \deg
  • vf/vA= 0.94
  • 2vf^2 / 5vA^2 = 0.35

<h3>What is  Collison equilibrium?</h3>

According to the collision hypothesis of chemistry, chemical reactions happen when two molecules or atoms collide.

Generally, the equation for Collison equilibrium is  mathematically given as

For horizontal motion

mvAx+m2vAx = 2mvfx

For vertical motion

-mvAy+m2vAy = 2mvfy

vfy = 1/2 vAy

\tan \theta f = vfy/vfx \\\\\tan \theta f = 1/3 vAy/vAx \\\\\tan \theta f  = vAy/vAx \\\\\theta f = tan-1 ( 1/3 tan (56) )\\\\

\theta f = 26.3 \deg

(b)

v fy = vf sin \theta f\\\\vAy = vA sin theta i\\\\vf/vA = vfy/vAy sin( \theta i)/sin(\theta f)\\\\vf/vA = 1/2 sin(56)/sin(26.3) \\\\

vf/vA= 0.94

(c)

Ef/Ei = \frac{(1/2 * (2m) * (vf)^2) }{ (1/2 * m * (vA)^2) + 1/2*m*(2vA)^2) ]}

2vf^2 / 5vA^2 = 0.35

In conclusion, The angle above the horizontal of the motion of mass A + B after the collision. as well as others

\theta f = 26.3 \deg

vf/vA= 0.94

2vf^2 / 5vA^2 = 0.35

Read more about collision theory

brainly.com/question/20628781

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2 years ago
A(n) ____ is a place or object used for comparison to determine of something is in motion
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<span>reference point is the answer.</span>
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4 years ago
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