If your mass is 63.7 kg, and you are standing 7.5 m away from a boulder with
a mass of 9,750.6 kg, what is the gravitational force between you and the
boulder? Newton's law of gravitation is F
Gm m₂. The gravitational
=
gravity
constant G is 6.67 x 10-11 N-m²/kg².

A. 1.10 x 104 N

B. 7.37 x 10-7 N

C. 9.82 x 10-8 N

D. 5.52 x 10-6 N

Please help me!

Answer:

3 meters

Explanation:

Velocity = displacement/time

Displacement=velocity×time

As, time from 7 to 8 is 1 sec. And velocity increases from 0 to 3 m/s

So, Displacement = 3×1

=3m

Please give me brainlist.

The beta decay equation for the transmutation of a radioactive isotope of Rutherfordium has been explained above will be,[tex]\rm Re_{104}^{287} + \beta_0^{-1} \rightarrow Re_{104}^{286}[/tex]  

The reduction in the number of radionuclides per unit time is the rate of decay.

The beta decay equation for the transmutation of a radioactive isotope of Rutherfordium has 104 protons and 183 neutrons.

Atomic weight = 104+183 = 287

Atomic number  = 104

The beta decay equation is;

[tex]\rm Re_{104}^{287} + \beta_0^{-1} \rightarrow Re_{104}^{286}[/tex]

Hence the beta decay equation for the transmutation of a radioactive isotope of Rutherfordium has been explained above.

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.Internal energy is the total potential and kinetic energies in a substance, and thermal energy is the part of internal energy that can be transferred to another substance. Thus, option "C" is correct.

Thermal energy, is internal energy present in a system in a form of thermodynamic equilibrium probity by its temperature.

Thermal energy cannot be transformed to useful work as easily as the energy of systems that are not in conditions of thermodynamic equilibrium.

Thus, option "C" is correct

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Answer:

490N

Explanation:

W=m×g

W=50×9.8=490N

Answer:

electrons can be knocked loose from one object and picked up by the other. The object that gains electrons becomes negatively charged, while the object that loses electrons becomes positively charged.

Answer:

The food supply chain comprises all the stages that food products go through, from production to consumption

Explanation:

The difference in height between the ground floor and the third floor is

The pressure measured by the pressure gauge is called the gauge pressure.

Given is the the pressure in a water pipe in the ground floor of a building is 4×10⁵ Pa and three floors up is 2×10⁵ Pa. Density of water ρ = 1×10³ kg/m³​

From the Bernoulli's theorem,

ΔPg = ρgΔh

( 4×10⁵ -  2×10⁵) = 1000 x 9.81 x Δh

Δh = 20.4 m

Thus, the difference in height is 20.4 m

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The mercury thermometer operates on the principle of dilation.

Like all liquids, mercury expands as it is heated, so it moves along the thermometer tube, determining the temperature. Its expansion rate is calibrated on the glass scale, expansion is linear and can be accurately calibrated.

Mercury allows it to be used in a thermometer by its liquid expansion fast enough to measure something so that it still maintains an accurate measurement.

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Answer:

During nuclear fission, a neutron collides with a uranium atom and splits it, releasing a large amount of energy in the form of heat and radiation. More neutrons are also released when a uranium atom splits. These neutrons continue to collide with other uranium atoms, and the process repeats itself over and over again.

Explanation:

In nuclear fission the nucleus of an atom breaks up into two lighter nuclei. The process may take place spontaneously in some cases or may be induced by the excitation of the nucleus with a variety of particles (e.g., neutrons, protons, deuterons, or alpha particles) or with electromagnetic radiation in the form of gamma rays. In the fission process, a large quantity of energy is released, radioactive products are formed, and several neutrons are emitted. These neutrons can induce fission in a nearby nucleus of fissionable material and release more neutrons that can repeat the sequence, causing a chain reaction in which a large number of nuclei undergo fission and an enormous amount of energy is released. If controlled in a nuclear reactor, such a chain reaction can provide power for society’s benefit. If uncontrolled, as in the case of the so-called atomic bomb, it can lead to an explosion of awesome destructive force.

