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3 years ago

Please match the correct letter to the scenario. *****Worth 50 POINTS*WILL MARK BRAINLIEST

Physics

1 answer:

MissTica3 years ago

7 0

Answer:1=C 2=A 3=B 4=E 5=G 6=G 7=A 8=E 9=C 10=A

Explanation:

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Why does the Polaris appear to remain stationary in the night sky when other stars show an apparent pattern?

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Because one pole of the Earth's axis of rotation (the North one) points
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the bump rotate around the whole edge, like a clock, once a day. But
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2 years ago

Two trains are blowing their whistles. The first train is stationary, and the

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3 years ago

For an object to be classified as a ____, it must meet certain definite criteria: It must be massive enough to pull itself into

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3 years ago

A boat is traveling at an initial velocity of 2.7 meters per second in the positive direction. It accelerates at a rate of 0.15

cupoosta [38]

Answer:

$\boxed {\boxed {\sf 4.5 \ m/s \ in \ the \ positive \ direction}}$

Explanation:

We are asked to find the final velocity of the boat.

We are given the initial velocity, acceleration, and time. Therefore, we will use the following kinematic equation.

$v_f= v_i + at$

The initial velocity is 2.7 meters per second. The acceleration is 0.15 meters per second squared. The time is 12 seconds.

$v_i$ = 2.7 m/s
a= 0.15 m/s²
t= 12 s

Substitute the values into the formula.

$v_f = 2.7 \ m/s + (0.15 \ m/s^2)(12 \ s)$

Multiply the numbers in parentheses.

$v_f= 2.7 \ m/s + (0.15 \ m/s/s * 12 \ s)$

$v_f = 2.7 \ m/s + (0.15 \ m/s *12)$

$\v_f=2.7 \ m/s + (1.8 \ m/s)$ $v_f=2.7 \ m/s + (1.8 \ m/s)$

Add.

$v_f=4.5 \ m/s$

The final velocity of the boat is <u>4.5 meters per second in the positive direction.</u>

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2 years ago

You walk forward at 1.5 m/s for 8s. Your friend decides to walk faster and starts out at 2.0 m/s for the first 4 s. Then she slo

Troyanec [42]

The first thing you should know is that the distance is equal to the speed per time.
Therefore if You walk forward at 1.5 m / s for 8s
d = 1.5t [0,8] s
Your friend decides to walk faster and starts at 2.0 m / s for the first 4 s.
d = 2t [0,4] s
Then she slows down and walks forward at 1.0 m / s for the next 4s
d = t + 4 [4,8] s
Who walked farther?
They both walked the same distance
12 meters

6 0

3 years ago

Please match the correct letter to the scenario. ***********Worth 50 POINTS*******WILL MARK BRAINLIEST

Please match the correct letter to the scenario. *****Worth 50 POINTS*WILL MARK BRAINLIEST