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3 years ago

The theory of plate tectonics describes _______.

Physics

2 answers:

natulia [17]3 years ago

8 0

I believe the answer is C

IgorC [24]3 years ago

3 0

Answer:

c. the movement of Earth’s lithosphere

Explanation:

The theory of the plate tectonics is a theory that states the role played by the plates or rigid slabs on the formation of the earth's crust i.e the terrestrial lithosphere or land sphere.

The plate tectonic theory got recognition in the year 1912 when ample of evidence was given evidences in support like the origin of the coals and gold reserves in the rocks near the coasts of Africa and south America

The S-shaped pattern of the Atlantic ocean is also signifying and suggests that landmass were once a supercontinent that drifted away in due course of time.

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A person throws a 0.21-kg ball straight up into the air. It reaches a height of

Brrunno [24]

Answer:

Explanation:

As it begins to fall

F = ma a = 9.81

F = .21 * 9.81 = 2.06 N

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2 years ago

An airplane has wings, each with area A, designed so that air flows over the top of the wing at 265 m/s and underneath the wing

exis [7]

Answer

given,

Pressure on the top wing = 265 m/s

speed of underneath wings = 234 m/s

mass of the airplane = 7.2 × 10³ kg

density of air = 1.29 kg/m³

using Bernoulli's equation

$P_1 + \dfrac{1}{2}\rho v_1^2 = P_2 + \dfrac{1}{2}\rho v_2^2$

$\Delta P =\dfrac{1}{2}\rho (v_2^2-v_1^2)$

$\Delta P =\dfrac{1}{2}\times 1.29\times (265^2-234^2)$

$\Delta P =9977.5 Pa$

Applying newtons second law

2 Δ P x A - mg = 0

$A =\dfrac{mg}{2\Delta P}$

$A =\dfrac{7.2\times 10^3 \times 9.8}{2\times 9977.5}$

A = 3.53 m²

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3 years ago

Measure of how high or low a sound is

katovenus [111]

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3 years ago

Read 2 more answers

A 3-kg chunk of putty moving at 2 m/s collides with and sticks to a 5-kg bowling ball initially at rest. The bowling ball and pu

Oduvanchick [21]

Answer:

It's Momentum becomes 4

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4 years ago

Two wheels initially at rest roll the same distance without slipping down identical planes. Wheel B has twice the radius, but th

OlgaM077 [116]

Answer:

Their translational kinetic energies are the same

Explanation:

The translational kinetic energy of an object is given by the formula:

$KE = 0.5 mv^2$

Where m = the mass of the object and

v = the linear speed of the object

From the question, it is stated that wheel A has the same mass as wheel B, that is $m_A = m_B$

Linear speed is also a function of the distance covered. Since both wheels cover the same distance within the same interval, we can conclude that $v_A = v_B$

Both wheels A and B have equal speed and mass, this means that their translational kinetic energy is the same.

Note that translational kinetic energy is not a function of the radius

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4 years ago