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2 years ago

12

Denise is conducting a physics experiment to measure the acceleration of a falling object when it slows down and comes to a stop

. She drops a wooden block with a mass od 0.5 kilograms on a sensor on the floor. The sensor measures the force of the impact as 4.9 newtons. Whats the acceleration of the wooden block wgen it hits the sensor

2 answers:

iren [92.7K]2 years ago

4 0

We need a and we have m and F . Now a = f÷m so therefore a = 4,9 ÷ 0,5 which is 0,98 metres per cubic second

Roman55 [17]2 years ago

3 0

Answer:

$a = 9.8 m/s^2$

Explanation:

As we know that here given parameters are

$mass = 0.5 kg$

also we know that force of impact on the floor is given as

$F = 4.9 N$

now we know by the Newton's 2nd law says that the net force on an object is product of mass and its acceleration

it is given by

$F = ma$

now we have

$a = \frac{F}{m}$

$a = \frac{4.9}{0.5}$

$a = 9.8 m/s^2$

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Answer:

Explanation:

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X axis

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N₁ - W_y = 0 ( 2)

let's use trigonometry for the weight components

sin θ = Wₓ / W

cos θ = W_y / W

Wₓ = W sin θ

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We write the diagram for the second body.

Note that in the block the positive direction rd upwards, therefore for block 2 the positive direction must be downwards

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we add the equations is 1 and 3

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2 years ago

By standard convention, both the electric potential and the the electric potential energy between two charges is taken to be zer

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Answer: at when distance r = infinity.

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q = magnitude of electric charge

ε = permittivity of free space

r = distance between arbitrary point and charge.

In the equation above, it can be seen that only electric potential (v) and distance (r) is a variable, and there is an inverse relationship between them (an increase in one leads to a decrease in the other)

Thus to have zero value of electric potential (v= 0) we have to have the largest value of r ( r = infinity).

Same goes for electric potential energy between two charges, the formulae is given below as

W = q1 *q2/4πεr

W= electric potential energy

q1 = magnitude of first charge.

q2 = magnitude of second charge

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r = distance between arbitrary point and charge.

Also, all values are constant aside from electric potential energy (w) and distance (r) which have an inverse relationship.

Thus to have zero value of electric potential energy (w =0), we have to get an infinite value of distance ( r =infinity)

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Answer:

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1 year ago

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