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Olenka [21]
2 years ago
14

A downhill skier reaches the steepest part of a trail. Her speed increases from 9 m/s to 18 m/s in 3 seconds. What is her averag

e acceleration
Physics
1 answer:
Cerrena [4.2K]2 years ago
8 0

Answer:

3m/s²

Explanation:

final velocity - initial velocity

______________________ = Acceleration

           elapsed time

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What is electric current
Bond [772]

Answer:

Electric current is electric charge in motion. It can take the form of a sudden discharge of static electricity, such as a lightning bolt or a spark between your finger and a ground light switch plate. ... Most electric charge is carried by the electrons and protons within an atom.

Explanation:

because it is

5 0
3 years ago
A tiger started running when it saw a deer running at uniform velocity 2m/s at 15m far from it ..if the tiger ran at acceleratio
Masteriza [31]
You need to set their position functions equal to one another and so for the time t when that is true. That is when the tiger and the deer are in the same place meaning the tiger catches the dear
Xdear= 2t+15 deer position function.
(I integrated the velocity function )
To get the Tigers position function you must integrate the acceleration twice. This becomes
Xtiger=t^2
Now t^2=2t+15
Time t is when the tiger catches the deer
t^2-2t-15=0
(t-5)(t+3)=0 factored
t=5s is the answer you use (t=-3 is a meaningless solution)
7 0
3 years ago
A group of students are playing tug-of-war. The students on both
Andrews [41]

Answer:

newton's first law

Explanation:

this is because newton's first law of motion states that every object will continue in its state of rest or uniform motion in a straight line unless a resultant force acts on it.

hope this helps, if you want more elaboration, tell me

7 0
2 years ago
The abbreviation ucs stands for
LenaWriter [7]
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I hope I helped :3
3 0
3 years ago
Read 2 more answers
Which of these does not depend on a close binary system to occur?
Alinara [238K]

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B type ii supernova is the right answer

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