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3 years ago

How many minutes of daylight do we gain after winter solstice

Physics

1 answer:

serg [7]3 years ago

4 0

Answer:

Depends on which hemisphere you are belong to and how much distance you are away from Ecuador.

Explanation:

Minutes of daylight is equal on everywhere only on the equinox days (21 March and 23 September). On other days it depends on the place that you are belong to. On winter solstice, places on Ecuador have 12 hours daylight. North side of Ecuador have less, south side of Ecuador have more hour of daylight.

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Comparative table of the different states of aggregation of the matter that you will review in this session. You must describe h

Andru [333]

Answer:

Gases, liquids and solids are all made up of microscopic particles.

Note that:

Particles in a:

gas are well separated with no regular arrangement.

liquid are close together with no regular arrangement.

solid are tightly packed, usually in a regular pattern.

Particles in a:

gas vibrate and move freely at high speeds.

liquid vibrate, move about, and slide past each other.

solid vibrate (jiggle) but generally do not move from place to place.

Liquids and solids are often referred to as condensed phases because the particles are very close together.

Explanation:

btw... IS THAT SPANISH?!

I HAD TO DO THIS ON ENGLISH LOLOLO

4 0

3 years ago

Prove that vf = vi+at.

Gnoma [55]

To make your formula neater:

$V_{f} = V_{i} + a*t$

Acceleration is equal to

$\frac{velocity}{time}$ ,

so when you multiply it by time, you will get a velocity. In fact, you would get the change in velocity, as a*t signifies the acceleration of the object over the time, aka the change in velocity.

The initial velocity plus the change in velocity will equal the final velocity, irregardless if the change in velocity is positive or negative.

Therefore,

$V_{f} = V_{i} + a*t$

6 0

3 years ago

A 5.22×104 kg railroad car moves on frictionless horizontal rails until it hits a horizontal spring stopper with a force constan

In-s [12.5K]

To solve this problem we will apply the principles of conservation of energy, for which we have to preserve the initial kinetic energy as elastic potential energy at the end of the movement. If said equality is maintained then we can affirm that,

$\text{Initial Energy}=\text{Final Energy}$

$\frac{1}{2} mv^2=\frac{1}{2} kx^2$

Here,

m = mass

k = Spring constant

x = Displacement

v = Velocity

Rearranging to find the velocity,

$mv^2 = kx^2$

$v^2 = \frac{kx^2}{m}$

$v = \sqrt{\frac{kx^2}{m}}$

Our values are,

$m = 5.22*10^4kg$

$k = 4.58*10^5N/m$

$x = 32cm = 0.32m$

Replacing our values we have,

$v = \sqrt{\frac{(4.58*10^5)(5.22*10^4)}{0.32}}$

$v = 2.733*10^5m/s$

Therefore the velocity is $2.733*10^5m/s$

8 0

4 years ago

A common technique used to measure the

vodomira [7]

Answer:

$K=6\ N/m$

Explanation:

<u>Force Constant of a Spring</u>

The force F applied to a spring produces a stretching distance x. These variables are linearly related as expressed by Hook's law:

$F=K.x$

If we could measure the distance a spring stretches when applying a known force, we'd be able to find the value of K. The experiment stated in the question places some mass of a known weight of 96 N that produced a stretching distance of 16 m. Knowing both variables, we can solve the above equation for K

$\displaystyle K= \frac{F}{x}=\frac{96\ N}{16\ m}=6\ N/m$

$\boxed{K=6\ N/m}$

3 0

3 years ago

When the voltage is

gizmo_the_mogwai [7]

Explanation:

ask to nirajan shrestha

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7 0

3 years ago