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3 years ago

How fast are the earths tectonic plates moving on average

1 answer:

5 0

About 2 to 5 centimeters per year (1 to 2 inches per year), about the same speed that your fingernails grow. We know, then, that the outermost part of Earth consists of a series of large slabs (tectonic plates; lithospheric plates) that move slowly over the globe, powered by flow in the interior mantle

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A jet takes off from Florida and flies 100 miles north and then 400 miles west. Determine the total distance travelled by the je

Inessa [10]

Answer:

90m

Explanation:

Distance is not a vector but a scalar quantity. depicted by a quantity only.

hence:

Distance is equal to 30+40+20 = 90 m

5 0

3 years ago

Read 2 more answers

Dani and Gina are pushing a box. Dani pushes with 257 N of force and Gina pushes with 86 N of force.

Advocard [28]

Answer:

Pushing from the same direction: 343 N

Pushing from opposite directions: 171 N

Explanation:

If Dani and Gina are pushing in the same direction then you would add up the forces they are pushing with since the force is applied in the same direction.

257N+86N=343 N

If Dani and Gina are pushing in the opposite direction then you would subtract the forces they are pushing with because they are going against each other.

257N-86N=171 N

Hope this helped! :)

6 0

3 years ago

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I need help with this question how to solve it for Brass and Cooper

Ksenya-84 [330]

Take into account that density and relative density are given by:

$\begin{gathered} \text{density}=\text{ mass/volume} \\ \text{relative density = density/density of water} \end{gathered}$

Take into account that the volume associated to each of the given sustances in the table is determined by the Level Difference (because it is the change in the volume of the water of the recipient in which the substance is immersed).

The density of water in kg/m^3 is 1000 kg/m^3.

Due to the density must be given in kg/m^3, it is necessary to express the volumes of the table in m^3 and mass in kg, then, consider the following conversion factor:

1 m^3 = 1000000 ml

1 kg = 1000 g

Then, you obtain the following results:

Brass:

$\begin{gathered} 53.2g\cdot\frac{1kg}{1000g}=0.0532kg \\ 6ml\cdot\frac{1m^3}{1000000ml}=0.000006m^3 \\ \text{density}=\frac{0.0532kg}{0.000006m^3}\approx8866.67\frac{kg}{m^3} \\ \text{relative density=}\frac{(\frac{8866.66kg}{m^3})}{(1000\frac{kg}{m^3})}\approx8.87 \end{gathered}$

Cooper:

$\begin{gathered} 57.4g=0.0574kg \\ 6ml=0.000006m^3 \\ \text{density}=\frac{0.0574kg}{0.000006m^3}\approx9566.67\frac{kg}{m^3} \\ \text{relative density=}\frac{\frac{9566.67kg}{m^3}}{1000kg}=9.57 \end{gathered}$

3 0

1 year ago

What is the force exerted on a charge of 2. 5 µC moving perpendicular through a magnetic field of 3. 0 × 102 T with a velocity o

stira [4]

The force acting on a moving charge is known as the magnetic force. The force acting on the charge will be 3.75 N.

<h3>What is the force exerted on the charge?</h3>

Magnetic fields only exert a force on a moving electric charge. A moving charge generates a magnetic field. With an increase in charge and magnetic field strength, this force rises.

when charges have higher velocities, the force is stronger. However, the magnetic force is always perpendicular to the velocity.

Mathematically the force exerted on the charge will be

F=qvBsinα

F= force acting on the charge

v = velocity of charge

q = charge

F=qvBsinα

F=2.5×10⁻⁶×5.0×10³×3.0×10²

F=37.5 N

Hence The force acting on the charge will be 3.75 N.

To learn more about the force acting on charge refer to ;

brainly.com/question/451411

F = q V B sinα

Where F is the force applied to a moving charge.

V = charge velocity

q stands for charge.

α = angle between V and B directions

As a result, the moving charge is subjected to a force of 3.75 Newton.

3 0

2 years ago

Water in its solid state has a specific heat of 2.093 J/g°C. Water in its liquid state has a specific heat of 4.186 J/g°C. Which

vladimir1956 [14]

Answer:

D: The hydrogen bonds between water molecules are more cohesive in the liquid state than in the solid state.

Explanation:

If we assume that there is no phase change due to heating, we know that the temperature change will be proportional to the mass heated, being the proportionality constant that is a quantity which depends on the material, and also represents the resistance of the material to cause a change in the temperature and is called specific heat.

Now, if we are to assume that the mass is the same for the three phases, and that the amount of heat supplied is also the same, the phase with the highest specific heat will therefore possess the lowest temperature change.

At a lower temperature, the hydrogen bonds will be more cohesive than at higher temperatures.

We are told that in it's solid state, it has a specific heat capacity of 2.093 J/g°C while in its liquid state, it has a specific heat capacity of 4.186 J/g°C.

Thus, the hydrogen bonds between water molecules in the liquid state will be less cohesive than in its solid state.

3 0

3 years ago

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