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3 years ago

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Complete the blanks and tell the reaction force

1 answer:

olasank [31]3 years ago

5 0

1 ====> Your answers would be, Newton’s third law says that every time there is an <u>ACTION </u>force, there is also a <u>REACTION </u>force that is<u> EQUAL</u> in size and acts in the <u>OPPOSITE</u> direction.

2 =====> Newton’s third law states that forces must ALWAYS occur in <u>PAIRS.</u>

3 ===> Action forces ====> <u>Tell the REACTION force.</u>

A. Your bottom pushing on your desk seat: <u>SEAT PUSHING UP ON YOUR BOTTOM.</u>

B. A bat hitting a baseball: <u>BASEBALL HITTING THE BAT.</u>

C. Your finger pressing on your phone screen while texting: <u>PHONE SCREEN PUSHING BACK ON YOUR FINGER.</u>

Hope that helps!!!! : )

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plates of a parallel-plate capacitor are 2.50 mm apart, and each carries a charge of magnitude 85.0 nC . The plates are in vacuu

tensa zangetsu [6.8K]

Answer:

12500 V

Explanation:

The electric field in the gap of a parallel-plate capacitor is uniform, so the following relationship between electric field strength, potential difference and distance can be used:

$\Delta V = E d$

where

$\Delta V$ is the potential difference between the plates

E is the electric field strength

d is the distance between the plates

For the capacitor in this problem, we have

$E=5.00\cdot 10^6 V/m$

$d = 2.50 mm = 2.50\cdot 10^{-3} m$

Substituting, we find

$\Delta V = (5.00\cdot 10^6)(2.50\cdot 10^{-3})=12500 V$

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3 years ago

You pull a solid nickel ball with a density of 8.91 g/cm3 and a radius of 1.40 cm upward through a fluid at a constant speed of

Sunny_sXe [5.5K]

Answer:

$P = 1.090\,N$

Explanation:

The constant speed means that ball is not experimenting acceleration. This elements is modelled by using the following equation of equilibrium:

$\Sigma F = P - W + F_{D}$

$\Sigma F = P - \rho \cdot V \cdot g + c\cdot v = 0$

Now, the exerted force is:

$P = \rho \cdot V \cdot g - c\cdot v$

The volume of a sphere is:

$V = \frac{4\cdot \pi}{3}\cdot R^{3}$

$V = \frac{4\cdot \pi}{3}\cdot (0.014\,m)^{3}$

$V = 1.149\times 10^{-5}\,m^{3}$

Lastly, the force is calculated:

$P = (8910\,\frac{kg}{m^{3}} )\cdot (1.149\cdot 10^{-5}\,m^{3})\cdot (9.81\,\frac{m}{s^{2}} )+(0.950\,\frac{kg}{s})\cdot (0.09\,\frac{m}{s} )$

$P = 1.090\,N$

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3 years ago

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225 = 1/2 (50) (v2)
225 = 25 (v2)
225/25 = v2
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3 years ago

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8_murik_8 [283]

Answer:

1/6 del peso en la tierra.

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a_sh-v [17]

Answer:

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F = m x a

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