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Lynna [10]
3 years ago
15

What does Force Means​

Physics
2 answers:
BartSMP [9]3 years ago
8 0
Yeah What he said lol
zubka84 [21]3 years ago
3 0

Answer:

strength or energy as an attribute of physical action or movement.

Explanation:

coercion or compulsion, especially with the use or threat of violence.

this is from google

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A high-jump athlete leaves the ground, lifting her center of mass 1.8 m and crossing the bar with a horizontal velocity of 1.4 m
Romashka [77]

Answer:

The minimum speed when she leave the ground is 6.10 m/s.

Explanation:

Given that,

Horizontal velocity = 1.4 m/s

Height = 1.8 m

We need to calculate the minimum speed must she leave the ground

Using conservation of energy

K.E+P.E=P.E+K.E

\dfrac{1}{2}mv_{1}^2+0=mgh+\dfrac{1}{2}mv_{2}^2

\dfrac{v_{1}^2}{2}=gh+\dfrac{v_{2}^2}{2}

Put the value into the formula

\dfrac{v_{1}^2}{2}=9.8\times1.8+\dfrac{(1.4)^2}{2}

\dfrac{v_{1}^2}{2}=18.62

v_{1}=\sqrt{2\times18.62}

v_{1}=6.10\ m/s

Hence, The minimum speed when she leave the ground is 6.10 m/s.

6 0
3 years ago
Nicolaus Copernicus was a Polish astronomer who is best known for the theory that the sun is near the center of the universe and
serg [7]

Answer:

DOUBLE CHECK BECUASE IM ONLY 68.030303039999999% SURE!!!

(ANSWER IS HERE)    ( D) It lacked practical examples in supporting theory

Know it's not B becuase there was no scientific community back then.

Know it's not C becuase it actully had lots of evidence.

But I'm not sure about A

3 0
3 years ago
Two wires are made of the same material and have the same length but different radii. They are joined end-to- end and a potentia
Radda [10]

Answer:

Current

I think The choose (B)

B. Electric current

6 0
2 years ago
What is the centripetal acceleration of a ball on a string that is whirled horizontally over a boy’s head? The radius of the cir
Leya [2.2K]
Well the centripetal acceleration would be 9.82 squared. That is the correct answer. I hope this helped you. Have a great day! :)
4 0
3 years ago
Read 2 more answers
What is displacement
saveliy_v [14]
This is what wiki says hope it helps
A displacement is a vector whose length is the shortest distance from the initial to the final position of a point P.[1] It quantifies both the distance and direction of an imaginary motion along a straight line from the initial position to the final position of the point.

A displacement may be also described as a 'relative position': the final position of a point (Sf) relative to its initial position (Si), and a displacement vector can be mathematically defined as the difference between the final and initial position vectors:
4 0
3 years ago
Read 2 more answers
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