Helppp me obi-wan canobi. you are my only hope ;) hehe

Answer:

A

Explanation:

They Are Smoother and the other guy makes no sense.

Answer:

8165.138kg/cubic meter

Explanation:

Pressure= 80100 Pascal.= 1N/m^2

Height=10.2 meters

density of the fluid in kg/cubic meter= ?

g=acceleration due to gravity= 9.81m/s^2

The pressure of a system can be calculated using the expression below

P = ρ g h

Where

p =pressure,

h =depth of the liquid,

ρ = density of the liquid,

g = acceleration due to gravity.

If we substitute those values we have

80100 1N/m^2= ρ × 9.81m/s^2

ρ= 80100/9.81

ρ=8165.138kg/cubic meter

Hence, the density of the fluid in kg/cubic meter is 8165.138kg/cubic meter

Answer:

Fossil fuels have been used for centuries to generate power, but there are many disadvantages associated with their use:

Fossil fuels pollute the environment.

Fossil fuels are non-renewable and unsustainable.

Drilling for fossil fuels is a dangerous process.

Explanation:

can you help me please? https://brainly.com/question/21745542

Answer:

the answer is letter; C

Explanation:

Answer:

Yes, it would be enough.

Explanation:

The volume of the tank (cylinder tank) is given by the following equation:

[tex]V_{initial}=\pi (\frac{D}{2})^{2}h[/tex]

Where:

D is the diameter of the tank

h is the height of the tank

Now, the engineer makes a tank 1.26 times as big in heigh and 1.41 times as large with respect to diameter, then the new volume of this tank will be:

[tex]V_{new}=\pi (\frac{1.41D}{2})^{2}1.26h[/tex]    

[tex]V_{new}=1.41^2*1.26\pi (\frac{D}{2})^{2}h[/tex]

[tex]V_{new}=2.51\pi (\frac{D}{2})^{2}h[/tex]

in terms of the initial volume:

[tex]V_{new}=2.51V_{initial}[/tex]

Which means that the volume of the water could be doubled.

I hope it helps you!

Answer:

o The result of a chemical change is a different  composition; in a physical change, the composition  remains the same.

Explanation:

In a chemical change, new kinds of matter are produced although the atoms are the same.

For physical changes, no new kinds of matter formed. Only the state of substances changes.

Answer:

The metal screw is pushing on the magnet.

Answer:

The gravitational force that an 81-kg person would experience while standing on the surface of Venus is approximately;

(A) 719 N

Explanation:

The question relates to gravity calculation for which we use the Newton's gravitational law which is presented as follows;

[tex]F=G \cdot \dfrac{M \cdot m}{r^{2}}[/tex]

Where;

G = The universal gravitational constant = 6.67408 × 10⁻¹¹ m³kg⁻¹s⁻²

F = The gravitational force between the two masses, "M" and "m"

r = The distance between the centers of the two masses

M = The mass of one body interacting in the gravitational force

m = The mass of the other body interacting in the gravitational force

The given parameters are;

The mass of Venus, M = 4.87 × 10²⁴ kg

The radius of the planet Venus, r (is corrected) = 6.05 × 10³ km  = 6.05 × 10⁶ km

The mass of the person standing on the surface of Venus, m = 81-kg

Therefore, by plugging in the values, we get;

[tex]F=6.67408 \times 10^{-11} \cdot \dfrac{4.87 \times 10^{24} \times 81}{(6.05 \times 10^6)^{2}} = 719.2744587391571613960795027662 \ N[/tex]

From Newton's third law of motion, the gravitational force that the 81-kg person experiences while standing on the surface of Venus = F ≈ 719 N.

Answer:

Significant figures are the number of digits in a value, often a measurement, that contribute to the degree of accuracy of the value. We start counting significant figures at the first non-zero digit. Calculate the number of significant figures for an assortment of numbers.

Explanation:

any of the digits of a number beginning with the digit farthest to the left that is not zero and ending with the last digit farthest to the right that is either not zero or that is a zero but is considered to be exact. — called also significant figure.

Answer:

Newton first law

Explanation:

Newton's first law states that, if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force. The hockey puck moved because you hit it. ( tell me if I helped I hope you do good)

Answer: Local governments can resolve a conflict by cooperating and spreading the costs of expensive projects. What kinds of problems cause state governments to help local governments? No economic growth or improvements are problems that cause governments to help local governments.

