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kupik [55]
3 years ago
13

Which statement BEST describes the benefits of muscular fitness training?

Physics
1 answer:
Maru [420]3 years ago
6 0

Whatever the statement is, I know one thing for sure:  It's NOT included on the list of choices that you've provided.

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4. According to Newton third law what is the action force? The swimmer pushes against the water the water pushes back on the swi
marshall27 [118]
A.The swimmer pushes the water
C. the walls force against the ball
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3 years ago
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Ft-Fg= ma solve for a
densk [106]
The answer is a= Ft-Fg/m
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A constant friction force of 25 N acts on a 65-kg skier for 15 s on level snow. What is the skier’s change in velocity
nikdorinn [45]

Answer:

\Delta v=5.77m/s

Explanation:

Newton's 2nd Law relates the net force <em>F</em> on an object of mass <em>m </em>with the acceleration <em>a</em> it experiments by <em>F=ma.</em> In our case the net force is the friction force, since it's the only one the skier is experimenting horizontally and the vertical ones cancel out since he's not moving in that direction. Our acceleration then will be:

a=\frac{F}{m}

Also, acceleration is defined by the change of velocity \Delta v in a given time t, so we have:

a=\frac{\Delta v}{t}

Since we want the change in velocity, <em>mixing both equations</em> we conclude that:

\Delta v=at=\frac{Ft}{m}

Which for our values means:

\Delta v=\frac{Ft}{m}=\frac{(25N)(15s)}{(65Kg)}=5.77m/s

4 0
3 years ago
Which object has more gravitational potential energy
Sonja [21]

Answer:

need more context

Explanation:

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Please write a paragraph (5 sentence minimum) that describes convection in Earth's atmosphere.
ExtremeBDS [4]

Answer:

Earth's crust is covered by a densed air blanket called atmosphere. Due to which we feel warm even during night when there is no sun. The air near the atmosphere is less dense compared to the air near our crust. Similarly we can experience high pressure near the atmosphere comparelatively we experience less pressure near crust. The presence of atmosphere above us makes the wind fair sometimes stromy and also helps in pteperation of wind and breezes in earth's surface.

5 0
3 years ago
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