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n200080 [17]
3 years ago
12

A 12 kg box is at rest on your kitchen counter, which your cat is pawing at with a horizontal force of 40 N. If the coefficient

of static friction is 0.3, then your cat will succeed in knocking the box off the counter. True or false?
Physics
1 answer:
murzikaleks [220]3 years ago
8 0

Answer; I think it's False.

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Convert Rev/min to rad/s x 2pie/60?<br><br> Anyone knows this please?
defon

Answer:

Thus, \frac{1 rev}{min} =\frac{2\pi}{60} rad/s

Explanation:

The angular speed is defined as the rate of change of angular velocity.

Its SI unit is rad/s and other units are rev/min or rev/s.

\frac{1 rev}{min } = \frac{1 rev}{60 sec}\\\\1 rev = 2\pi rad\\\\So\\\\\frac{1 rev}{min} = \frac{2\pi}{60} rad/s

8 0
2 years ago
Acceleration can occur when a car is moving at a constant speed. what must cause this acceleration?​
igomit [66]
The gasoline is charging the the car to move faster
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Two objects of equal mass are a fixed distance apart. If the mass of each object could be tripled, the gravitational force betwe
antiseptic1488 [7]

gravitational force between two objects is given as

F = G m₁ m₂/r²

where m₁ = mass of first object , m₂ = mass of second object , r = distance between the two objects .

Initial case :

m₁ = m₂ = m

gravitational force between the objects is given as

F = G m²/r²

Final Case :

m₁ = m₂ = 3 m

new gravitational force between the objects is given as

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5 0
3 years ago
It takes 24 hours for _______?
tigry1 [53]

Answer:

C

Explanation:

Earth rotates once in about 24 hours with respect to the Sun, but once every 23 hours, 56 minutes, and 4 seconds with respect to other, distant, stars. Earth's rotation is slowing slightly with time; thus, a day was shorter in the past. This is due to the tidal effects the Moon has on Earth's rotation.

8 0
3 years ago
A 1,492.3-kg airplane travels down the runway. Each of its four engines provides a force of
Fittoniya [83]

The acceleration of the air plane is 3.879 \mathrm{m} / \mathrm{s}^{2}

<u>Explanation:</u>

Given:

The mass of the air plane = 1492.3 kg

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So, the total force of four engines can be calculated as = 4(1447.5) = 5790 N

The force that acts on the object is equal to the product of mass (m) and its acceleration. It can express by the below formula,

                         \text {Force }(F)=m \times \text { acceleration }(a)

The above equation can be written as below to find acceleration,

                        a=\frac{F}{m}

Now. Substitute the given values, we get,

                        a=\frac{5790}{1492.3}=3.879 \mathrm{m} / \mathrm{s}^{2}

3 0
2 years ago
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