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4 years ago

Different forces were applied to five balls, and each force was applied for the same amount of time. The data is in the table.

Physics

2 answers:

emmainna [20.7K]4 years ago

6 0

C. It doubles I hope this helps and good luck

Alja [10]4 years ago

6 0

The impulse provided to the ball is equal to the change in momentum of the ball.

According to Newton's second law, The rate of change of momentum is directly proportional to the force applied. Hence, the equation can be written as:

Δp = F × t

Δp = change in momentum = Impulse

F = Force

t = time for which the force is applied

Now. if the force is doubled and the time remains same.

F(new) = 2F

t = t

Δp (new) = 2F × t

Δp (new) = 2 Δp (old)

Hence, the impulse gets doubled

Option C is correct.

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anzhelika [568]

Answer:

The magnitude of the acceleration is at its maximum value.

Acceleration = $\frac{-Ak}{m} (m/s)^{2}$

Explanation:

During simple harmonic motions such as the oscillation of a spring, at the two extremes of the motion, the acceleration of the mass becomes maximum. This is because this is the point where the force on the body is maximum.

The angular velocity $\omega=\sqrt{\frac{k}{m} }$

At points of maximum extension x, the maximum acceleration is given by the formula.

$a=-A\omega^{2}$

substituting in the value for $\omega$ , this implies that

$a= -A\times (\sqrt{\frac{k}{m} } )^{2}$

⇒ $a=\frac{-Ak}{m} (m/s)^{2}$

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3 years ago

In a very busy off-campus eatery one chef sends a 201 g broccoli-tomato-pickle-onion-mushroom pizza sliding down the counter fro

Murrr4er [49]

Answer:

The correct answer is:

(A) to the left

(B) at speed -0.8725 m/s

Explanation:

The given values are:

Plate 1:

Mass,

m₁ = 201 g

Velocity,

v₁ = +1.79 m/s

Plate 2:

Mass,

m₁ = 335 g

Velocity,

v₁ = -2.47 m/s

According to the conservation of momentum, we get

⇒ $m_1v_1+m_2v_2=(m_1+m_2)v$

then,

⇒ $v=\frac{m_1v_1+m_2v_2}{m_1+m_2}$

On substituting the values, we get

⇒ $=\frac{201\times 1.79+335\times (-2.47)}{201+335}$

⇒ $=\frac{359.79-827.45}{536}$

⇒ $=\frac{-467.66}{536}$

⇒ $=-0.8725$ (to the left)

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3 years ago

6th grade science please help !

Len [333]

Answer:

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Explanation:

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3 years ago

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timofeeve [1]

The answer would be D hope it helps and sorry if it is wrong. :)

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4 years ago

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What does Charles Darwin’s theory of natural selection state about traits?

mihalych1998 [28]

Charles Darwin's theory of natural selection states that features that offer survival or reproductive advantage are more likely to be handed down to subsequent generations.

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2 years ago