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Vlada [557]
2 years ago
14

. The Soviet Yuri Gagarin was the first human to orbit Earth true or false

Physics
1 answer:
Dmitrij [34]2 years ago
3 0

Answer:

true , I searched and got u the answer

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If the velocity of a runner changes from -2 m/s to -4 m/s over a period of time, the
Mnenie [13.5K]

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It will be A. So since its 2 times more the kinetic energy. But then you have to square it 2^2 = 4

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3 years ago
A sound can be ________ or _________.
marin [14]
A.
Sorry if it’s wrong
3 0
3 years ago
In a position vs. time graph, which of the following relationships is true? O The steeper the line the slower the velocity O The
Blizzard [7]

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dd

Explanation:

5 0
3 years ago
I need help getting started with number 8.
ratelena [41]

In #8, the distance and the (magnitude of displacement) are equal, because he crawled in a straight line.

Displacement = (straight-line distance from start-point to end-point) in the direction from start to end, regardless of what route was actually followed.

Displacement = 5m, in the negative direction.

In #9 . . . distance will be the same.  Displacement is going to be the same magnitude, but in the positive direction.

This is so simple that it's hard to talk about.  

In #8, "What was the bug's distance ?". "Distance was 5 meters.".  "What was the bug's displacement ?", "Displacement was 5 meters backwards."

In #9, What was the bug's distance ?". "Distance was 5 meters.".  "What was the bug's displacement ?", "Displacement was 5 meters forward."

4 0
3 years ago
A bicycle with 0.80-m-diameter tires is coasting on a level road at 5.6 m/s . A small blue dot has been painted on the tread of
skelet666 [1.2K]

Answer:

a)

14 rad/s

b)

11.2 m/s

Explanation:

a)

d = diameter of tire = 0.80 m

r = radius of tire = (0.5) d = (0.5) (0.80) = 0.40 m

v = speed of bicycle = 5.6 m/s

w = angular speed of the tire

Speed of cycle is given as

v = r w

5.6 = (0.40) w

w = 14 rad/s

b)

v' = speed of blue dot

Speed blue of dot is given as

v' = v + rw

v' = 5.6 + (0.40) (14)

v' = 11.2 m/s

4 0
3 years ago
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