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3 years ago

What is the difference between a neap and a spring tide in terms of size?

1 answer:

7 0

Spring tides occur when the moon is either new or full, and the sun, the moon, and the Earth are aligned. ... neap tide- A tide in which the difference between high and low tide is the least. Neap tides occur twice a month when the sun and moon are at right angles to the Earth.

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A copper rod has a length of 1.3 m and a cross-sectional area of 3.6 10-4 m2. One end of the rod is in contact with boiling wate

sdas [7]

To solve the problem it is necessary to apply the concepts related to heat flow,

The heat flux can be defined as

$\frac{dQ}{dt} = H = \frac{kA\Delta T}{d}$

Where,

k = Thermal conductivity

A = Area of cross-sectional area

d = Length of the rod

$\Delta T=$ Temperature difference between the ends of the rod

$k =388 W/m.\°C$ Thermal conductivity of copper rod

$A = 3.6 *10^{-4} m$ Area of cross section of rod

$\Delta T=100-0=100\°C$ Temperature difference

$d=1.3m$ length of rod

Replacing then,

$H = \frac{kA\Delta T}{d}$

$H = \frac{(388)(3.6 *10^{-4})(100)}{1.3}$

$H=10.7446J$

From the definition of heat flow we know that this is also equivalent

$H = \dot{m}*L$

Where,

$\dot{m} =$ Mass per second

$L = 334J/g$ Latent heat of fusion of ice

Re-arrange to find $\dot{m},$

$H = \dot{m}*L$

$\dot{m}=\frac{L}{H}$

$\dot{m}=\frac{334}{10.7446}$

$\dot{m} = 31.08g/s$

$\dot{m}= 0.032g/s$

Therefore the mass of ice per second that melts is 0.032g

7 0

3 years ago

On December 26, 2004, a great earthquake occurred off the coast of Sumatra and triggered immense waves (tsunami) that killed som

k0ka [10]

Answers:

a) 222.22 m/s

b) 800.00 km/h

Explanation:

The speed of a wave is given by the following equation:

$v=f \lambda$

Where:

$v$ is the speed

$f=\frac{1}{T}$ is the frequency, which has an inverse relation with the period $T=1 h$

$\lambda=800 km$ is the wavelength

Solving with the given units:

$v=\frac{1}{T}\lambda$

$v=\frac{1}{1 h}800 km$

$v=800.00 km/h$ This is the speed of the wave in km/h

Transforming this speed to m/s:

$v=800.00 \frac{km}{h} \frac{1 h}{3600 s} \frac{1000 m}{1 km}$

$v=222.22 m/s$ This is the speed of the wave in m/s

5 0

3 years ago

Light enters air from water. The angle of refraction will be A. less than the angle of incidence. B. greater than or equal to th

Rina8888 [55]

Answer:

E. greater than the angle of incidence.

Explanation:

Snell's law states that:

$n_i sin \theta_i = n_r sin \theta_r$ (1)

where

$n_i, n_r$ are the refractive index of the first and second medium

$\theta_i, \theta_r$ are the angle of incidence and refraction, respectively

For light moving from water to air, we have:

$n_i = 1.33$ (index of refraction of water)

$n_r = 1.00$ (index of refraction of air)

Substituting into (1) and re-arranging the equation, we get

$\sin \theta_r = \frac{n_i}{n_r} sin \theta_i = 1.33 sin \theta_i$

which means that

$\theta_r > \theta_i$

so, the correct answer is

E. greater than the angle of incidence.

4 0

3 years ago

Read 2 more answers

Metric conversions

sergij07 [2.7K]

1:-

1L=1000mL

$\\ \sf\longmapsto 45.23L$

$\\ \sf\longmapsto 45.23\times 1000$

$\\ \sf\longmapsto 45230mL$

2:-

1hL=10000cL

$\\ \sf\longmapsto .035hL$

$\\ \sf\longmapsto 0.035\times 10000$

$\\ \sf\longmapsto 350cL$

3:-

1mm=0.0001m

$\\ \sf\longmapsto 27.32$

$\\ \sf\longmapsto 27.32\times 0.0001$

$\\ \sf\longmapsto 0.0027m$

7 0

3 years ago

How does inertia affect the motion of an object?

Furkat [3]

<u>Inertia affects the motion of an object as follows:</u>

When an object is in motion, it will continue to be in the same state unless otherwise some outside force is being applied to it. Thus, inertia affects the motion of an object. It restricts some other force being acted upon the object.

But mass of an object is directly proportional to inertia. So when the inertia is more on an object, it means that the object has more mass. For example, if there are two similar bricks, one that is made up of mortar and the other one is made of Styrofoam.

To identify which brick is made of Styrofoam without lifting the bricks, push both the bricks with equal force, the one that has less resistance tends to move faster. This means that it has less inertia and hence less mass.

4 0

3 years ago