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Elena L [17]
3 years ago
12

Which phrase best describes a gravitational force?

Physics
2 answers:
ValentinkaMS [17]3 years ago
7 0

Answer:

I'm pretty sure it should be B

Explanation:

When you think of gravity, it pulls objects towards the ground by force. So, gravitational force should be pulling objects towards each other. Please let me know if this isn't right! I hope that helps! ^^

saveliy_v [14]3 years ago
5 0

Answer:

B or A Try your best to choose Between those 2 if not I'll help u

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Hola puntos gratis !!!!!!!!!!!!!!!!!
mina [271]

Answer:

gracias

Explanation:

7 0
3 years ago
Read 2 more answers
The capacitor is now reconnected to the battery, and the plate separation is restored to d. A dielectric plate is slowly moved i
Paha777 [63]

Answer:

U2 = KAε0V2 / (2d)

Explanation:

The dielectric constant K just replaces the "3″ from Part B.

8 0
3 years ago
A car is moving north on a freeway. If a bug is flying south on the freeway, is the momentum of the bug positive or negative?
faltersainse [42]

Negative

Because the car is moving up and the bug is moving down. but it also depends on the weather so choice between one of those two I think is Negative but I may be wrong.

3 0
2 years ago
jet is flying at 500 mph east relative to the ground. A Cessna is flying at 150 mph 60° north of west relative to the ground. Wh
Greeley [361]

Answer:

C. 590 mph

\vert v_{cj}\vert=589.49\ mph

Explanation:

Given:

  • velocity of jet, v_j=500\ mph
  • direction of velocity of jet, east relative to the ground
  • velocity of Cessna, v_c=150\ mph
  • direction of velocity of Cessna, 60° north of west

Taking the x-axis alignment towards east and hence we have the velocity vector of the jet as reference.

Refer the attached schematic.

So,

\vec v_j=500\ \hat i\ mph

&

\vec v_c=150\times (\cos120\ \hat i+\sin120\ \hat j)

\vec v_c=-75\ \hat i+75\sqrt{3}\ \hat j\ mph

Now the vector of relative velocity of Cessna with respect to jet:

\vec v_{cj}=\vec v_j-\vec v_c

\vec v_{cj}=500\ \hat i-(-75\ \hat i+75\sqrt{3}\ \hat j )

\vec v_{cj}=575\ \hat i-75\sqrt{3}\ \hat j\ mph

Now the magnitude of this velocity:

\vert v_{cj}\vert=\sqrt{(575)^2+(75\sqrt{3} )^2}

\vert v_{cj}\vert=589.49\ mph is the relative velocity of Cessna with respect to the jet.

8 0
3 years ago
What situation would give you a mechanical advantage? *
const2013 [10]
D. Using a fixed-pulley system
3 0
3 years ago
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