A storage tank contains petrol to a height of 4. 7m. If the pressure at the base of the tank is "32. 3" kPa, determine the density of the petrol. Take the acceleration due to gravity to be 9. 81ms^-2.

251 atm pressure is transmitted in the hydraulic system.

According to Pascal's principle,

P₂ = P₁

⇒ F₁/A₁                                                      ( ∵ pressure = force / area)

⇒ F₁ /πr₁²

r₁ = 0.500 m /2 = 0.250 m

An applied force of 100 N to the brake pedal acts in the cylinder through a lever. This will exert a force of 500 due to the lever of the hydraulic system.

Hence, P₂ =F₁/πr₁²

                = 500 N/ π (0.250 × 10⁻²)²

                = 2.55 × 10⁷ Pa

Convert the unit of the pressure from Pa to atm

P₂ = 2.55 × 10⁷ Pa ( 1 atm /1.01325  10⁵ Pa)

     = 251 atm

Hydraulic systems function and carry out duties thru the use of a fluid that is pressurized. every other manner to put this is the pressurized fluid that makes things paintings. The energy of liquid gasoline in hydraulics is massive and as a result, hydraulics are generally used in heavy devices.

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Answer: 1 m/s/s

Explanation: One Newton is defined as the amount of force required to give a 1-kg mass an acceleration of 1 m/s/s.

Answer:

  75.645 J

Explanation:

The kinetic energy is related to the mass and velocity by the formula ...

  KE = 1/2mv²

For the given mass of 0.045 kg, and velocity of 41 m/s, the kinetic energy is ...

  KE = 1/2(0.045 kg)(41 m/s)² = 75.645 J

__

The unit of energy, joule, is a derived unit equal to 1 kg·m²/s².

Answer: The change in momentum is +20 kg.m/s

Explanation:

To calculate the final velocity of object, we use the first equation of motion:

\(v=u+at\)

where,

v = final velocity

u = initial velocity = 0 m/s

a = acceleration = \(10m/s^2\)

t = time = 0.5 s

Putting values in above equation, we get:

\(v=0+(10\times 0.5)\\\\v=5m/s\)

Momentum is defined as the product of the mass and velocity of an object. It is given by the equation:

\(p=mv\)

where,

p = momentum

m = mass of object = 2 kg

Let the upward velocity be positive and the downward velocity be negative

When the object is dropped, the velocity is downward

v = -5m/s

Initial momentum = \(2kg\times (-5m/s)=-10kg.m/s\)

When the object is bounced back, the velocity is upward

v = +5m/s

Final momentum = \(2kg\times (+5m/s)=10kg.m/s\)

Change in momentum = Final - Inital

Change in momentum = [10 - (-10)] = +20 kg.m/s

Hence, the change in momentum is +20 kg.m/s

Answer:

let the age of elder sister = x+8

then let the age of younger sister be x

sum of their ages = 64

according to the question,

x+8+x = 64

2x+8 = 64

2x = 64-8

2x = 56

x = 56/ 2

x = 28

so, the age of younger sister is 28 years

and the age of elder sister is x+8= 28+8= 36years

Answer:

its probably f or h for 4 and 5 is answer location

Answer:

See below

Explanation:

4   H      explains the months with the highest bars for both locales

5    B      as the air rises the water vapor condenses and falls as rain on location B

Therefore, based on the estimated duration of a galactic year, Earth has been around for approximately 18.4 to 20.4 galactic ye

A "galactic year" refers to the time it takes for our solar system to complete one orbit around the Milky Way galaxy. The exact duration of a galactic year is not precisely determined due to various factors, such as the varying speeds of stars within the galaxy. However, it is estimated to be roughly 225-250 million years.

To calculate the number of galactic years Earth has been around based on the age of the solar system (4.6 billion years), we can divide the age of the solar system by the estimated duration of a galactic year:

Number of Galactic Years = Age of the Solar System ÷ Duration of a Galactic Year

Number of Galactic Years = 4.6 billion years ÷ 225-250 million years

Number of Galactic Years ≈ 18.4 to 20.4 galactic years

Therefore, based on the estimated duration of a galactic year, Earth has been around for approximately 18.4 to 20.4 galactic years.