Answer its false

Explanation:

Answer:

[tex]9\ m/s^2[/tex]

Explanation:

Net Force

The Second Newton's law states that an object acquires acceleration when an external unbalanced net force is applied to it.

The acceleration is proportional to the net force and inversely proportional to the mass of the object.

It can be expressed with the formula:

[tex]\displaystyle a=\frac{F_n}{m}[/tex]

Where

Fn = Net force

m  = mass

An object has an acceleration of [tex]18\ m/s^2[/tex], thus:

[tex]\displaystyle \frac{F_n}{m}=18\ m/s^2[/tex]

If the new force is halved:

F' = F_n/2, the new acceleration will be:

[tex]\displaystyle a'=\frac{F_n/2}{m}[/tex]

[tex]\displaystyle a'=\frac{1}{2}\cdot\frac{F_n}{m}[/tex]

Substituting the given acceleration:

[tex]\displaystyle a'=\frac{1}{2}\cdot 18\ m/s^2[/tex]

[tex]\displaystyle a'=9\ m/s^2[/tex]

The new acceleration is [tex]9\ m/s^2[/tex]

Answer:

They are equal

Explanation:

Multiply the mass by the velocity.

Answer:

We begin by solving the equation P = hρg for depth h: h=Pρg h = P ρ g . Then we take P to be 1.00 atm and ρ to be the density of the water that creates the pressure.

Explanation:

if it helps problem doesn't sorry

Answer:

d = 61.75 m

Explanation:

Given that,

A ball droped from a building.

We need to find how fast is it traveling after falling 3.55 s.

As it is dropped, its initial velocity is equal to 0.

Let d is the distance it covers after falling 3.55 s.

We can use second equation of motion to find d.

[tex]d=ut+\dfrac{1}{2}at^2[/tex]

Here, u = 0 and a =g

[tex]d=\dfrac{1}{2}gt^2\\\\d=\dfrac{1}{2}\times 9.8\times (3.55)^2\\\\d=61.75\ m[/tex]

So, it will cover 61.75 m after falling 3.55 seconds.

Answer:

20 minutes

Explanation:

.....

.........

Answer:

A velocity

B acceleration

C ms^-2

Answer:

a. RT = 9 Ohms

b. RT = 0.5 Ohms

Explanation:

Let the two resistors be A and B.

Let RT be equivalent resistance.

Given the following data;

Resistor A = 6ohms

Resistor B = 3ohms

a. To find the equivalent series resistance;

RT = RA + RB

RT = 6 + 3

RT = 9 Ohms

b. To find the equivalent parallel resistance;

RT = 1/RA + 1/RB

Substituting into the equation, we have

RT = 1/6 + 1/3

RT = 3/6

RT = 0.5 Ohms

As here the 6 ohm and 3 ohm resistors are first connected in series and then parallel, so we can just find out the equivalent series resistance by the formula of it, which is the individual sum of all resistors (for series) and for parallel combination, the reciprocal of the total resistance is the individual reciprocal sum of all resistors, so if we apply same Formula here for series first, then we will be having :

[tex]{:\implies \quad \sf R_{s}=6+3}[/tex]

[tex]{:\implies \quad \boxed{\bf{R_{s}=9\Omega}}}[/tex]

Now, for parallel combination:

[tex]{:\implies \quad \sf \dfrac{1}{R_{p}}=\dfrac13 +\dfrac16}[/tex]

[tex]{:\implies \quad \sf \dfrac{1}{R_{p}}=\dfrac{2+1}{6}}[/tex]

[tex]{:\implies \quad \sf \dfrac{1}{R_{p}}=\dfrac36}[/tex]

[tex]{:\implies \quad \sf \dfrac{1}{R_{p}}=\dfrac12}[/tex]

[tex]{:\implies \quad \boxed{\bf{R_{p}=2\Omega}}}[/tex]

For more information related to Resistances, voltage and current, make sure to check the similar question from here :

Answer:

Clouds form when below the dew point

Clouds form when the air is cooled below the dew point. The dew point is the temperature at which the air becomes saturated, meaning it can no longer hold all the water vapor it contains. The correct answer is the dew point.

