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Valentin [98]
3 years ago
8

What is an object's change in position, or displacement, and the change in time over which that displacement occurred used to ca

lculate?
a. average velocity
b. inertia
c. average force
d. force of gravity
Physics
1 answer:
yulyashka [42]3 years ago
7 0
The answer is a  average velocity
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7.11x10^-3

Explanation:

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V1 = A2V2/A1

From the attachment I uploaded, we have a formula named equation 1 from which I have plugged in these values

P2 = 33000

P2 = 24000

P = 1000

r2 = 2.25

r1 = 4

When we put these values into the equation,

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6 0
3 years ago
An object starts at 11 m/s with an acceleration of 12 m/s? What is its velocity after 4.5 seconds?
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Answer:

65 m/s

Explanation:

v=v0+at <=> v = 11 + 12 t ∧ t = 4.5 s <=> v = 11 + 12×4.5 <=> v = 65 m/s

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A woman on a bicycle traveling at 10 m/s on a horizontal road stops pedaling as she starts up a hill inclined at 4.0º to the hor
IrinaK [193]
The kinetic energy K = 0.5 * m * v² must be equal to the potential energy U = m * g * h.

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v velocity
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g = 9.81m/s²

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Solve for height h and transform to distance traveled.
(sin (4°) = height / distance)

6 0
3 years ago
State which of the three materials would allow the thermometer to measure the
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i dont know

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2 years ago
An engineering firm is designing a ski lift. The wire rope needs to travel with a linear velocity of 2.0 meters per second, and
Mazyrski [523]

Answer:

The diameter of the bull-wheel is 3.82

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Given that,

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\omega=10\times\dfrac{2\pi}{60}

\omega=1.0472\ rad/s

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r=\dfrac{v}{\omega}

Put the value into the formula

r=\dfrac{2.0}{1.0472}

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D=2r

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D=3.82\ m

Hence, The diameter of the bull-wheel is 3.82 m.

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3 years ago
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