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3 years ago

Which statement about a HORIZONTAL projectile is false?

Physics

1 answer:

julsineya [31]3 years ago

7 0

Answer:

the vertical velocity is constant.

Explanation:

The horizontal velocity of a projectile is constant (a never changing in value), There is a vertical acceleration caused by gravity; thus, the vertical velocity of a projectile changes. and the horizontal motion of a projectile is independent of its vertical motion.

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3 years ago

In static equilibrium, the potential difference between two points inside a solid piece of metal Group of answer choices is zero

levacccp [35]

Answer:

it is zero because the electric gap is zero within the material

Explanation:

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4 years ago

Which categories did Lavoisier use when he classified the elements?

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Metals
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3 years ago

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Drupady [299]

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4 years ago

When you push a 1.70 kg book resting on a tabletop it takes 2.60 N to start the book sliding. Once it is sliding, however, it ta

bezimeni [28]

Answer:

Coefficient of static friction ,μs = 0.15

Coefficient of kinetic friction ,μk = 0.089

Explanation:

Given that

m = 1.7 kg

Static friction :

The force required to start the motion F= 2.6 N

We know that when book is in rest condition then static friction force act on it.

We know that the maximum value of the static friction force

fr = μ m g

At limiting condition

F= fr

2.6 = μ m g

2.6 = μ x 1.7 x 9.81

$\mu=\dfrac{2.6}{1.7\times 9.81}$

μ = 0.15

Kinetic friction :

F= 1.5 N

When the book is in moving condition then kinetic friction force act on it.

We know that the maximum value of the kinetic friction force

fr = μ m g

F= fr

= μ m g

1.5 = μ x 1.7 x 9.81

$\mu=\dfrac{1.5}{1.7\times 9.81}$

μ = 0.089

Coefficient of static friction ,μs = 0.15

Coefficient of kinetic friction ,μk = 0.089

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3 years ago

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