Describe how work done is related to a change in volume of a fluid. 100 points

Answer:

Well before every single shift.

Explanation:

I acutally learned this yesterday

Answer:

Stronger and harder than either of the pure metals

Explanation:

When plug fuses are used on all new installations such as in a disconnect switch for a clothes dryer, the fuses must be type S.

Type S fuses are also called tamper proof fuses because each fuse size has a different base and thread size.

These fuses also require the use of a special adapter which is screwed into the standard Edison base of the fuse holder.

Thus, when plug fuses are used on all new installations such as in a disconnect switch for a clothes dryer, the fuses must be type S.

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#1

True

All metals attract magnets

#2

Yes true

Away from magnetic field if you place something it won't attract that

#3

False

Its only possible in case of electromagnetic force fields .

#4

False

Electromagnetic force field

#5

True

Balanced forces are forces that do not result to change in motion while unbalanced forces are forces that result to change in motion.

Force is defined as the product of mass and acceleration of an object. That is Force = mass × acceleration.

Balanced force is a type of force that do not result to change because the forces are equal in size and opposite.

Unbalanced force is a type of force that result to change because forces on the opposite sides are not equal.

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Answer:

200ft

Explanation:

To find out how much distance the man covered, you need to find the perimeter of the rectangle. To find the perimeter of a rectangle, the formula is:

P = (L + H) × 2

Step 1

Plug in the values for L and H.

P = (70 + 30) × 2

Step 2

Add 70 and 30, because you need to add parentheses first.

P = (100) × 2

Step 3

Remove parentheses, and multiply 100 by 2.

P = 100 × 2

P = 200

Thus, the man walked 200 feet in distance.

Answer:

https://stats.stackexchange.com/questions/454120/how-can-i-calculate-uncertainty-of-the-mean-of-a-set-of-samples-with-different-u

Explanation:

The product label which Mateo should place in the marked cell is that it: B. provides electrical energy.

A product label refers to a paper-document which contains information about the chemical elements, nutrients, and other compounds that are present in a product and its function.

In this scenario, the product label which Mateo should place in the marked cell is that this product was designed and developed to provide electrical energy, based on the electrical symbol for battery shown in the image attached below.

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Answer:

g = 1.62 N/kg

Explanation:

g = GM/r²

  = (6.67 x 10⁻¹¹   x   7.35 x 10²²) / (1738 x 10³)²

  = 1.62 N/kg

Hope this helps!

The option that can be expressed in light years is " the distance between two stars." The correct option is B.

A light-year is a unit of distance used to measure astronomical distances. It is defined as the distance that light travels in one Earth year in the vacuum of space, which is approximately 9.46 trillion kilometers (5.88 trillion miles). Light travels at a speed of about 299,792,458 meters per second (or approximately 186,282 miles per second), which means that in one year, light can cover a distance of 9.46 trillion kilometers. Light years are commonly used to measure the distance between stars and galaxies, and since space is vast, other units of distance are often not practical.

Here in the Question,

A] The age of a rock is a measure of time, usually in millions or billions of years, and cannot be expressed in light years, which is a unit of distance.

C] The speed at which the Earth revolves around the sun is measured in kilometers per second or miles per hour and represents a velocity, not a distance. Hence it cannot be expressed in light years.

D] The time it takes for Earth to complete a revolution around the sun is measured in days or years and is again a measure of time, not distance. So it cannot be expressed in light years.

Therefore, Only B The distance between two stars is a measure of distance, which can be expressed in light years since it is a vast distance and other units may not be suitable.

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Answer:

Hydrated iron(III) oxide, or ferric oxide

Explanation:

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Weather

Explanation:

As during climate only one season change to another and it's a long period of time

while in weather it's can change into any season for few days depending on the relief of the area.

Answer:

weather

Explanation:

There is often confusion between weather and climate. Weather is the condition of the atmosphere at a particular place over a short period of time.

Answer:1mm

Explanation:

Answer:

B

Explanation:

the lines WILL meet at a point after crossing focal point

The work done in moving the sled 35 feet when force is aligned from the horizontal is 1583.9 lb.ft

Work done is equal to product of force applied and distance moved.

Work = Force x Distance

W = Fs cos θ

Given is the distance d =35 ft ,the force exerted F = 64lb and the angle of force from the horizontal direction is 45°.

Substituting the values, work done will be

W =64 x 35x cos 45°

W = 1583.9 lb.ft

Thus, the work done will be 1583.9 lb.ft

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Answer:

A) .27 A

Explanation:

v = ir

i = v/r

equivalent r  =   45 * 90 / (45+90) = 30 ohms    ( for the two r in parallel)

i = 8v / 30 ohm = 267 mAmps

The similarity between class 1 lever and a class 2 lever is that both levers would lift an object on the same side of the fulcrum as the applied force.

A lever is a rigid piece which is capable of turning about one point, or axis (the fulcrum), and in which are two or more other points where forces are applied.

A lever has three classes based on the position of the fulcrum as follows:

Therefore, the similarity between class 1 lever and a class 2 lever is that both levers would lift an object on the same side of the fulcrum as the applied force.

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Answer:

3.33 m/s west

Explanation:

East is the positive direction.

