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Artist 52 [7]
3 years ago
15

(1.5 pts) A woman pushes on a box to the left. If the box is accelerating, what forces are working on the

Physics
1 answer:
never [62]3 years ago
6 0

Answer:

Nope

Explanation:

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what output force is generated when an input force of 630 n is applied to a machine with a mechanical advantage of 3
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The mechanical advantage is the factor by which
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If the MA is 3 and the input force is 630N, then
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At the equator, the radius of the Earth is approximately 6370 km. A plane flies at a very low altitude at a constant speed of v
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To solve this problem we will apply the concepts related to the kinematic equations of linear motion. For this purpose we will define the speed as the distance traveled in a given period of time. Here the distance is equivalent to the orbit traveled around the earth, that is, a circle. Approaching the height of the aircraft with the radius of the earth, we will have the following data,

R= 6370*10^3 m

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a = 17m/s^2

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Velocity is defined as,

v = \frac{x}{t}

t = \frac{x}{v}

Herex = \phi, then

t = \frac{\phi}{v} = \frac{2\pi (6370*10^3)}{219}

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What do psychologists used to assist them in diagnosing abnormal behavior?
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3 years ago
A parallel-plate capacitor has a voltage of 391 v applied across its plates, then the voltage source is removed. what is the vol
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When the capacitor is connected to the voltage, a charge Q is stored on its plates. Calling C_0 the capacitance of the capacitor in air, the charge Q, the capacitance C_0 and the voltage (V_0=391 V) are related by

C_0 =\frac{Q}{V_0} (1)


when the source is disconnected the charge Q remains on the capacitor.


When the space between the plates is filled with mica, the capacitance of the capacitor increases by a factor 5.4 (the permittivity of the mica compared to that of the air):

C=k C_0 = 5.4 C_0

this is the new capacitance. Since the charge Q on the plates remains the same, by using eq. (1) we can find the new voltage across the capacitor:

V=\frac{Q}{C}=\frac{Q}{5.4 C_0}

And since Q=C_0 V_0, substituting into the previous equation, we find:

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3 years ago
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