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marysya [2.9K]
3 years ago
7

Deduce an expression for the gravitational potential

Physics
1 answer:
bonufazy [111]3 years ago
6 0
M*g*h

G is the gravity which is usually a fixed number (10)
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sergey [27]

Answer:

25.

Explanation:

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What is a non-example of gravitational force?
qaws [65]
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3 years ago
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2.08
natka813 [3]

Calculate its average speed in meters per second

Answer:

5.77 m/s

Explanation:

Speed= Distance/Time

Distance= 40+ half of 40= 40+20= 60 m

Time= 8.8+1.6=10.4 s

Average speed= 60/10.4=5.769230769  m/s

Approximately, the average speed is 5.77 m/s

5 0
3 years ago
A particle moves along the x axis so that its velocity at time t is given by v(t)=
vodomira [7]

Answer:

a = 0.7267 ,  acceleration is positive therefore the speed is increasing  

Explanation:

The definition of acceleration is

         a = dv / dt

they give us the function of speed

         v = - (t-1) sin (t² / 2)

         a = - sin (t²/2) -  (t-1) cos (t²/2)  2t / 2

         a = - sin (t²/2) - t (t-1)  cos (t²/2)

the acceleration for t = 4 s

          a = - sin (4²/2) - 4 (4-1) cos (4²/2)

          a = -sin 8 - 12 cos 8

remember that the angles are in radians

          a = 0.7267

the problem does not indicate the units, but to be correct they must be m/s²

We see that the acceleration is positive therefore the speed is increasing

6 0
3 years ago
Which of the following was NOT a department in Washington's first cabinet?
Bingel [31]

Answer:

I believe its C: Secretary of War. I hope this helped :)

Explanation:

6 0
3 years ago
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