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Murrr4er [49]
4 years ago
14

Which of the following are not units of frequency: Hertz. m/s. waves/s

Physics
1 answer:
ra1l [238]4 years ago
8 0

The answer is waves.

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Tectonic plates often shift position by the force of liquid rock emerging from below the Earth’s surface and then cooling to for
PSYCHO15rus [73]
D.On the ocean floor. When tectonic plates move, They move along the ocean floor, which is the crust, and It causes earthquakes and volcanoes and also caused Pangea to break apart and become what it is now The seven continents.

5 0
3 years ago
Read 2 more answers
What type of material is inside the holes in an electrical outlet?
Archy [21]
In the holes there is brass "fingers" that grab the plug prongs when you plug it in. So it's made out of brass or copper.
5 0
4 years ago
Take the following measured gauge (or gage) pressures and convert them to absolute pressures in both kPa and psi units for an am
mamaluj [8]

Answer:

Explanation:

Given

ambient Pressure =98.10 kPa

(a)gauge pressure 152 kPa

we know

Absolute pressure=gauge pressure+Vacuum  Pressure

P_{abs}=152+98.10=250.1 kPa or 36.27 psi

(b)P_{gauge}=67.5 Torr or 8.99 kpa

as 1 Torr is 0.133 kPa

P_{abs}=8.99+98.10=107.09 kPa or 15.53 psi

(c)P_{vaccum}=0.1 bar or 10 kPa

Thus absolute pressure=98.10-10=88.10 kPa or 12.77 psi

as 1 kPa is equal to 0.145 psi

(d)P_{vaccum}=0.84 atm  or 85.113 kPa

as 1 atm is equal to 101.325 kPa

P_{abs}=98.10-85.11=12.99 kPa or 1.88 psi

6 0
3 years ago
A rock is rolling down a hill. At position 1, it’s velocity is 2.0 m/s. Twelve seconds later, as it passes position 2, it’s velo
mr Goodwill [35]

Answer

Hi,

correct answer is {D} 3.5 m/s²

Explanation

Acceleration is the rate of change of velocity with time. Acceleration can occur when a moving body is speeding up, slowing down or changing direction.

Acceleration is calculated by the equation =change in velocity/change in time

a= {velocity final-velocity initial}/(change in time)

a=v-u/Δt

The units for acceleration is meters per second square m/s²

In this example, initial velocity =2.0m/s⇒u

Final velocity=44.0m/s⇒v

Time taken for change in velocity=12 s⇒Δt

a= (44-2)/12  = 42/12

3.5 m/s²

Best Wishes!

5 0
3 years ago
A 78 N block is supported by a spring whose constant is 12 N/m. Calculate the elongation of the spring under this load.
MrRa [10]

Answer:

a 6.5 m

Explanation:

f = kx =  > x =  \frac{f}{k}  =   \frac{78}{12}  = 6.5 m

5 0
3 years ago
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