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2 years ago

The oceanic Nazca plate is being subducted beneath the continental South American plate. Which type of plate boundary is this?

Physics

1 answer:

Angelina_Jolie [31]2 years ago

8 0

Answer:

ocean-continent convergent boundaries

Examples of ocean-continent convergent boundaries are subduction of the Nazca Plate under South America (which has created the Andes Range) and subduction of the Juan de Fuca Plate under North America (creating the mountains Garibaldi, Baker, St.

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On the graph of voltage versus current, which line represents a 2.0 Ω resistor?

Vikki [24]

Answer:

Explanation:

According to ohm's law V = IR where;

V i sthe supply voltage (in volts)

I = supply current (in amperes)

R = resistance (in ohms)

In order to calculate the line that is equal to 2ohms, we need to calculate the slope of each line using the formula.

For line B, R = ΔV/ΔI

R = V₂-V₁/I₂-I₁

R = 14.0-4.0/7.0-2.0

R = 10.0/5.0

R = 2.0ohms

Since the slope of line B is equal to 2 ohms, this shows that the line B is the one that represents the 2ohms resistor.

3 0

4 years ago

The _______ are found on the right side of the arrow in a chemical reaction.

Dimas [21]

Reactants ---> product
The products are found on the right side of the arrow in a chemical reaction.

5 0

3 years ago

In each cycle, a heat engine an input of 1940 J of heat and exhausts 1480 J of heat. What is the thermal efficiency?

AleksAgata [21]

Answer:

0.237 (23.7 %)

Explanation:

The thermal efficiency of an engine is given by:

$\eta=\frac{W}{Q_{in}}$

where

W is the useful work output of the engine

$Q_{in}$ is the heat in input

Here we have:

$Q_{in}=1940 J$

and the work done is the total heat in input minus the heat exhausted:

$W=1940 J - 1480 J=460 J$

So, the efficiency is

$\eta=\frac{460 J}{1940 J}=0.237$ (23.7 %)

8 0

3 years ago

In the absence of air friction, an object dropped near the surface of the Earth experiences a constant acceleration of about 9.8

Ostrovityanka [42]

Answer:

O speed of the object increases 9.8 m/s during each second

a = 9.8 m/s/s

8 0

3 years ago

Heat Q flows spontaneously from a reservoir at 404 K into a reservoir at 298 K. Because of the spontaneous flow, 2740 J of energ

aleksklad [387]

Answer:

The heat is 10458 J and 15480 J.

Explanation:

Given that,

Temperature T₁ = 404 K

Temperature T₂ = 298 K

Work done = 2740 J

If the temperature T₁ =298 k

Temperature T₂ = 245 K

We need to calculate the heat

Using efficiency formula

$\eta=\dfrac{W}{Q}$ ...(I)

We need to calculate the efficiency

Using formula of efficiency

$\eta=1-\dfrac{T_{2}}{T_{1}}$

$\eta=1-\dfrac{298}{404}$

$\eta=0.262$

Put the value of efficiency in equation (I)

$0.262=\dfrac{2740}{Q}$

$Q=\dfrac{2740}{0.262}$

$Q=10458\ J$

Again, we need to calculate the efficiency

$\eta=1-\dfrac{T_{2}}{T_{1}}$

$\eta=1-\dfrac{245}{298}$

$\eta=0.177$

We need to calculate the heat

Using equation (I)

$Q=\dfrac{2740}{0.177}$

$Q=15480\ J$

Hence, The heat is 10458 J and 15480 J.

8 0

3 years ago