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kramer
3 years ago
10

What would happen if a solid temperature increases

Physics
1 answer:
Ber [7]3 years ago
7 0
It will increase in size
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Given the scenario: A 45 kg. object is being pushed north with a force of 8N, and at the same time, it is been pushed east with
sveta [45]

Answer:

10 N, 53.1^{\circ} north-east

Explanation:

The two forces applied on the object are perpendicular to each other, so we can find the magnitude of their resultant by using the Pythagorean theorem:

R=\sqrt{(6 N)^2 + (8 N)^2}=10 N

The direction of the force instead is given by

\theta = tan^{-1} (\frac{F_n}{F_e})

where F_n is the force pointing north, and F_e is the force pointing east, and the angle is measured with respect to the east direction. Substituting,

\theta=tan^{-1} (\frac{8 N}{6 N})=tan^{-1} (1.333)=53.1^{\circ}

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3 years ago
Which statement describes oneScientists have changed the model of the atom as they have gathered new evidence. One of the atomic
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el continuo movimiento

Explanation:

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LUCKY_DIMON [66]

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You are standing on a bathroom scale in an elevator in a tall building. Your mass is
Oksanka [162]

Answer:

94 kg or 921.6 N

Explanation:

The velocity function is v(t) = 3t + 0.2t^2. The acceleration function, a(t), is the time derivative of the velocity function.

a(t) = \dfrac{d}{dt}v(t) = 3 + 0.4t

At t=4,

a(4) = 3 + 0.4\times4 = 3+1.6 =4.6\text{ m/s}{}^2

Because the elevator is going upwards, the net acceleration, a_N = g + a(4) where g us acceleration of gravity.

a_N = 9.8 + 4.6 = 14.4\text{ m/s}{}^2

The resultant weight is

W =m a_N =64\times14.4=921.6 \text{ N}

Since the bathroom scale is graduated in kg, it's reading is

m =\dfrac{W}{g}=\dfrac{921.6}{9.8}=94\text{ kg}

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3 years ago
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yarga [219]

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June Mar Fajardo

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