to melt solidified agarose in a bottle in the microwave, heat it:

Answer:

An “international employee” is defined as an employee of Stanford University whose work site is located.

Explanation:

To determine the direction of the magnetic force on a wire due to the magnet, you need to use the right-hand rule.

Hold your right hand with your thumb pointing in the direction of the current in the wire.

Then, curl your fingers around the wire in the direction of the magnetic field lines (from north to south).

The direction your fingers point is the direction of the magnetic force on the wire.

If the current is flowing downward in the wire and the magnetic field is pointing into the page, then the magnetic force on the wire would be to the left.

Conversely, if the current is flowing upward in the wire and the magnetic field is pointing into the page, then the magnetic force on the wire would be to the right.

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Answer:

That is related to the fact that our numbering system - the decimal system - is based on powers of 10.

Explanation:

Answer:

A resistor of 160 ohms should be used to replace the current resistor

Explanation:

Applying,

Ohm's Law

V = IR................... Equation 1

Where V = Voltage of the battery, I = current, R = Resistance

From the question,

Given: I = 0.2 A, R = 120 ohms.

Substitute these values into equation 1

V = 0.2×120

V = 24 V

IF a current of 0.15 A is required,

make R the subject of equation 1

R = V/I............... Equation 2

Given: V = 24 V, I = 0.15 A

Substitute these values into equation 2

R = 24/0.15

R = 160 ohms.

Hence a resistor of 160 ohms should be used to replace the current resistor

Answer:

a what

well it wouldn't matter because it's not counted a planet anyway

Explanation:

Answer:

Scalar

Explanation:

A physical quantity that is completely described by its magnitude; examples of scalars are volume, density, speed, energy, mass, and time. Other quantities, such as force and velocity, have both magnitude and direction and are called vectors.

Mass and volume are called physical quantities because they can be measured by using physical devices i.e. mass is measured by using beam balance and volume is measured by using metre scale .

lan can decrease the magnetic force on the washers by increasing the distance between the magnet and the pile of metal washers.

A material or object that creates a magnetic field is called a magnet.

The most noteworthy characteristic of a magnet, a force that pulls on other ferromagnetic elements like iron, steel, nickel, cobalt, etc., as well as the ability to attract or repel other magnets, is caused by this invisible magnetic field.

The strength of the magnetic force produced by a magnet increases when the distance between the magnet and an object experiencing the magnetic force is reduced.

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The minimum objective lens diameter required to just resolve these objects if their wavelength is 656 nm is 0.5 m (approximately).

When an object is observed through a telescope, its angular separation from another nearby object is determined by its wavelength and the diameter of the objective lens of the telescope. Formula Used:

θ = λ/D

Where:

θ = angular resolution

λ = wavelength

D = diameter of the objective lens of the telescope

Given that the distance between the two small lights is 2.0 cm, their distance from the telescope is 500 m and their wavelength is 656 nm. Thus, angular separation, θ = λ/D

Minimum resolution required, θ = 2.44 x 10⁻⁴ rad (given)

Also, the distance between two small lights, D = 500 m

Therefore, λ = θ × Dλ = 2.44 × 10⁻⁴ × 500 = 0.122 nm (approximately)

Now, to resolve these two small lights, the objective lens diameter, D is given by:

D = λ/θ = 0.122 × 10⁻⁹/2.44 × 10⁻⁴ = 0.5 m (approximately)

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The speed of the boxcar after 9.0 seconds is approximately 3.1 m/s. Therefore, the correct answer is D. 3.1 m/s.

The force acting on the boxcar down the grade is given by the component of the weight of the boxcar along the grade, which is equal to (125 tons)(2000 kg/ton)(9.8 m/s^2)(sin(2.0°)) = 4260 N. Since there is no friction, this force is the only force acting on the boxcar and it will accelerate down the grade.

We need to find the speed of a 125-ton boxcar after 9.0 seconds on a frictionless 2.0° grade.

First, let's convert the mass of the boxcar to kilograms: 1 ton = 1000 kg, so 125 tons = 125,000 kg.

Next, we need to find the acceleration of the boxcar down the slope. The gravitational force acting on the boxcar is F = m * g, where m is the mass and g is the acceleration due to gravity (approximately 9.81 m/s²).

