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Damm [24]
3 years ago
8

A car traveling due east at 20 m/s reverses its direction over a period of 10 seconds so that it is now traveling due west at 20

m/s. What is the direction of the car's average acceleration over this period?a- The car's average acceleration points due west.b- The car's average acceleration is zero.c- The car's average acceleration points due east.d- The direction of the car's average acceleration cannot be determined from the given information.
Physics
1 answer:
Murrr4er [49]3 years ago
6 0

Answer:

The car's average acceleration points due west.

Explanation:

Resolving the acceleration will give a resultant due west

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aivan3 [116]

Answer:

The height of the package when it was released was 1102.5 meters

Explanation:

A package is dropped from a hovering helicopter

Dropped means the initial velocity of the package is zero

The package takes 15 seconds to strike the ground

Ignore the air resistance

We need to know the height of the package when it was released

h=ut+\frac{1}{2}gt^{2}, where h is the height of the package

from the ground, u is the initial velocity, g is the acceleration of gravity

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u = 0 , t = 15 seconds , g = 9.8 m/s²

h=(0)(15)+\frac{1}{2}(9.8)(15)^{2}

h=0+1102.5

h = 1102.5 meters

<em>The height of the package when it was released was 1102.5 meters</em>

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3 years ago
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What is a hypothesis?
Likurg_2 [28]

Answer:

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A coil consists of 180 turns of wire. Each turn is a square of side d=30 cm, and a uniform magnetic field directed perpendicular
alexira [117]

Answer:

Emf induced i equal to 329.4 volt

Explanation:

Note : Here i think we have to find emf induced in the coil

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4 years ago
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