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bazaltina [42]
3 years ago
14

AnswAnswer This!!!!!! I'll give brainliest to whoever gets it right.

Physics
1 answer:
Gala2k [10]3 years ago
8 0
Answer: 1.0 mol

8/2 = 4/2 = 2/2 = 1

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The SI system, also called the metric system, is used around the world. There are seven basic units in the SI system: the meter (m), the kilogram (kg), the second (s), the kelvin (K), the ampere (A), the mole (mol), and the candela (cd).

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What is lower body strength
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What is the velocity in an object
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How far it moves over a certain period of time, but unlike the term "speed" velocity is a vector quantity and tells you the direction of an object (speed is also distance over time just without a direction). This means an object can have negative velocity, but it can't have negative speed.
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The planets Hox and Blox are near each other in the Dorgon system. The Dorgons have very advanced technology, and a Dorgon scien
dexar [7]
<h2>Answer: Decreasing the distance between Hox and Blox, increasing the mass of Hox, or increasing the mass of Hox and Blox. </h2>

Explanation:

According to the law of universal gravitation:

F=G\frac{m_{1}m_{2}}{r^2}  

Where:  

F is the module of the attraction force exerted between both planets  

G is the universal gravitation constant.  

m_{1} and m_{2} are the masses of both planets.  

r is the distance between both planets.

As we can see, the gravity force is directly proportional to the mass of the bodies and inversely proportional to the square of the distance that separates them.

In other words:

If we decrease the distance between both planets (Hox and Blox), the gravitational pull between them will increase.  

On the other hand, if we keep the distance between Hox and Blox, but we increase the mass of one of them, or increase the mass of both, the gravitational pull between them will also increase.

7 0
3 years ago
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A gyroscope flywheel of radius 3.21 cm is accelerated from rest at 13.2 rad/s2 until its angular speed is 2450 rev/min.
SIZIF [17.4K]

Answer:

Part a)

a_t = 0.423 m/s^2

Part b)

a_c = 2113 m/s^2

Part c)

d = 80 m

Explanation:

Part a)

as we know that angular acceleration of the wheel is given as

\alpha = 13.2 rad/s^2

now the radius of the wheel is given as

R = 3.21 cm

so the tangential acceleration is given as

a_t = R\alpha

a_t = (0.0321)(13.2)

a_t = 0.423 m/s^2

Part b)

frequency of the wheel at maximum speed is given as

f = 2450 rev/min

f = \frac{2450}{60} = 40.8 rev/s

now we know that

\omega = 2\pi f = 2\pi(40.8) = 256.56 rad/s

now radial acceleration is given as

a_c = \omega^2 r

a_c = (256.56)^2(0.0321) = 2113 m/s^2

Part c)

total angular displacement of the point on rim is given as

\Delta \theta = \omega_0 t + \frac{1}{2}\alpha t^2

here we know that

\omega = \omega_0 + \alpha t

256.56 = 0 + 13.2 t

t = 19.4 s

now angular displacement will be

\Delta \theta = 0 + \frac{1}{2}(13.2)(19.4)^2

\Delta \theta = 2493.3 rad

now the distance moved by the point on the rim is given as

d = R\theta

d = (0.0321)(2493.3)

d = 80 m

7 0
3 years ago
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