Answer:

In nuclear fission, atoms are split apart, which releases energy. All nuclear power plants use nuclear fission, and most nuclear power plants use uranium atoms. During nuclear fission, a neutron collides with a uranium atom and splits it, releasing a large amount of energy in the form of heat and radiation.

Explanation:

Hope this helps .

Good luck ✅.

In permanent waving, the size of the curl should be determined based on the size of the rod.

Permanent waving can be defined as a hairstyle that is typically made by setting a person's hair in waves or curls while treating it with chemical solutions such as thio, so as to make it last for a long period of time.

In permanent waving, the size of the curl should be determined based on the size of the rod that would be used for the hairstyle.

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Answer:

1/2

Explanation:

Europa = 3.5 days

Ganymede = 7.1 days

E/U = 3.5 / 7.1 ~~   1/2

Momentum is the rate of increase in speed or decrease in speed after application of force

The formula is given by

p is momentum

m is mass

v is velocity

The interior part of Jupiter and Saturn are different from each other due to difference of core and magnetic field.

The interiors of Jupiter and Saturn differ from one another because Jupiter has a larger metallic hydrogen core as compared to Saturn. It has stronger magnetic field as compared to Saturn.

So we can conclude that the interior part of Jupiter and Saturn are different from each other due to difference of core and magnetic field.

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Answer:

B

Explanation:

That is solar energy and the sun will be releasing energy constantly for the rest of its life, meaning renewable

If an object is neutrally buoyant (does not sink or float) in fresh water, the same object placed into salt water would float.

Buoyancy is the force through your fluids or total or submerged bodies. Also known as Archimedes' theorem. The fluid of the direction on the body produces a resultant force but with the direction of the weight, with the opposite direction, upwards.

In this case, we have salt water that is denser, allowing almost no objects to sink, so the buoyant force is greater that acts on the object.

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The statement that best describes Keisha errors is an object in either state of equilibrium must have no net force acting on it.

An object is said to be on a dynamic equilibrium when it moves at a constant speed, and all the forces on the object are balanced.

An object is also said to be on static equilibrium when it is unable to move because all the forces which act on it compensate for one another.

Therefore, the statement that best describes Keisha errors is an object in either state of equilibrium must have no net force acting on it.

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Answer:

B. Use oxygen to convert a fuel to heat and light energy.

What is combustion?

Combustion is a chemical process in which a substance reacts rapidly with oxygen and gives off heat. The original substance is called the fuel, and the source of oxygen is called the oxidizer.

The fuel can be a solid, liquid, or gas, although for airplane propulsion the fuel is usually a liquid.

For example, charcoal is combining with oxygen.

Combustion is commonly called burning, and the substance that burns is usually referred to as fuel.

To summarize,

For combustion to occur three things must be present:

As a result of combustion, exhausts are created and heat is released. You can control or stop the combustion process by controlling the amount of the fuel available, the amount of oxygen available, or the source of heat.

Therefore,

Combustion is when you use oxygen to convert a fuel to heat and light energy.

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Communications: Laura develops programs that flag suspicious network activity.

Communication involves the transfer of information from one person (sender) to another (recipient), especially through the use of semiotics, symbols, signs and network devices.

