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ikadub [295]
3 years ago
5

Questlon 2 of 10

Physics
1 answer:
pochemuha3 years ago
3 0

Answer:

the answer is OD which says tge buoyant girce on an object is equal to the weight of th fluid

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How do geologists construct the geologic column?​
Luda [366]

Answer:

They do this by joining pieces of different Rock sequences together from different places in the whole world.

Explanation:

Geologic columns are basically an arrangement of rock layers whereby the newest rocks are at the top while the oldest rocks will be at the bottom. Thus, it is like a timescale that's used to find the age of rock formation on the earth around the world.

3 0
3 years ago
A spinning flywheel has rotational inertia I = 474.0 kg·m2. Its angular velocity decreases from 26.2 rad/s to zero in 204.0 s du
Flura [38]

Answer:

\tau = 60.88 N.m

Explanation:

given,

rotational inertia, I = 474.0 kg·m²

decrease in angular velocity

ω₁ = 26.2 rad/s        ω₂ = 0 rad/s

time = 204 s

torque = ?

\tau = I \alpha

\alpha = \dfrac{\omega_1-\omega_2}{t}

\alpha = \dfrac{26.2-0}{204}

   α = 0.128 rad/s²

\tau = I \alpha

\tau = 474\times 0.128

\tau = 60.88 N.m

frictional torque acting by the flywheel is equal to 60.88 N.m

7 0
3 years ago
Which type of reaction is shown in this energy diagram?
valentinak56 [21]

Answer:

Option C

Explanation:

The graph shows endothermic reaction because the reactants are lower in energy and the products are higher is energy. Endothermic reactions absorb energy having products with higher energy.

5 0
4 years ago
Read 2 more answers
An AC circuit with a total resistance of R has an rms current of I. The circuit wraps around an iron core transistor with 50 loo
zvonat [6]

Answer:

current is 13.88 A

Explanation:

given data

no of loops = 50 loops

resistance = 40 Ω

R = 15.0 Ω

I = 5.0 amp

N = 18

to find out

rms current

solution

we will apply here transformed principle that is

v(s) / v(p) = I(p) / I(s) = N(s) / N(p)   ....................1

here p is primary and s is secondary

put here all these value

5 / I(s) = 18 / 50

I(s) = 250 /18

I(s) = 13.88

so current is 13.88 A

6 0
4 years ago
A car tire rotates at a constant angular velocity of 3.5 rotations during a time interval of 0.75 seconds. What is the angular s
Andru [333]

Answer : \theta = 2.625\ radians

Explanation :  

Given that,

Angular velocity \omega = 3.5\ rad/s

Time t = 0.75 s

We know , the formula of angular velocity

\omega = \dfrac{\theta}{t}

\theta = \omega \times t

\theta = 3.5\ rad/s\times0.75\ s

The angular speed of the tire is

\theta = 2.625\ radians

Hence, this is the required solution.



4 0
3 years ago
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