What is the hinky pink for cloudy 24 hours?

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A scientific law is based on repeated inferences made over long periods of time.
A 2.0 kilogram mass is located 3.0 meters above the surface of earth. what is the magnitude of earth's gravitational field strenght at this location?
How is energy lost from the photosphere of a protostar replaced?
Jose’s lab instructor gives him a solution of sodium phosphate that is buffered to a pH of 4. Because of an error that he made while calibrating the pH meter, Jose’s measurements of the pH of the sodium phosphate solution are 5.4, 5.4, and 5.4. Which statement best describes his results?
Draw velocity-ime graph for uniform moion of an object , when initially body is at rest.

If the velocity of blood flow in the aorta is normally about 0.32 m/s, what beat frequency would you expect if 4.40-MHz ultrasound waves were directed along the flow and reflected from the red blood cells? Assume that the waves travel with a speed of 1540 m/s .

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Answer:

The beat frequency is 0.0019 MHz.

Explanation:

Given that,

Velocity = 0.32 m/s

Frequency = 4.40 MHz

Speed of wave = 1540 m/s

We need to calculate the frequency

Case (I),

Observer is moving away from the source

Using Doppler's effect

$f'=(v-v')/(v)f$

Where, v' = speed of observer

Put the value into the formula

$f'=(1540-0.32)/(1540)*4.40$

$f'=4.399\ MHz$

Case (II),

Cell is as the source of sound of frequency f' and it moving away from the observer.

Using formula of frequency

$f''=(v-v_(s))/(v+v_(s))* f$

$f''=(1540-0.32)/(1540+0.32)*4.399$

$f''=4.3971\ MHz$

We need to calculate the beat frequency

$\Delta f= f'-f''$

$\Delta f=4.399-4.3971=0.0019\ MHz$

Hence, The beat frequency is 0.0019 MHz.

Dark spots on the photosphere are known asA. the corona.
B. the chromosphere.
C. sunspots.
D. solar wind.

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The dark spots that are found on the photosphere are called sunspots. These are a temporary phenomena and are areas of different temperature compared to the surroundings. Sunspots are at a lower temperature compared to the surrpundings and they are created due to magnetic field flux. They can stay on from a few days to a few months and eventually decay.

C is the right answer

When a contest between two candidates is very close, people area. more likely to vote.
b. less likely to vote.
c. unlikely to notice.`
d. more likely to join a political party.

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When a contest between two candidates is veryclose, people are less likely to vote and in return, the candidate with alesser support and is expected not to win may win instead. Because people willbe expecting that the two contending and strong candidates will win anyway becausemany people are expected to vote them. So other people will choose to vote thelesser candidate, trying to even the probability of the strong winning streaksof the other candidates.

What equation can be used to calculate the time of impact when you have the impulse and force applied to an object

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Impulse = (force) x (length of time the force acts).

Divide each side by 'force' :

Length of time of the impact = (Impulse) / (force) .

Answer:

Answer is below

Explanation:

I = F △t

What function does a generator perform inside a power plant?A.The generator stores electrical energy for later use in homes and businesses.

B.The generator transforms the mechanical energy of the turbine into electrical energy.

C.The generator spins the turbine to create mechanical energy.

D.The generator spins the turbine to create electrical energy.

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The generator is called a 'generator' because it 'generates' something
that wasn't there before.

The power plant uses water, steam, or wind, to spin a turbine, and
the generator transforms the mechanical energy of the turbine into
electrical energy (which wasn't there before). (Choice-B)

B. The generator transforms the mechanical energy of the turbine into electrical energy.

Note that a generator uses mechanical energy to turn the wire loop in the magnetic field. This causes electric current to flow, creating electrical energy.

Osmotic pressure is created by the presence in a fluid of small diffusible molecules that easily move through the capillary membrane. Osmotic pressure is created by the presence in a fluid of small diffusible molecules that easily move through the capillary membrane. True False

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Answer:

False

Explanation:

When solutions of different concentration are placed, separated by a semipermeable membrane, the molecules pass from the solution with the lowest concentration of solutes to the one with the highest concentration. This generates a pressure difference on both sides of the semipermeable membrane, called osmotic pressure.

Final answer:

Osmotic pressure is created by the presence of small diffusible molecules that easily move through the capillary membrane. It draws fluid back into the capillaries, opposing hydrostatic pressure.

Explanation:

Osmotic pressure is created by the presence of small diffusible molecules that move through the capillary membrane. It is determined by osmotic concentration gradients, which are the differences in solute-to-water concentrations between the blood and tissue fluid. Osmotic pressure draws fluid back into the capillaries, opposing the hydrostatic pressure that forces fluid out of the capillary.

Osmotic pressure is created by the presence of small diffusible molecules that easily move through the capillary membrane. It draws fluid back into the capillaries, opposing hydrostatic pressure.

Learn more about osmotic pressure here:

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