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3 years ago

Which sediment size would allow water to flow through at the fastest rate?

1 answer:

4 0

The sediment size that would allow water to flow through at the fastest rate are pebbles. Sediment is a naturally occurring material that is broken down by processes of weathering and erosion, and is consequently transported by the action of wind, or ice, and or by the force of gravity acting on the particles. Pebble is a clast of rock with a particle size of 2 to 64 millimeters based on the scale of sedimentology.

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A tank holds a 1.44-m thick layer of oil that floats on a 0.98-m thick layer of brine. Both liquids are clear and do not intermi

denpristay [2]

Answer:

Angle of ray makes with the vertical is 62.1 degree

Explanation:

As per the ray diagram we know that the angle of incidence on oil brine interface will be given as

$tan\theta_i = \frac{0.7}{0.98}$

$\theta_i = 35.5^0$

now by Snell'a law at that interface we have

$\mu_1 sin\theta_i = \mu_2 sin \theta_r$

now we will have

$1.52 sin35.5 = 1.40 sin\theta_r$

$\theta_r = 39.12^0$

now this is the angle of incidence for oil air interface

so now again by Snell's law we will have

$\mu_2 sin\theta_i' = \mu_{air} sin\theta$

$1.40 sin39.12 = 1 sin\theta$

$\theta = 62.1^0$

3 0

3 years ago

a 905 - g meteor impacts the earth at a speed of 1623 m/s. if all of its energy is entirely converted to heat in the meteor, wha

nlexa [21]

Answer: 2859.78 k

Explanation: By using the law of conservation of energy, the kinetic energy of the meteor equals the heat energy.

Kinetic energy = 1/2mv^2

Heat energy = mcΔθ

Where m = mass of meteor , v = velocity of meteor = 1623 m/s

c = specific heat capacity of meteor (iron) = 460.548 j/kg/k

Δθ = change in temperature of meteor = ?

From law ofconservation of energy, we have that

1/2mv^2 = mcΔθ

By cancelling "m" on both sides, we have that

v^2/2 = cΔθ

v^2 = 2cΔθ

(1623)^2 = 2× 460.548 × Δθ

2634129 = 921.096 × Δθ

Δθ = 2634129 / 921.096

Δθ = 2859.78 k

6 0

3 years ago

What kind of visible-light and infrared telescopes on the ground are astronomers planning for the future? Why are they building

docker41 [41]

Answer:

Sharper images will be produced by the new telescopes.

Construction and maintenance is expensive

Explanation:

The telescopes are put in space so that unfiltered light is received by the telescope. Telescopes on Earth receive light after the light has passed through our atmosphere. This affects the final image of the telescope.

Some of the telescopes being planned in the future are the Extremely Large Telescope (ELT) with mirror aperture diameter of 39.3 m, Thirty Meter Telescope (TMT) with mirror aperture diameter of 30 m, Giant Magellan Telescope (GMT) with mirror aperture diameter of 24.5 m. These mirrors have a significantly larger mirror aperture diameter than the space telescopes. The ELT will be able to produce an image 16 times sharper than the Hubble Telescope. It is also very expensive to make an maintain a telescope in space.

Keeping all this in mind the new telescopes are being made on Earth.

4 0

3 years ago

A circular loop of wire with radius 0.0410 m and resistance 0.169 Ω is in a region of spatially uniform magnetic field, as shown

ArbitrLikvidat [17]

(a) The induced current in the loop will be counterclockwise.

(b) The rate at which electrical energy is being dissipated by the resistance of the loop is 0.012 W.

<h3>Direction of the current</h3>

The induced current in the loop will be counterclockwise to the direction of magnetic field.

<h3>Emf induced in the loop</h3>

emf = -NdФ/dt

emf = -NBA/dt

where;

A is area of the loop

A = πr² = π(0.041)² = 5.28 x 10⁻³ m²

emf = -(-0.605 - 7.78) x 5.28 x 10⁻³

emf = 8.385 x 5.28 x 10⁻³

emf = 0.0442 V

<h3>Rate of energy dissipation</h3>

P = emf²/R

P = (0.0442)²/0.169

P = 0.012 W

Thus, the rate at which electrical energy is being dissipated by the resistance of the loop is 0.012 W.

Learn more about power dissipation here: brainly.com/question/15015986

#SPJ1

7 0

2 years ago

Which statement explains the first law of thermodynamics?

Korolek [52]

Answer:

The right answer among the options is that: Heat is transformed, but not created or destroyed.

Explanation:

The First Law of Thermodynamics states that heat is a form of energy, and that thermodynamic processes are subject to the principle of conservation of energy.

This implies that heat energy cannot be created or destroyed. However, energy can be transferred from one location to another and converted to and from other forms of energy.

Thus, the right answer among the options is that:Heat is transformed, but not created or destroyed.

8 0

3 years ago