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Similar like magnets, opposites are drawn together. A magnet's north pole will adhere to another magnet's south pole. However, a magnet's north pole will push away from another magnet's north pole.

When two diametrically opposed poles combine, the same logic applies. The magnets are compelled to come together because of the intense attraction.

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Answer:

It's all about the conduction between the pan and the cookies.

Explanation:

The cookies in the middle of the pan are not going to be cooked as much as the cookies touching both the bottom of the pan and the side of the pan due to the level of heat being given to those outside cookies. Lets try an example:

Lets say you're in a car in the middle of summer. You and your sibling sit on opposite sides of your other sibling, who is sitting in the middle seat. You and your other sibling are pressed up against the door of the car, making you heat up quicker since not only is it hot in the car, the sun is also on you. Meanwhile your other sibling isn't getting as much heat (but is still warm).

I hope this was able to help! There weren't any answers listed, so it may be the following:

- Conduction of heat

- Transfer of heat

- The pan heating up more of the cookie

- The conversion of more heat energy to the outside cookies

Good luck!

Answer:

A) but be sure and read the answer.

Explanation:

If the object does not move at all, (that's an important restriction) the net force = 0. That being so, the acceleration must be 0 as well. But there is no law saying that there cannot be a constant motion and that's why the restriction is important.

wellll that would be in earth crust

Answer:

in space

Explanation:

its a planet

Answer:

Velocity is the displacement of an object during a specific unit of time

Answer:

It is C the units and D

Explanation:

18.)C

19.)D

Answer:

50%.......

Explanation:

is the correct check it then send feedback

The correct option is option e) cross product

The cross-product is a new way of "multiplying" two vectors. It results in a new vector that is perpendicular to both the original vectors and its magnitude is given by the area of the parallelogram formed by the two original vectors.

In three-dimensional space, cross-product is a binary operation on two vectors. It yields a vector perpendicular to both vectors. a b represents the vector product of two vectors, a and b. Its resulting vector is parallel to a and b. Cross goods are another name for vector products.

The cross-product has four basic applications:

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In a mass spectrometer, the energy of ions is not directly proportional to their charge. The energy of ions in a mass spectrometer is determined by the acceleration voltage applied to them, which is independent of their charge.

In a typical mass spectrometer, ions are produced from a sample and then accelerated through an electric field by applying a voltage. This acceleration voltage determines the kinetic energy of the ions. The kinetic energy of an ion is given by the equation:

KE = (1/2)mv^2

Where:

KE = Kinetic energy of the ion

m = Mass of the ion

v = Velocity of the ion

The acceleration voltage in a mass spectrometer determines the velocity of the ions, but it does not directly depend on the charge of the ions. The charge of the ions affects their trajectory in the magnetic field of the mass spectrometer, which is used to separate and detect the ions based on their mass-to-charge ratio. However, the energy of the ions is determined by the acceleration voltage and the mass of the ions, not their charge.

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Generally, the coefficient of static friction should be at least 0.7 for a car traveling at this speed, but this value could be higher depending on the specific conditions.

The coefficient of static friction, or μs, is the ratio of the maximum static force that can be applied without causing slipping to the normal force between two surfaces. The coefficient is affected by the surfaces in contact and the material they are made of.

The tires of a car also have an effect on the coefficient of static friction. Tires with a greater tread depth can provide better grip on the road and therefore have a higher coefficient of static friction than tires with a shallow tread. Tire pressure also plays a role, as low pressure can reduce the coefficient of static friction.

The weight of the vehicle is also an important factor. Heavier vehicles tend to have a higher coefficient of static friction, as the greater mass increases the normal force between the car and the surface.

