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3 years ago

NEED HELP ASAP, WILL GIVE BRAINLIEST

2 answers:

6 0

a) El Niño is defined as an abnormal weather pattern caused by the warming of the Pacific Ocean near the equator, off the coast of South America. The sun warms the water near the equator, which can make more clouds and, therefore, more rain. It has detrimental effects on biodiversity leading to its large-scale loss by
warmer sea temperatures leading to plankton and fish kills in coastal waters
lower sea levels leading to exposure of underwater coral reefs, causing their loss.

nata0808 [166]3 years ago

6 0

Answer:

i think the best one is c

Explanation:

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Which statement is true regarding DC current?

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3 years ago

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A small block is attached to a spring with a spring constant of 85 N/m. When the spring is compressed 0.30 meters and the releas

Pachacha [2.7K]

Answer:

Explanation:

These Hooke's Law problems are tricky. Here's what we need to know that clears up the problem entirely. The final and also the max speed of the block will be reached at the point where the potential energy of the system is 0. So the equation we need, namely,

$KE+PE=\frac{1}{2}kA^2$ can be simplified down to

$KE=\frac{1}{2}kA^2$ and we solve this first for KE:

$KE=\frac{1}{2}(85)(.30)^2$ and, paying NO attention whatsoever to significant digits here (because if you did the answer you get is not one of the choices)

KE = 3.825 J. Now we can use that value of kinetic energy and solve for the speed we need:

$KE=\frac{1}{2}mv^2$ so

$3.825=\frac{1}{2}(.50)v^2$ so

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5 0

2 years ago

a charge of 7.2x10^-5C is placed in an Electric field with a strength of 4.8x10^5N/C. if the Electric potential energy of the ch

Alecsey [184]

Answer:

$d= 2.2 m$

Explanation:

The data given in the question is

Charge : q = $7.2 \times 10^{-5} C$

Electric field Strength : E = $4.8 \times 10^{5} N/C$

Electrical potential Energy : U = $75J$

Let, the distance be "d"

So, the formula for Electrical potential energy is

$U= q \times E \times d$

Simplified formula for distance become

$d=\frac{U}{q \times E}$

Now , insert the value

$d=\frac{75 J}{7.2 \times 10^{-5}C \times 4.8 \times 10^5 N/C}$

or,

$d=2.17 m$

Rounding off

$d= 2.2 m$

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3 years ago

State the mathematical form of universal law of gravitation

Andrew [12]

Answer:

Newton's Universal Law of Gravitation: 'a simple equation, but devastatingly effective'. ... The equation says that the force (F) between two objects is proportional to the product of their masses (m1 and m2), divided by the square of the distance between them.

Explanation:

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3 years ago

What is the difference between vector and scalar quantities.give an example of both.

Zigmanuir [339]

Difference Between a Scalar & Vector Quantity:

A vector quantity has a direction and a magnitude, while a scalar quantity only has magnitude.

Examples:

Scalar quantity include things like speed, time, volume, mass and temperature, while Vector quantities include things like acceleration, velocity, force, momentum and the increase and decrease in temperature.

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3 years ago

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