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Answer:

Moving electrons

Explanation:

The magnetic force is a force that is perpendicular to the direction of a moving charge. When two charges are not moving, the electrostatic force is along the line joining them (or the relative spacing). The effects of the static (Coulomb) force change direction due to the finite speed c, giving birth to a 'component' normal to the direction of the relative motion of the two charges (very much like the rain changing direction when you run or drive). When the speed of light c is reached, all electrostatic force becomes magnetic. When the relative separation distance is equal to zero, all forces become electrostatic. This is akin to linear acceleration (and the forces associated with it) shifting direction from being along the motion to normal to the motion as the route becomes totally round, giving birth to centrifugal forces. The magnetic force may be calculated in its general and relativistic forms using just the delayed potential form of the static Coulomb force. R3tarded potential Whereas two non-moving electrons repel electrostatically, two moving electrons can either repel or attract magnetically depending on their motion direction. When the speed of two electrons approaches c, they will generally attract with minimal likelihood of repulsion. It is also stated here that for some combinations of relative velocity and separation distances, the repulsion force can equate the attraction force, resulting in an asymptotic freedom condition in which the electrons are free from these two opposing forces. The electron possesses an inherent magnetic field, which may be mathematically represented as the outcome of a moving charge. The value and radius of the motion (the loop area) to form the magnetic dipole moment p=i a = (e v) an are not known as separate values, but only as a product p(the magnetic dipole moment), where e,v,a are the electron charge, speed, and motion loop area, respectively. The total of the magnetic field's effects equals zero for two electrons at rest with opposing polarity, known as paired electrons. This state is stable in matter because the total energy is lower. The magnetic field of a permanent magnet is the consequence of the chemical composition locking all of the lone electrons in a permanent magnetic material in their place. In a typical magnetic material, such as iron, such electrons only unify their pole orientation due to the action of an applied magnetic field. That is why adding an iron core to a coil produces a larger magnetic field. In diamagnetic materials, such alignment occurs (also governed by the chemical composition), resulting in repulsion and levitation rather than typical attraction. The velocity of electrons in wire currents is very modest, as is the generated magnetic force, because the phenomena is of second order (depends on the change of the separation distance rather than the distance itself as in the electrostatic case). However, due to the massive number of electrons involved (Avogadro number size), the magnetic force can become quite strong. The impact is amplified if you use many loops. This is used to power a large engine, for example. It is important to note that gravity is far less than magnetism, yet it may be extremely big owing to the number of particles involved—especially because gravity is always naturally orientated for attraction alone, and there is no cancellation of the gravity field by altering orientation.

The smallest time interval in which the magnetic field can be turned on or off to induced the emf is 47.5 s.

The emf induced in the coil is calculated as follows;

emf = dФ/dt

where;

0.12 = 5.7/dt

dt = 5.7/0.12

dt = 47.5 s

Thus, the smallest time interval in which the magnetic field can be turned on or off to induced the emf is 47.5 s.

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Answer:

Without it, we could not survive on Earth. Earth orbits the sun due to the gravity of the sun, which maintains us at a convenient distance from it to enjoy the sun's warmth and light. It keeps the air we need to breathe and our atmosphere in place. Our planet is held together by gravity.

Modern observations have shown that the geometry of the universe is flat and the universe mist be infinite.

Geometry refer to a branch of mathematics that encapsulates measurements of lines, shapes, dimensions, points and shapes.

Therefore, Modern observations have shown that the geometry of the universe is flat and the universe mist be infinite.

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Answer:

g=9.64m/s^2.

Explanation:

Gravitational field strength (in other words, gravitational acceleration) is given as follows:g=GMR2g=R2GM​where G=6.674×10−11m3kg⋅s2G=6.674×10−11kg⋅s2m3​ is the gravitational constant, M=5.972×1024kgM=5.972×1024kg is the mass of the Earth, and R=6.371×106m+0.06×106m=6.431×106mR=6.371×106m+0.06×106m=6.431×106m is the distance from the center of the Earth to the required point above the surface (radius plus 60 km).

G = 9.4 m/s²

Gravitational acceleration (symbolized g) is an expression used in physics to indicate the intensity of a gravitational field.

It is expressed in meters per second squared (m/s²).

At the surface of the earth, 1 g is about 9.8 m/s 2 .

