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Brrunno [24]
2 years ago
7

Two forces are exerted on an object in the vertical direction: a 20 N force downward and a 10 N force upward. The mass of the ob

ject is 25 kg. (1) What are some possibilities about the motion of this object? (2) Represent the motion of the object with a force diagram and a motion diagram.
Physics
1 answer:
VMariaS [17]2 years ago
6 0

Answer:

They are equal.

Explanation:

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A 35.9 g mass is attached to a horizontal spring with a spring constant of 18.4 N/m and released from rest with an amplitude of
lidiya [134]

Answer:

7.74m/s

Explanation:

Mass = 35.9g = 0.0359kg

A = 39.5cm = 0.395m

K = 18.4N/m

At equilibrium position, there's total conservation of energy.

Total energy = kinetic energy + potential energy

Total Energy = K.E + P.E

½KA² = ½mv² + ½kx²

½KA² = ½(mv² + kx²)

KA² = mv² + kx²

Collect like terms

KA² - Kx² = mv²

K(A² - x²) = mv²

V² = k/m (A² - x²)

V = √(K/m (A² - x²) )

note x = ½A

V = √(k/m (A² - (½A)²)

V = √(k/m (A² - A²/4))

Resolve the fraction between A.

V = √(¾. K/m. A² )

V = √(¾ * (18.4/0.0359)*(0.395)²)

V = √(0.75 * 512.53 * 0.156)

V = √(59.966)

V = 7.74m/s

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2 years ago
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What is runoff water?
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Colloid is an intermediate state of solution and suspension​
snow_tiger [21]
True, because it is the state between solid and liquid
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In the given problem, the singing of an opera singer caused a drinking glass to shatter.

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2 years ago
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