However, since the slope is at an angle, we need to consider only the component of the gravitational force acting along the slope.

To do this, we multiply the gravitational force by the sine of the angle (2.0°):
a = g * sin(2.0°)

Now, we can find the acceleration:
a ≈ 9.81 m/s² * sin(2.0°) ≈ 0.342 m/s²

Next, we'll use the equation v = a * t, where v is the final velocity, a is the acceleration, and t is the time (9.0 seconds) to find the boxcar's speed:
v = 0.342 m/s² * 9.0 s ≈ 3.078 m/s

Rounded to one decimal place, the speed of the boxcar after 9.0 seconds is approximately 3.1 m/s. Therefore, the correct answer is D. 3.1 m/s.

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Answer:

the heat is growing the particles bigger

Explanation:

Answer:

I surmise 5 N

Explanation:

as the formula seems to be thrust(?) minus friction.

Answer:

observe question hypothesize test your theory analyze your data and report your results.

Explanation:

you have to do it in that order.

Main Answer(final answer)- work done by julie is zero

Supporting answer- The work done by a force is defined as the product of the force's component in the direction of displacement and the magnitude of displacement. Formula. Work can be calculated by multiplying Force by Distance in the force's direction, as shown below. W = F × d.

Body of solution- as Julie walking at constant speed, net work done by her is zero.

Forces acting on suitcase are

1. Gravitational force

2. Force applied by Julie

As gravitational force is perpendicular to displacement, work done by gravity is zero

As work done by Julie and gravity are both zero

final answer -Hence work done by julie is zero

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The mass of acetic acid would be 9.435 grams, in 185 mL of vinegar if Vinegar contains 5.00% acetic acid (by mass) and its density is 1.02g / mL

It can be defined as the mass of any object or body per unit volume of the particular object or body. Generally, it is expressed as in gram per cm³ or kilogram per meter³.

Generally, the density of any substance is expressed by the greek symbol ρ. The density is the reciprocal of the specific volume of any substance.

.

By using the above formula for density

ρ = mass / volume

As given in the problem Vinegar contains 5.00% acetic acid (by mass) and its density is 1.02g / mL

The total mass of the vinegar

mass= ρ×volume

       =1.02×185

       =188.7

As given Vinegar contains 5.00% acetic acid (by mass)

the mass of acetic acid = 5×188.7/100

                                       =9.435 gram

Thus, the mass of acetic acid comes out to be 9.435 grams

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Answer:

a

Explanation:

because there both in the solar system

There are billions of galaxies in the universe and each contains trillions of stars which are different in size, distance from the earth, brightness etc.When we scientifically investigate about this we can obtain the stars of similarity to sun in brightness and size.

Galaxies are a group of stars, dust and dark matter joined together by the force of gravitation. Three trillions of stars in each galaxies. Some stars forms a group of certain  size and shape and number also they are called constellations.

Sun is the closest star to earth. Thus sunlight is the major source of energy in earth. Sunlight reaches the earth surface within a time of 8 minute and 6 seconds.

The star which nearest to sun is named proximacentory which far from the earth and we can see it as spot of light in the sky. There are many more stars which are giants are more brighter than sun.

The brightness and luminosity is determined based on the distance from the earth. Which can be calculated in terms of light years. Each star has an age and length of life. After that the star may die still their light energy can be seen in sky because their light takes more years to reach here.

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Answer:

B is the answer a force is a push or pull

(d) 50N/C

The magnitude of the electric field at point 'P' is 50N/C.

It is derived from the basic concepts of Electrostatics. Coulomb's Law is the basis of relations in Electrostatics. It resembles Newton's Law of Gravitation.

Using the relation between Electric force, charge, and Electric field:

                                          F = qE

                                     200 = (4)E

                                          E = 50N/C  

It is widely used in the calculation of Electric Force and Electric Field. The S.I. Unit of the Electric Force is Newton. The S.I. Unit of the Electric Field is N/C. The S.I. Unit of charge is Coulomb.

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Answer:

a)

Weight in Air = 0.3N

Weight in Water = 0.25N

Weight in Liquid = 0.24N.

