read no.4

which newtons law is this?

1,2 and 3 only

Answer:

Heavy weight

Explanation:

It's a muscle car, its weight its 3,825 lb, and it's classified as heavy for a car.

Answer:

Heavy Weight

Explanation:

A 2021 Mutsang GT could wrigh from 3,532 to 3,868 lbs. This would be considered a Heavy meadium to Heavy muscle car.

No where close to the boat of mopar  the challenger almost weighting up to 4,500lbs

Answer:

Explanation:

heat lost by water will be used to increase the temperature of  ice

heat gained by ice

= mass x specific heat  x rise in temperature

1 x 2090 x t

heat lost by water in cooling to 0° C

= mcΔt  where m is mass of water , s is specific heat of water and Δt is fall in temperature .

= 1 x 2 x 4186  

8372

heat lost = heat gained

1 x 2090 x t  = 8372

t = 4°C

There will be a rise of  4 degree in the temperature of ice.  

The increase in the temperature of the ice to bring the water to 0 °C is 4 ⁰C.

The given parameters;

Apply the principle of conservation of energy to determine the increase in the temperature of the ice to bring the water to 0 °C.

Heat absorbed by the ice = Heat lost by water

\(Q_{ice} = Q_{w}\\\\mc\Delta t_{ice} = mc \Delta t_{w}\\\\1 \times 2090 \times \Delta t = 1 \times 4186 \times (2-0)\\\\2090\Delta t = 8372\\\\\Delta t = \frac{8372}{2090} \\\\\Delta t = 4 \ ^0C\)

Thus, the increase in the temperature of the ice to bring the water to 0 °C is 4 ⁰C.

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Speed = distance / time

Part 1: 40 km at 80 km per goir = 0.50 hours

Part 2: 40 km at 40 km per hour = 1 hour

The time of the trip was 1.5 hours

Total distance was 40 + 40 = 80 ins.

Speed = distance / time = 80/1.5 = 53.33 km/he ( round answer as needed)

The methods to determine the specific charge of an electron are The J. J. Thomson Method and The Millikan Oil Drop Method.

The J. J. Thomson Method

In this method, an electric field is created between two parallel metal plates. Electrons are accelerated by this field from the negative plate to the positive plate. After that, they strike a fluorescent screen. When the electrons are shot through the electric field perpendicular to the magnetic field, they experience the Lorentz force, which is given by the formula: $F= evB$ $F= evB$

When a magnetic field is applied at right angles to an electron beam, it bends the path of the beam into a circular path. The radius of the path of an electron beam in a magnetic field is determined by the relationship:r = mv/eB. As a result, the specific charge of an electron may be calculated from the expression: $e/m = 2V / B^2r^2$

The Millikan Oil Drop Method

This is another technique for determining the specific charge of an electron. The oil drop experiment was first done by Robert A. Millikan in 1909. He did this experiment by suspending charged droplets of oil in a uniform electric field between two parallel plates.

The fall of the oil droplets in the absence of an electric field was also noted. The fall velocity of the oil droplet was determined by measuring the time taken by the oil droplet to pass through a fixed distance between the plates in the absence of an electric field. By measuring the electric field strength, the voltage applied to the plates, and the fall velocity of the oil droplet, the specific charge of the electron was determined.

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The methods to determine the specific charge of an electron are :

In the J. J. Thomson Method, an  electric field is created between two parallel metal plates. Electrons are accelerated by this field from the negative plate to the positive plate. After that, they strike a fluorescent screen.

When the electrons are shot through the electric field perpendicular to the magnetic field, they experience the Lorentz force.

The Millikan Oil Drop Method is an experiment by which is created by suspending charged droplets of oil in a uniform electric field between two parallel plates.

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1. The substance equation for water is \(H_2O\).

2. The compound name for table salt is sodium chloride \((NaCl)\).

3. The synthetic equation for carbon dioxide is \(CO_2\).

4. The substance name for baking soft drink is sodium bicarbonate \((NaHCO_3)\).

5.  The substance recipe for methane is \(CH_4\).

6. The compound name for vinegar is acidic corrosive \((CH_3COOH)\)

7.  The compound equation for smelling salts is \(NH_3\).

8. The compound name for blanch is sodium hypochlorite \((NaClO)\).

9.  The synthetic equation for hydrogen peroxide is \(H_2O_2\).

10. The synthetic name for rust is iron oxide \((Fe_2O_3)\).

11.  The compound recipe for sodium hydroxide is \(NaOH\).

12. The substance name for lye is sodium hydroxide \((NaOH)\).

13. The synthetic equation for sulfuric corrosive is \(H_2SO_4\).

14. The compound name for gypsum is calcium sulfate dihydrate \((CaSO_4.2H_2O)\).

15. The substance equation for table sugar is \(C_1_2H_2_2O_1_1\).

16. The synthetic name for anti-inflamatory medicine is acetylsalicylic corrosive \((C_9H_8O_4)\).

17. The compound recipe for calcium carbonate is \(CaCO_3\).

18. The substance name for baking powder is a combination of sodium bicarbonate \((NaHCO_3)\) and an acidic fixing like cream of tartar \((KC_4H_5O_6)\).