When the air cools below this temperature, the excess water vapor condenses into tiny water droplets or ice crystals, forming clouds.

The dew point is an important concept in meteorology and refers to the temperature at which the air becomes saturated, leading to the formation of dew, fog, or clouds. It is the temperature at which the air can no longer hold all the water vapor it contains, resulting in the condensation of water vapor into liquid water droplets.

When air is cooled, its capacity to hold water vapor decreases. As the temperature drops, the air reaches a point where it becomes saturated, meaning the air is holding the maximum amount of water vapor it can at that specific temperature and pressure. This temperature is known as the dew point.

Therefore, while relative humidity, water content, and percent saturation are relevant factors in understanding the moisture content of the air, clouds specifically form when the air is cooled below the dew point. The correct answer is the dew point.

For more details regarding dew point, visit:

https://brainly.com/question/15313810

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Answer:

quantity A is mass and quantity B is wright

Answer:

Series.

Explanation:

Ohm's law states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points and inversely proportional to the resistance in the electrical circuit.

Mathematically, Ohm's law is given by the formula;

[tex] V = IR[/tex]

Where;

V represents voltage measured in voltage.

I represents current measured in amperes.

R represents resistance measured in ohms.

A series circuit is when there is only one path to and from the power source. Thus, the amount of current flowing through the circuit is the same while the voltage is given by the summation of each voltage across each component in the electrical circuit.

Answer:

-3m+7m =  4m

Explanation:

As he walks south, he is going down 3m (-3m). Then he walks up 7m (+7m).

You subtract the final position from the initial position to get displacement.

7m - 3m = 4m

Answer:

215000kgm/s

Explanation:

Given parameters:

Mass of the moving body  = 5000kg

Velocity  = 43m/s

Unknown:

Momentum  = ?

Solution:

The momentum of a body is the amount of motion a body possess.

 It is mathematically expressed as:

  Momentum  = mass x velocity

 Now:

  Momentum  = 5000 x 43  = 215000kgm/s

Answer:

1 and 2 because atomic number is equal to the numbers of protons in the nucleus

Answer:

yes answer in 1 and 2 these is answer

Explanation:

Efficiency is defined as the ratio between the useful output over the total amount consumed. [tex]E = \frac{useful}{total}[/tex]

The fan does 500W of useful work while wasting 300 W. The total power consumption is 800 W (500 + 300).

Answer:

1. Sound waves are changed into electrical

2. Radio waves are released by transmitter

by radios

3. Radio waves are converted to sound waves

Explanation:

Answer:

The person in front of me is right

Explanation:

There’s my proof

Answer:

The atom is now a negative charge

Explanation:

Adding electrons makes things negative.

Answer:

Their resultant force magnitude on the sleigh is approximately 583.095 N

Explanation:

The given parameters are;

The magnitude and direction in which the two reindeer-in-training pull on the sleigh are;

The force with which Connie pulls on the sleigh, F₁ = 200 N

The direction in which Connie pulls on the sleigh = 60° above the x-axis

The force with which Randolph pulls on the sleigh, F₂ = 800 N

The direction in which Connie pulls on the sleigh = 60° below the x-axis

The vector form of the force with which the two reindeer-in-training pulls the sleigh is given as follows;

[tex]\underset{F_1}{\rightarrow}[/tex] = 200 × cos(60°)·i + 200 × sin(60°)·j = 100·i + (100·√3)·j

[tex]\underset{F_2}{\rightarrow}[/tex] = 800 × cos(60°)·i - 800 × sin(60°)·j = 400·i - (400·√3)·j

The resultant force, R = [tex]\underset{F_1}{\rightarrow}[/tex] + [tex]\underset{F_2}{\rightarrow}[/tex]

∴ R = 100·i + (100·√3)·j + 400·i - (400·√3)·j = 500·i - (300·√3)·j

Their resultant force magnitude on the sleigh, [tex]\left | R \right |[/tex] = √(500² + (-300)²) ≈ 583.095 N

The direction of the resultant force = arctan(-300/500) = arctan(-0.6) ≈ -30.964 which is approximately 30.964° below the x-axis.