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3 years ago

A 3000-N force gives an object an acceleration of 15m/s^2 the mass of the object is?

Physics

2 answers:

Shkiper50 [21]3 years ago

7 0

Answer:c will be answer

Explanation:Because u know F=ma so if we wanna know m then we should move a on left side and it will be in divide with f after moving on left side so

M=F/A

Mkey [24]3 years ago

3 0

<h2>Answer:</h2>

<u>200 kg</u> of an object is being moved with an acceleration $15 \ \mathrm{m} / \mathrm{s}^{2}$ by applying a force of 3000 N.

<h2>Explanation:</h2>

According to Newton's second law which states that an object of mass 'm' is moved with an acceleration 'a' if the force 'f' is applied on the body.

The force is given by the formula:

$f=m \times a$

From the given question we need to find mass of the object that can be moved by applying force of 3000 N with an acceleration $15 \ \mathrm{m} / \mathrm{s}^{2}$ .

$\Rightarrow 3000=m \times 15$

$\Rightarrow m=\frac{3000}{15}$

$\therefore m=200 \ \mathrm{kg}$

Thus, the mass of an object will be 200 kg.

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sattari [20]

Answer:

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Explanation:

Original F = C q1q2/r^2 now change the parameters

New F = C 1/3 q1 2 q2 / (2r)^2

= 2/12 C q1q2/r^2 <=======the new force is 1/6 of original

1/6 * 72 = 12 units

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2 years ago

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3 years ago

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what is the acceleration of a car that slows down from 60m/s to 40 m/s during a period of 10 seconds?

algol [13]

The acceleration of the car is stated as -2 m/s², while the deceleration of the car is termed as 2 m/s².

Answer:

Explanation:

Acceleration exerted by any object in order of decrease in the speed is termed as deceleration. In other words , negative acceleration or acceleration acting in opposite direction to stop the motion of any object is termed as deceleration. The magnitude of acceleration and deceleration is same only the direction is completely opposite to each other. So the negative sign will be obtained for acceleration value of any object whose velocity slows down from initial velocity.

Here , the initial velocity was 60 m/s and the final velocity is slowed down to 40 m/s in time 10 s.

So acceleration = (Final velocity - Initial velocty)/Time

Acceleration = (40-60)/10 = -20/10 = -2 m/s².

Thus, the acceleration of the car is stated as -2 m/s², while the deceleration of the car is termed as 2 m/s².

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4 years ago

A soap bubble appears red (λ = 633nm) at the point on its front surface nearest to the viewer. Assuming n = 1.35, what is the sm

alexira [117]

Answer:

The smallest film thickness is 117 nm.

Explanation:

Light interference on thin films can be constructive or destructive. Constructive interference is dependent on the film thickness and the refractive index of the medium.

For the first interference (surface nearest to viewer), the minimum thickness can be expressed as:

$2t_{min} = \frac{wavelenth}{2n}$