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arsen [322]
3 years ago
9

PLS HURRY AND ANSWER THIS IM GIVING 100 POINTS AND ILL MARK BRAINLIEST

Physics
1 answer:
dolphi86 [110]3 years ago
3 0

Infrasound versus Ultrasound: Infrasound is sound that is beneath the lower furthest reaches of human hearing, under 20 Hz, and ultrasound is over the maximum furthest reaches of human hearing, over 20,000 Hz. People use infrasound - this repeat run for checking seismic quakes and volcanoes, charting rock and oil improvements under the earth. Infrasound is depicted by an ability to get around blocks with little dispersing.

For example, a couple of animals, for instance, whales, elephants and giraffes pass on using infrasound over huge distances. Heavy slides, volcanoes, seismic quakes, ocean waves, water falls and meteors produce infrasonic waves. Indicative ultrasound, moreover called sonography or definite clinical sonography, is an imaging method that uses high-repeat sound waves to make pictures of designs inside your body. The photos can give significant information to diagnosing and treating a variety of infirmities and conditions.

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Can someone help me its really hard to do d is stuff​
Tasya [4]

Answer:

direction, speed

means the object is staying still, 0

newtons, N

the sum of all the forces acting on an object

Explanation:

3 0
3 years ago
What is the last planet discovered?
Bumek [7]
Pluto is the last planet discovered in our solar system.
6 0
3 years ago
In a 30.0-s interval, 500 hailstones strike a glass window with an area of 0.600m2 at an angle of 45.0°to the window surface. Ea
aliina [53]

or one hailstone we have;
Force = Mass X acceleration = 0.005kg x 9.8.} This is when the hailstone is not inclined at an angle.
When the hailstone is inclined at an angle of 45, then the component of force along the glass window will be F =0.005kg x 9.8 x sin45= 0.005kg x 9.8 x 0.707= 0.0346N.
Therefore, total force for the 500 hailstones would be 500x0.0346N=17.32N
This force is acting on an area equal to 0.600m2
Pressure = Force per unit area = 17.32N/0.600m2 = 28.9Pa

5 0
3 years ago
A cloud mass moving across the ocean at an altitude of 2000 m encounters a coastal mountain range. As it rises to a height of 35
GREYUIT [131]

Answer:

snow

Explanation:

Since the process undergoes adiabatic expansion, hence q = 0 and ΔU = w.

We can sole this problem using the following derivation:

ln(\frac{T_2}{T_1} )=-(\gamma -1)ln(\frac{V_f}{V_i} )=-(\gamma -1)ln(\frac{T_2}{T_1}\frac{P_i}{P_f}  )\\=-(\gamma -1)ln(\frac{T_2}{T_1})-(\gamma -1)ln(\frac{P_i}{P_f})\\=-(\frac{\gamma -1}{\gamma})ln(\frac{P_i}{P_f})\\=-(\frac{\frac{C_{p,m}}{C_{p,m}-R} -1}{\frac{C_{p,m}}{C_{p,m}-R}})ln(\frac{P_i}{P_f})\\\\ln(\frac{T_2}{T_1} )==-(\frac{\frac{C_{p,m}}{C_{p,m}-R} -1}{\frac{C_{p,m}}{C_{p,m}-R}})ln(\frac{P_i}{P_f})\\\\Substituting\ values:\\\\

ln(\frac{T_2}{T_1} )=-(\frac{\frac{28.86}{28.86-8.314} -1}{\frac{28.86}{28.86-8.314}})ln(\frac{0.802\ atm}{0.602\ atm})=-0.0826\\\\ln(\frac{T_2}{T_1} )=-0.0826\\\\Taking\ exponential\ of\ both \ sides:\\\\\frac{T_2}{T_1} =e^{-0.0826}\\\\T_2=0.9207T_1\\\\T_2=0.9207*288\\\\T_2=265\ K\\

Since T2 = 265 K, we should expect a snow

4 0
3 years ago
A car travels 60 miles in 3 hours. Calculate the speed.
Aleks04 [339]

Answer:

20

Explanation:

speed= distance / time 60miles/30hour=2miles/hours

4 0
3 years ago
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