In conclusion, the coefficient of static friction for a car traveling at 115 km/h around a turn depends on several factors, including the road surface, the vehicle's tires, and the vehicle's weight.

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The gravitational potential energy of the stone is +2.5 J.

Gravitational capability strength is electricity an item possesses because of its function in a gravitational area. The most common use of gravitational ability power is for an object near the floor of the Earth in which the gravitational acceleration may be assumed to be regular at about nine.eight m/s2.

Gravitational strength or gravitational potential energy is the capacity power a large item has when it comes to any other large item because of gravity. it's far the ability power associated with the gravitational area, that is released when the gadgets fall closer to each different.

(a) y = 1.3m: U = mgh = (0.20kg)(9.80m/s*)(1.3m) = +2.5T

(b) y =-5.0m : U = mgh = (0.20kg)(9.80m/s”)(-5.0m) = —9.83

(0) AU =U,--U; = (-9.83)-(2.5J) = -12.3 = -123

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Answer:

a graduated cylinder

Explanation:

Graduated cylinders are generally more accurate and precise than laboratory flasks and beakers, but they should not be used to perform volumetric analysis; volumetric glassware, such as a volumetric flask or volumetric pipette, should be used, as it is even more accurate and precise.

I hope it had helped you

Answer:

Graduated Cylinder

Explanation:

Graduated cylinders are generally more accurate and precise than laboratory flasks and beakers, but they should not be used to perform volumetric analysis; volumetric glassware, such as a volumetric flask or volumetric pipette, should be used, as it is even more accurate and precise.

Hopefully this helped!

-✩sandwichchan✩

Answer:

2

Explanation:

Answer:

the catcher and outfielder

Explanation:

Answer: The catcher and the player at first base are the only players permitted to wear mitts rather than gloves. So, the answer would be 3.

Explanation: I had this on a quiz and got it right.

Hope this helps!

Answer:

As one goes "forward" in time, the second law of thermodynamics says, the entropy of an isolated system can increase, but not decrease. ... Thus, entropy measurement is a way of distinguishing the past from the future.

Explanation:

We will have the following:

First, we recall that speed is the time reat at which an object moves along a path and that velocity is the rate and direction of an object's movement.

From this we can see taht the correct option is:

Snake's speed was constant, but nos his velocity. [First option]

Answer:

6 newtons

Explanation:

If it's an equal force exerted on the student's hands, the object will not move.

If a student pushes on an object with a force of 6 newtons and the object does not move then the force exerted by the object on the student’s hands would be 6 Newtons because the applied force is equal to the static frictional force until the object does not move.

Friction is a type of force that resists or prevents the relative motion of two physical objects when their surfaces come in contact

As given in the problem If a student pushes on an object with a force of 6 newtons and the object does not move then we have to find out the force exerted by the object on the student’s hands,

Force applied by the student of the object = 6 Newtons

The force exerted by the object on the student's hand = 6 Newtons

Thus, the force exerted by the object on the student’s hands would be 6 Newtons

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Answer:

the baby would still be 30 kg on the moon because that’s mass, not weight.

However, it will feel like 5 kg, because the acceleration is 1/6 and the force is 1/6 and the actual weight (product of mass and acceleration will be 1/6).

The child has a mass of 30 kg on earth and has one-sixth gravity on the moon will have a weight of 50 kg on the moon.

Gravity is a fundamental interaction that causes all objects with mass or energy to attract one another. The weakest of the four fundamental interactions is gravity, by far. The Moon's gravity causes sublunar tides in the oceans, just as gravity on Earth imparts weight to physical objects.

Given:

The mass of the child (m) = 30 kg,

The gravity on the moon (G) = 1/6 of the earth.

To calculate the weight of the child on the moon, use the formula given below,

F = m × a

Here

\(F\) is the weight, \(m\) is the mass and \(a\) is the gravity on earth, gravity on earth \(10\ m/s^2\).

Substitute the values

\(F=30*10/6\)

\(F = 50\ kg\)

Therefore, the weight of a child on the moon is 50 kg.

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