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2 years ago

im bored and lonely put those two together and youve got me. any guys wanna create a zo.om just for fun. im dyying of boredom.

Physics

1 answer:

kipiarov [429]2 years ago

7 0

Answer:

just guys

Explanation:

and if not i need how old you are sorry just trying to be safe

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A 300 kg piano needs to be moved to the other side of the room. The maximum static frictional force is equal to 90 N and the kin

riadik2000 [5.3K]

Answer:

a = 0.1 m/s²

Explanation:

If the maximum static frictional force is 90 N, this means that any applied force that will overcome this force, will cause the piano to slide, so kinetic frictional force applies.
Under these conditions, the net force in the horizontal direction is just the difference between the applied force (which is larger that the static friction force) and the kinetic frictional force, as follows:

$F_{net} = F_{app} -F_{frk} = 100 N - 70 N = 30 N (1)$

By the same token, according Newton's 2nd Law, this force is just equal to the product of the mass of the piano, times the acceleration, as follows:

$F_{net} = m* a = 300 Kg * a = 30 N (2)$

Solving for a:

$a = \frac{F_{net}}{m} = \frac{30 N}{300kg} = 0.1 m/s2 (3)$

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2 years ago

One has a frequency of 490 Hz and the other is 488 Hz. How many beats per second are heard?

tresset_1 [31]

When sounds at two different frequencies are combined,
two new sounds are created ... at the sum and difference
of the original frequencies.

Combining two sounds at 490 Hz and 488 Hz creates
beats at 978 Hz and 2 Hz.

The fluttering "wah wah" effect of the 2 Hz beat is much more
noticeable than the new sound at 978 Hz.

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3 years ago

A segment of DNA that codes for the ability to make one type of protein molecule is known as a(n)____________________. A) axon B

astraxan [27]

The answer is C) Gene

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2 years ago

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A particle has 3 x 10^15 eV has a charge of 3uC is placed on a certain field.

Vinvika [58]

Answer:

no se porque xD jajjakajajjajajajjaj

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2 years ago

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Suppose you have a Frisbee with a mass of 0.10 kg. You first throw it with a force of 5N and then change the force you throw it

natali 33 [55]

Answer:

The acceleration increases.

Explanation:

From Newton's 2nd Law, we have $\Sigma F=ma$ . We can see that force is directly proportional to mass and acceleration. Therefore, as force increases, either mass or acceleration must increase as well, and vice versa. Since mass is maintained here, if you increase the force applied to the Frisbee, the acceleration will increase as well.

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2 years ago