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mihalych1998 [28]
3 years ago
5

At what point in a projectile’s trajectory does it experience a minimum velocity? as soon as it is launched half way to its high

est point at its highest point just before it lands
Physics
2 answers:
andrew-mc [135]3 years ago
6 0

Answer:

at the highest point

Explanation:

velocity of a particle becomes minimum when the  particle projected halfway or from ground reaches its maximum height.

VLD [36.1K]3 years ago
5 0
No matter what direction a projectile is traveling, its velocity
will be minimum at the highest point in its trajectory.

I just realized ... that's also true of an Earth satellite.
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A negative test charge will accelerate toward regions of ________ electric potential and ________ electric potential energy.
dalvyx [7]

Answer: higher and lower

Explanation:

 charge in an electric field will experience a force in the direction of decreasing potential energy. Since the electric potential energy of a negative charge is equal to the charge times the electric potential the direction of decreasing electric potential energy is the direction of increasing electric potential.

5 0
3 years ago
Can any one please help
Alenkasestr [34]

Answer:

20meters per second

Explanation:

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8 0
3 years ago
A train has a constant speed of 10 m/s around a track with a diameter of 45 m what is the centripal acceleration?
Bumek [7]

Answer:

a_{c}= 4.44\frac{m}{s}

Explanation:

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a_{c}=\frac{v^{2}}{r}, with v the speed, r the radius of the track that is half of the diameter (22.5 m)

a_{c}=\frac{10^{2}}{22.5}

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5 0
3 years ago
Newton’s first law states that if an objects velocity is changing a _____ must be acting on it.
klio [65]
<h3>Answer: </h3>

(a)

<h3>Explanation </h3>
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f = ma

since acceleration is the changing of velocity as its formula is

\frac{v2 - v1}{t}

Thus, a force must be acting on an accelerating/decelerating object

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  • Changing velocity is already acceleration

  • inertia is the term used to describe Newtons first law

6 0
3 years ago
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