Which piece of evidence did Alfred Wegener use to develop the theory of continental drift?A.tectonic activity concentrated in certain areas

B.the shape of the continents

C.paleomagnetism of the seafloor

D.deep-sea mountain ranges

Answers

Answer 1

Answer: The right answer for the question that is being asked and shown above is that: "A.tectonic activity concentrated in certain areas." A piece of evidence did Alfred Wegener use to develop the theory of continental drift is that A.tectonic activity concentrated in certain areas

Related Questions

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What is the net force and acceleration of a ball of mass 0.750 kilograms that is subjected to forces of 11.00 newtons and 7.00 newtons from opposite directions?
A waterwheel is an example of ____.

At room temperature of the 92 naturally occurring elements, state the number that are:a. Solid
b. Liquid
c. Gas

Answers

At room temperature of the 92 naturally occurring elements, 11 are gases, 2 are liquids and the rest are solids. The 11 gases include: hydrogen, oxygen, chlorine, fluorine, iodine, nitrogen, xenon, neon, helium, krypton, and argon. The 2 liquids are bromine and mercury.

Friction always acts in a direction ______ to the direction of motion.a. equal
c. perpendicular
b. opposite

Answers

Answer:

b.Opposite

Explanation:

Friction: It is that force which oppose the motion of any object.It is rubbing force.

We have to fill given blank space

Friction always act in opposite direction of motion.

Friction force is applied to overcome the motion of object.

If equal friction force applied in opposite direction to applied force on the object due to which an object in motion then the object will come to in rest.

When applied force is not equal to friction force then motion will not come in rest and continue move.

Hence, friction force always acts in a direction opposite to the direction of motion.

Answer : b.Opposite

Friction always acts in a direction opposite to the direction of motion

What does Lenz's law mean?

Answers

named after the physicist Heinrich Lenz who formulated it in 1834, says: The direction of current induced in a conductor by a changing magnetic field due to Faraday's law of induction will be such that it will create a field that opposes the change that produced it.

Very popular in electromagnetism physics

The induced current in a loop is in the direction that creates a magnetic field thatopposes the change in magnetic flux through the area enclosed by the loop(That is, the induced current tends to keep the original magnetic flux through the circuit from changing). This is what Lenz's law states.

Resistivity measurements on the leaves of corn plants are a good way to assess stress and overall health. The leaf of a corn plant has a resistance of 2.3 MΩ measured between two electrodes placed 20 cm apart along the leaf. The leaf has a width of 2.3 cm and is 0.20 mm thick.Part AWhat is the resistivity of the leaf tissue?Express your answer to two significant figures and include the appropriate units.ρ=________Part BIs this greater than or less than the resistivity of muscle tissue in the human body?(A) greater or(B) less

Answers

Answer:

Part a)

$\rho = 52.9 ohm- m$

Part b)

the resistivity of corn plant is grater than the resistivity of muscle tissue in the human

Explanation:

Part a)

As we know the formula of resistance is given as

$R = \rho (L)/(A)$

here we know that

$\rho = (RA)/(L)$

here we have

$R = 2.3 M ohm$

$L = 20 cm$

$Area = (0.023)(0.20 * 10^(-3))$

$Area = 4.6 * 10^(-6) m^2$

now we have

$\rho = ((2.3 * 10^6)(4.6 * 10^(-6)))/(0.20)$

$\rho = 52.9 ohm- m$

Part b)

Resistivity of mucle tissue of human is is ranging from 15 ohm-m to 50 ohm m so here we can say that

the resistivity of corn plant is grater than the resistivity of muscle tissue in the human

Astronauts traveling toward Earth in a fastmovingspacecraft receive a radio signal from an
antenna on Earth. Compared to the frequency
and wavelength of the radio signal emitted from
the antenna, the radio signal received by the
astronauts has a
(1) lower frequency and a shorter wavelength
(2) lower frequency and a longer wavelength
(3) higher frequency and a shorter wavelength
(4) higher frequency and a longer wavelength

Answers

Compared to the frequency and wavelength of the radio signal emitted from
the antenna, the radio signal received by the astronauts has a (1) lower frequency and a shorter wavelength.

Answer:

3) Higher frequency and a shorter wavelength

Explanation:

The Doppler Effect occurs when the distance between the wave source and the observer is changing. As the astronauts move toward the source of the radio waves, the radio waves will reach them at a faster rate. The perceived frequency will be higher and the wavelength shorter.

What actions did japan take in an attempt to recover from the great depression?