According to the question,

Gravitational field strength is given as follows:

[tex]g = \dfrac{GM}{R^2}[/tex]

​Where[tex]G = 6.674\times 10^{-11}\dfrac{m^3}{kg\cdot s^2}[/tex]    is the gravitational constant,

[tex]M = 5.972\times 10^{24}kg[/tex] is the mass of the Earth,

and [tex]R = 6.371\times 10^{6}m + 0.06\times 10^{6}m = 6.431\times 10^{6}m[/tex]

Here, m is the distance from the center of the Earth to the required point above the surface (radius plus 60 km).

Thus, obtain:

[tex]g = \dfrac{6.674\times 10^{-11}\cdot 5.972\times 10^{24}}{(6.431\times 10^{6})^2} \approx 9.64m/s^2[/tex]

g ≈9.64m/s 2

Therefore ,

The gravitational field strength is g = [tex]9.64m/s^2[/tex]

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.

Answer:

Coolant absorbs thermal energy

Explanation:

Since the coolant is used to refrigerate the engine, it have to absorb the thermal energy

Answer:

the answer is C

Explanation:

i did this

Answer:

your answer would 50 m/s I do believe

The correct answer for the speed of the ball upon resting to it's starting point is [tex]50[/tex] m/s.

Given:

Initial speed: [tex]u = 50[/tex] m/s

To calculate the speed upon resting position, Calculate the time requires to reach starting position:

Time required to reach starting point  = 2 * (Time require to reach the maximum height)

Time required to reach the maximum height:

[tex]v = u+(-a )t[/tex]

Final velocity([tex]v[/tex]) is  [tex]0[/tex] m/s.

Negative sign indicates negative acceleration:

[tex]t= \dfrac{50}{9.8}\\\\ = 5.10[/tex]seconds

Time for start point  = [tex]2 * 5.8[/tex]

[tex]=10.6[/tex] seconds

From equation of motion:

[tex]v= u+at[/tex]

[tex]= 50 -9.8* 10.2[/tex]

[tex]= -50.2[/tex] m/s

Negative sign indicates downward direction.

Speed when ball return is  is [tex]50[/tex] m/s.

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Answer:

I think the answer is C.

Explanation:

A primary source is a first hand account of an event while a secondary source is a retelling or second hand account meaning as many details will be prevalent.

1. Coulomb's Law

Coulomb's law states that the force of a charged object on another charged object is directly proportional to the product of their charge(s) and inversely proportional to the square of the distance between them.

[tex]F_{elec}=k\frac{|q_1||q2|}{r^2}[/tex]

k is a constant.

2. The Force Would Decrease.

Coulomb's law predicts the electric force between two charged objects in a medium.

[tex]F=\frac{1}{4\pi\in_0 } \frac{|q_1q_2|}{r^2}[/tex]

where K is the medium's dielectric constant.

Vacuum: [tex]k=1[/tex]

Plastic: [tex]k > 1[/tex]

Therefore, the force between the two balls will decrease when the plastic sheet is inserted.

3. The Junction Rule states that the sum of magnitudes of the currents directed into a junction equals the sum of the magnitudes of the currents directed out of the current.

4. A Toroid is a doughnut shaped object whose surface is a torus. It annular shape is generated by revolving a circle around an axis external to the circle. Some example uses are RF chokes which is an inductor to have a high impedance to RF current and low impedance to DC current. Another use is variable-frequency oscillator (VFO). The frequency is set by a tuned circuit using capacitors and inductors. The frequency can be changed by adjusting the components in the tuned circuit. Just one last example is in mixers. These are used in transformers for Diode Ring Mixers. Which result in being ready, built, and homebrew.

Answer:

As the mass of the central star increases, the distance to the habitable zone increases and the size (width) of the habitable zone increases.

A star is a large luminous object found in space which produces heat and light energy as well as electromagnetic radiation.

The habitable zone of a star is the zone or area where liquid water can be found.

The distance habitable zone of a star increases with increase in mass of the star.

Therefore, as the mass of the central star increases, the distance to the habitable zone increases and the size (width) of the habitable zone increases.

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