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son4ous [18]
2 years ago
8

a plane passes over Point A with a velocity of 8,000 m/s north. Forty seconds later it passes over Point B with a velocity of 10

,000 m/s north. Which is the plane's acceleration from A to B ?
Physics
1 answer:
ValentinkaMS [17]2 years ago
8 0

Acceleration = (change in velocity) / (time for the change)

Change in velocity = (ending velocity) - (starting velocity)

Change in the plane's velocity = (10,000 m/s north) - (8,000 m/s north)

Change in the plane's velocity = 2,000 m/s north

Time for the change = 40 seconds

Acceleration = (2,000 m/s north) / (40 seconds)

<em>Acceleration = 50 m/s² north </em>

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iren [92.7K]

a person who alters their voice to make it seem as though the sound is coming from somewhere else, typically a puppet  is a ventriloquist.

<h3>Which ventriloquist was the best?</h3>

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<h3>Why is a ventriloquist good?</h3>

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7 0
1 year ago
A window washer is standing on a scaffold supported by a vertical rope at each end. The scaffold welghs 198 N and is 3.2 m long.
iris [78.8K]

Answer:

T_2 = 309 N

T_1 = 489 N

Explanation:

As we know that total tension in both the ropes is counter balancing the weight of scaffold and worker both

so here we will have

T_1 + T_2 = (m + M)g

now we have

T_1 + T_2 = 198 + 600 = 798 N

now we also know that net torque due to both tension force in the string with respect to the position of worker must be zero so that platform will remain in equilibrium and horizontal in position

so here we will have

T_1(1.12) + (198)(1.6 - 1.12) = T_2(3.2 - 1.12)

T_1+ 84.86 = 1.86 T_2

now from above two equations we will have

(1.86 T_2 - 84.86) + T_2 = 798

T_2 = 309 N

also we have

T_1 = 489 N

5 0
3 years ago
Please help!!!! It's due today!!!
Marina86 [1]
p=300kg x 4m/s^2= 1200kg m/s?
3 0
2 years ago
PLS HELPP HURRYYY
kupik [55]

Answer:

5 m/s

Explanation:

As the ball falls to the ground, it is acted upon by a force which is due to the gravitational force. Hence, the ball falls with an acceleration called the acceleration due to gravity.

Let us assume that the acceleration due to gravity (g) = 10 m/s², Since initially, the body was at rest, hence the initial velocity (u) = 0 m/s. The height to the ground (h) = 1.3 m. Hence using the equation of motion, the final velocity (v) is:

v² = u² + 2gh

Substituting:

v² = 0² + 2(10)(1.3)

v² = 26

v = √26 = 5

v = 5 m/s

5 0
3 years ago
An object has a density of 24g/cm3 and has a mass of 130g. What is the volume? Express
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5.47 cm3 bc 130/24 = 5.47
8 0
2 years ago
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