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2 years ago

50 POINTS!!!!!!!! In a GUT (Grand Unified Theory), what is "unified"?

Physics

1 answer:

melomori [17]2 years ago

7 0

Subatomic particles

Explanation:

Grand unification theory or GUT is a model that tries to describe the universe.

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Student A walks up a 10 meter staircase. Student B runs up the same staircase in less

ra1l [238]

Answer: student b ran up the stairs faster

Explanation:if they were going up the same stair case and student b got up there faster that means he was running therefore student b was using more power

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2 years ago

a pick up truck that has a mass of 500kg travels at 8 mph it hits a motor cycle with mass of 100kg. assuming momentum is conserv

Dmitry_Shevchenko [17]

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3 years ago

A constant net torque is applied to an object. Which one of the following will NOT be constant?

love history [14]

Answer:

B) Angular velocity

Explanation:

The equivalent of Newton's second law for the rotational motions can be written as:

$\tau = I \alpha$

where

$\tau$ is the net torque applied to the object

I is the moment of inertia

$\alpha$ is the angular acceleration

From the formula we see that when a constant net torque $\tau$ is applied, then the object also has a constant angular acceleration, $\alpha$ .

But we also know that

$\alpha = \frac{d\omega}{dt}$

where $\omega$ is the angular velocity: so, a constant angular acceleration means that the angular velocity of the object is changing, so the correct answer is

B) Angular velocity

(moment of inertia and center of gravity do not change since they only depend on the mass and the geometry/shape of the object, which do not change)

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2 years ago

As the result of a thermal inversion the prevailing air temperature profile increases 1°C/100m above the ground level. To what m

astra-53 [7]

Answer:

909.1 m

Explanation:

Rate of temperature increase with 100 m elevation = 1°C

h = Maximum Height

Adiabatic lapse rate = -0.65°C/100 m

We have the relation

$\dfrac{1^{\circ}C}{100}=\dfrac{15^{\circ}C}{h}+\left(-\frac{0.65}{100}\right)\\\Rightarrow \dfrac{1^{\circ}C}{100}+\left(-\frac{0.65}{100}\right)=\dfrac{15^{\circ}C}{h}\\\Rightarrow h=\dfrac{15^{\circ}C}{1.65^{\circ}C}\times 100\\\Rightarrow h=909.1\ m$

The maximum height is 909.1 m

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3 years ago

How do charging and discharging compare? How can charging go unnoticed,

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2 years ago