Upthrust /Buoyant Force = Weight in Air – Weight in Fluid(Water in this case)

= 0.3 – 0.25

= 0.5N.

b) R.D of Body = Density of Body/Density of Standard Fluid(Water).

There's a Derived Formula for RD.

I'm gonna Apply it here.

Ask me for the derivation in the Comment section if you need it.

RD = α/ρ = (Weight in Air) / (Upthrust Force)

Where

α = density of the Body(or reference substance)

ρ = density of standard fluid (water)

= 0.3/0.05 = 6.

c) RD of Liquid = (Density of Liquid) /(Density of standard Fluid(water)

Or we just go by that formula

RD of Liquid = Weight in Air/Upthrust(In Liquid)

We'll be using the Upthrust in that Liquid now.

= 0.3 – 0.24 = 0.06

RD = 0.3/0.06 = 5.

because the in falling matter has some angular momentum that is why matter falling towards a white dwarf, neutron star, or black hole in a binary system form an accretion disk.

The mass falls toward the central body, causing conservation of angular momentum to enhance the orbital speed. As a result, a rotating disc is created by the falling materials.

what is Angular momentum?

Angular momentum is any rotating object's characteristic determined by moment of inertia times angular velocity. It is a characteristic of rotating bodies determined by the sum of their moment of inertia and angular velocity.

The mass, motion, and distance of an object's mass from the centre of rotation all affect angular momentum, also known as spin.

Therefore, because the in falling matter has some angular momentum that is why matter falling towards a white dwarf, neutron star, or black hole in a binary system form an accretion disk.

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Answer:

The Western Hemisphere contained significantly higher amounts of shock-fractured quartz. This led Walter and Luis Alvarez to hypothesize that the asteroid impact site was in the Western Hemisphere.

Explanation:

Given:

Due to the Doppler effect, when moving away from the source of a sound, _______

Required: To fill in the blank

Explanation:

The sound should get more quiet as the sound waves die out with increasing distance.

Final Answer: Due to the Doppler effect, when moving away from the source of a sound, the sound should get more quiet.

The B figure has got more gravitational potential energy because gravity can draw it up straight rather than in a fashion (A) that would leave it with less room to travel.

The work (energy exchanged) per mass that would be required to transport an object to a point from a set reference location is the gravitational attraction at that location. It mimics the electric potential, with mass acting as the charge. There is a negative potential at any finite distance because the benchmark location, where the potential is zero, is conventionally indefinitely far from any mass.

The subject of potential theory is based on the gravitational potential, sometimes referred to as the Newtonian potential in mathematics. The electrostatic and popular throughout the world fields produced by ellipsoidal bodies that are uniformly charged or polarized can also be resolved using this method.

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Answer:Rate > 9 miles per hour

Answer:

the reaserch I did says that d is the correct answer

Answer: A negatively-charged ion always has more electrons than protons

Explanation:

First, we know that the elementary negative charge is the electron, while the positive one is the proton. Such that both have the same charge in magnitude, but a different sign. Such that if we have the same number of electrons and protons in an atom, the charge of this atom will be neutral.

And an ion is an atom with a different number of electrons and protons, so the charge of the atom is not neutral.

Then if we have a negatively-charged ion, the charge of this atom is negative. Then we must have a larger number of electrons (the negative ones) than protons (the positive ones)

Then the correct option is:

A negatively-charged ion always has more electrons than protons

Answer: d is correct

Explanation:

i did the quiz

Answer:

The weight of the box is 22.38 N.

Explanation:

The weight (W) of the mass is given by:

\( W = mg \)

Where:            

m: is the mass of the box = 6.0 kg

\(g_{m}\): is the acceleration due to gravity of mars

Since the acceleration due to the gravity of mars is 0.38 times that on Earth we have:

\(g_{m} = 0.38g_{E} = 0.38*9.81 m/s^{2} = 3.73 m/s^{2} \)

Hence, the weight of the mass is:

\( W = mg = 6.0 kg*3.73 m/s^{2} = 22.38 N \)

Therefore, the weight of the box is 22.38 N.

I hope it helps you!      

Answer:

it is 59 degrees Fahrenheit

I'm pretty sure it's 59 °F