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Rasek [7]
2 years ago
15

Which geologic feature would most likely be represented by contour lines drawn far apart from one another?

Physics
1 answer:
Anna [14]2 years ago
5 0
It would most definitely not be a hill or a cliff. I believe it would be a plain.
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Electromagnetic radiation that is used by humans and animals to see is called the visible light spectrum.
Kruka [31]

Answer:

<h2>True Hope it's helpful. plz mark me as brainlist. </h2>
5 0
3 years ago
HELP PLZ!!<br> can the kinetic energy of an object be negative? explain
BARSIC [14]

Answer:

No it can not

Explanation: Kinetic energy is the energy of motion so it can not be negative the kinetic energy can only be at a point of "0" which is when its not moving. (I hope this helped) :))

7 0
2 years ago
Lilli suggests that they explore the simulation starting with varying only a single parameter in order to understand the role of
mrs_skeptik [129]

Answer:

B.

Explanation:

One of the ways to address this issue is through the options given by the statement. The concepts related to the continuity equation and the Bernoulli equation.

Through these two equations it is possible to observe the behavior of the fluid, specifically the velocity at a constant height.

By definition the equation of continuity is,

A_1V_1=A_2V_2

In the problem A_2 is 2A_1, then

A_1V_1=2A_1V_2

V_2 = \frac{V_1}{2}

<em>Here we can conclude that by means of the continuity when increasing the Area, a decrease will be obtained - in the diminished times in the area - in the speed.</em>

For the particular case of Bernoulli we have to

P_1 + \frac{1}{2}\rho V_1^2 = P_2 +\frac{1}{2}\rho V_2^2

P_2-P_1 = \frac{1}{2} \rho (V_1^2-V_2^2)

For the previous definition we can now replace,

P_2-P_1 = \frac{1}{2} \rho (V_1^2-(\frac{V_1}{2})^2)

\Delta P =  \frac{3}{8} \rho V_1^2

<em>Expressed from Bernoulli's equation we can identify that the greater the change that exists in pressure, fluid velocity will tend to decrease</em>

The correct answer is B: "If we increase A2 then by the continuity equation the speed of the fluid should decrease. Bernoulli's equation then shows that if the velocity of the fluid decreases (at constant height conditions) then the pressure of the fluid should increase"

4 0
3 years ago
A 55 kg cheerleader uses an oil-filled hydraulic lift to hold four 110 kg football players at a height of 1.0 m. If her piston i
AVprozaik [17]

Answer:

D = 55.2 cm

Explanation:

As we know that the total mass of the all four players is given as

M = 4\times 110

M = 440 kg

diameter of the piston of cheer leader is given as

d_1 = 16 cm

are of cross-section is given as

A_1 = \pi r^2

A_1 = \pi(0.08)^2 = 0.02 m^2

mass of the cheer leader is given as

m = 55 kg

so the pressure due to cheer leader is given as

P_{in} = \frac{mg}{A_1}

P_{in} = \frac{55 \times 9.81}{0.02}

P_{in} = 26835 Pa

Now on the other side pressure must be same

so we have

\frac{Mg}{A} + \rho gH = P_{in}

\frac{440 \times 9.8}{A} + (900)(9.8)(1) = 26835

A = 0.24 m^2

\pi r^2 = 0.24

r = 0.276 m

so diameter on the other side is given as

D = 2 r

D = 55.2 cm

8 0
3 years ago
1 point
RoseWind [281]

Answer:

Bacteria and Fungus

6 0
3 years ago
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