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andreev551 [17]
3 years ago
14

Which description accurately describes the tide represented by the image below?

Physics
2 answers:
igomit [66]3 years ago
8 0
<span>The gravitational pull of the sun and moon combined
create larger than normal tides.</span>
luda_lava [24]3 years ago
7 0
Its the first statement:
<span>
The gravitational pull of the sun and moon combined create larger than normal tides. 
 -It's especially in this event, when the sun and moon are aligned, that the tides rise higher</span>
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The wooden block is removed from the water bath and placed in an unknown liquid. In this liquid, only one-third of the wooden bl
anygoal [31]

Answer:

1.5 g/cm^3

Explanation:

In the question i am assuming that wooden block of weight W floats with exactly one-half of its volume below the waterline.

Let ρ_{liquid} be the density of the unknown liquid , V= volume submerged

g= acceleration due to gravity

then

weight of block = \rho_{water}\times V\times g/2

when the block is in water

Also,

weight of block = \rho_{liquid}\times V\times g/3

dividing eq 1 by eq 2 we get

\rho_{liquid} = 3/2 \rho_{water}

⇒\rho_{liquid} = 3/2

4 0
3 years ago
How can a heat pump warm a house by causing a refrigerant to evaporate and condense
sveta [45]
The hot discharge gas from the refrigerant compressor is normally cooled and condensed at high pressure. This is then passed through an 'Expansion' valve which decreases the pressure to a low level causing expansion of the refrigerant liquid. 
<span>The liquid partially vapourises causing a 'Joule's/Thompson' refrigeration effect' which decreases temperature of the refrigerant which then passes to an evaporator coil in the air circulation system of the building. </span>
<span>In the evaporator coil, the heat exchange between the cold refrigerant and the warm air of the building, vaporises and heats the refrigerant which returns to the compressor. </span>
<span>The cycle is repeated until the air temperature reaches the thermostat set-point and switches off the system. </span>

<span>As a Heat pump, the hot refrigerant gas is not evaporating and condensing. </span>
<span>From the compressor discharge, the hot gas is by-passing the cooler/condenser unit and the expansion valve and passes directly to the 'evaporator' coils but now, as the heating medium for the air circulation system where it's cooled by the heat exchange between the hot gas and the cooler air in the building and returns to the compressor in a continuous cycle. </span>

<span>A Thermostat in the system starts and stops the compressor motor according to the heat or cool temperature settings.</span>
4 0
3 years ago
Light from a helium-neon laser (? = 633 nm) is used to illuminate two narrow slits. The interference pattern is observed on a sc
Sladkaya [172]

Answer:

0.3376 mm

Explanation:

The computation of the spacing in mm between the slits is shown below:

As we know that

d = \frac{m\lambda L}{\Delta y}

where,

\lambda = wavelength

L = distance from the scrren

\Delta y = spanning distance

As there are 11 bright fingers seen so m would be

= 11 - 1

= 10

Now placing these values to the above formula

So, the spacing is

= \frac{(10)(633 \times 10^{-9})(3.2m)}{60 \times 10^{-3}}

= 0.3376 mm

We simply applied the above formula.

6 0
3 years ago
Read 2 more answers
Laws that implemented the consumers' right to be informed forbid __________.
Reptile [31]

Laws that implemented the consumers' right to be informed forbid misleading advertising.

Answer is C.

4 0
3 years ago
Read 2 more answers
Complete the statement below with all that apply.
lianna [129]
Acceleration is the rate of change of velocity, and velocity is the change in displacement over the change in time so the answer would be A.
3 0
3 years ago
Read 2 more answers
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