400kg*20m/s + 800kg*-15m/s =(400kg+800kg)*v

-4000kgm/s=1200kg*v

v=-3.33

400kg*20m/s + 800kg*-15m/s =(400kg+800kg)*v. -4000kgm/s=1200kg*v and v=-3.33.

Collision, which is also known as impact, is the abrupt, powerful coming together in close proximity of two bodies, such as two pool cues, a golf club and a ball, a hammer and a nail, two railroad cars when linked, or a falling object and a floor.

Two factors—the force and the amount of time the items are in contact—affect the outcome of impact in addition to the characteristics of the two objects' materials.

A hard steel ball dropped on a steel plate will typically rebound to almost the same location from whence it was dropped, while a putty or lead ball would not.

Therefore, 400kg*20m/s + 800kg*-15m/s =(400kg+800kg)*v. -4000kgm/s=1200kg*v and v=-3.33.

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The kinetic energy will be equal to the potential energy at top

m is mass

h is height

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Velocity is defined as total displacement occurrence by the given time interval, and since it's a Vector quantity it has direction as well.

So, the correct choice will be ~ B. 125 m/ East

Because it has unit of Velocity ( that is - m/s ) and it shows direction of displacement ( that is - East )

Tardigrades related to astronomy as they can survive in extreme, harsh environments, including space for long time without oxygen.  The correct option is A , B and C.

A special adaptation that allows the tiny animal known as the tardigrade to curl up into a dry, lifeless ball and survive for decades.

Tardigrades can undergo utter vacuum and intense pressures more than five times as in the deepest ocean. Temperatures up to 300F and as low as -458F is maintained.

They survive in space and for long time for about 10 days. They can live without water for decades.

Thus, the correct option is A , B and C.

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[tex]~~~~F=ma\\\\\implies m = \dfrac{F}a = \dfrac{200~ N}{10~ ms^{-2}} = 20~ \text{kg}\\\\\text{The mass of the object is 20 kg.}[/tex]

Answer:

b) a compound which produces ions dissolved in a solution that conduct electricity.

NaCl is an electrolyte.

The cart's acceleration to the right after the mass is released  is determined as 7.54 m/s².

The acceleration of the cart is determined from the net force acting on the mass-cart system.

Upward force = Downward force

ma = mg

13a = 10(9.8)

13a = 98

a = 98/13

a = 7.54 m/s²

Thus, the cart's acceleration to the right after the mass is released  is determined as 7.54 m/s².

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Space telescopes must be placed in orbit around earth in order to observe short-wavelength radiation.

A telescope is an optical instrument that uses lenses, curved mirrors, or a combination of both to watch distant objects.

When atoms in a gas reach this temperature, they travel so quickly that when they collide, they release X-ray photons with wavelengths smaller than 10 nanometers.

Because the Earth's atmosphere prevents all X-rays from space, these wavelengths must be seen using space telescopes.

To study short-wavelength radiation, space telescopes must be put in orbit around the Earth.

Hence, space telescope is the correct answer.

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The initial acceleration of proton and electron is 3.45 x 10¹⁸ m/s² and 6.33 x 10²¹ respectively.

The electrostatic force F between two charged objects placed distance apart is directly proportional to the product of the magnitude of charges and inversely proportional to the square of the distance between them.

F = kq₁q₂/r²

where k = 9 x 10⁹ N.m²/C²

Given is the charge on proton and electron  is q =1.6 x 10⁻¹⁹ C, distance r =2 x 10⁻¹⁰m , then the force will be

F = k q²/r²                          

Substituting the above values in the formula, we get the electrostatic force,

F = (9 x 10⁹) (1.6 x 10⁻¹⁹)²/(2 x 10⁻¹⁰)²    

F = 5.76 x 10⁻⁹ N

The acceleration of electron when both proton and electron released is

acceleration =  electrostatic force / mass of electron

Putting the values, we have initial acceleration of electron

a = (5.76 x 10⁻⁹)/(9.1 x 10⁻³¹)

a = 6.33 x 10²¹ m/s²

The acceleration of proton is due to the electrostatic force of attraction between proton and electron is given by

acceleration =  electrostatic force / mass of proton

inserting the values, we get the initial acceleration

a '= (5.76 x 10⁻⁹)/( 1.67 x 10⁻²⁷)

a'= 3.45 x 10¹⁸ m/s²

Thus, initial acceleration of proton and electron is 3.45 x 10¹⁸ m/s² and 6.33 x 10²¹ respectively.

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Hello!

We can use the equation of Newton's Law of Universal Gravitation to solve for the Force of Gravity:
[tex]F_g = \frac{Gm_1m_2}{r^2}[/tex]

Fg = Gravitational Force (N)
G = Gravitational Constant (6.67 × 10⁻¹¹ Nm²/kg²)

m1, m2 = masses (both 8.3 kg in this situation)

r = distance between the center of masses of the objects (0.165 m)

Plug in the given values and solve.

[tex]F_g = \frac{(6.67 \times 10^{-11})(8.3)(8.3)}{(0.165^2)} = \boxed{1.6878 \times 10^{-7} N}[/tex]