19. The synthetic equation for sodium chloride is \(NaCl\).

20. The substance name for hydrogen gas is \(H_2\).

The questions are:

1. What is the synthetic recipe for water?

2. What is the substance name for table salt?

3. What is the compound equation for carbon dioxide?

4. What is the synthetic name for baking pop?

5. What is the substance equation for methane?

6. What is the synthetic name for vinegar?

7. What is the substance equation for alkali?

8. What is the substance name for blanch?

9. What is the compound recipe for hydrogen peroxide?

10. What is the synthetic name for rust?

11. What is the synthetic equation for sodium hydroxide?

12. What is the synthetic name for lye?

13. What is the substance recipe for sulfuric corrosive?

14. What is the substance name for gypsum?

15. What is the synthetic recipe for table sugar?

16. What is the substance name for anti-inflamatory medicine?

17. What is the synthetic equation for calcium carbonate?

18. What is the synthetic name for baking powder?

19. What is the substance equation for sodium chloride?

20. What is the substance name for hydrogen gas?

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Answer:

W = 1014 J = 1.014 KJ

Explanation:

As, Sam has to stop the boats in the log ride. Therefore, the work Sam needs to do, in order to stop a boat must be equal to the kinetic energy of the boat:

Work Done by Sam = Kinetic Energy of the Boat

W = K.E

W = (1/2)mv²

where,

m = mass of boat and its rider = 1200 kg

v = speed of the boat = 1.3 m/s

Therefore,

W = (1/2)(1200 kg)(1.3 m/s)²

W = 1014 J = 1.014 KJ

Answer:

2.63 microfarads

Explanation:

C = Q/V   =  2.5 x 10^-3 C / 950 V = 2.63 microfarads

Answer:

90 ft/s is what i put. Let me know if its wrong

If we replace the incandescent bulb with a voltage meter and return the loop to its original configuration, then moving the bar magnet back and forth through the loop will induce an electrical current in the loop, as described by Faraday's law of electromagnetic induction.

A magnet is a material or object that produces a magnetic field, which is a force that can attract or repel certain other materials, such as iron or steel. The magnetic field is created by the motion of electric charges within the magnet, which align in such a way that they produce a net magnetic field. Magnets can be made from a variety of materials, including iron, cobalt, nickel, and certain alloys. They come in many different shapes and sizes, including bars, discs, horseshoes, and rings.

Here,

The type of current that is generated depends on the direction and rate of the magnet's motion. If the magnet is moved back and forth with a constant speed and in a straight line, the current induced in the loop will be an alternating current (AC), because the direction of the current will reverse every time the magnet changes direction. This can be observed by the voltage meter reading a voltage that periodically changes in direction.

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Answer:

B.

Explanation:

brainlist

Answer:

Explanation:

The Spanish flu pandemic of 1918, the deadliest in history, infected an estimated 500 million people worldwide about one-third of the planet’s population and killed an estimated 20 million to 50 million victims, including some 675,000 Americans. The 1918 flu was first observed in Europe, the United States and parts of Asia before swiftly spreading around the world. At the time, there were no effective drugs or vaccines to treat this killer flu strain. Citizens were ordered to wear masks, schools, theaters and businesses were shuttered and bodies piled up in makeshift morgues.

Does this sound familiar?

Its the same thing but with a different name called the Corona virus pandemic the same thing happened in 1918 and now it is happening again in 2020 , but in in 2020 there are far less people infected by the Corona virus as compared to the Spanish flu the numbers approximate around 70 million infected and deaths are around 2 million.

The rapid spread of Spanish flu in the fall of 1918 was at least partially to blame on public health officials unwilling to impose quarantines during wartime. The public health response to the crisis in the United States was further hampered by a severe nursing shortage as thousands of nurses had been deployed to military camps and the front lines. But one of the chief reasons that the Spanish flu claimed so many lives in 1918 was that science simply didn’t have the tools to develop a vaccine for the virus. Microscopes couldn’t even see something as incredibly small as a virus until the 1930s.

That is why the Spanish Flu claimed so many lives in 1918 and the Corona Virus didn't claim that many.

The Corona Virus patients with respect to Spanish Flu patients exponentially decreased because in 2020 we had the specific tools to fight the virus and since mankind was aware when the world engrossed into the pandemic 100 years before the new the risks that it could impose on the world , People started to Quarantine themselves, more nurses/doctors are available rather than in the era of the 19th century.

Mathematically we would say that the exponential growth would be:

\(y=ab^x\)

This is an exponential function, which means as you increase  x , y  increases exponentially, and where a is the initial value and b is the growth factor.

For example:

There are 100,000 cases of Coronavirus when the virus outbroke. If the number of cases doubles every week then how many cases would be there in 10 weeks?

So the solution would be

\(y=ab^x\\y=100000(2)^{10}\\y=102400000\)

Which means people infected with the virus would be approximate 102.5 million. But since this kind of pandemic already broke out in 1918 called the Spanish flu mankind was wise and controlled its growth factor (b) by Quarantining people , shutting down businesses, schools  and implying them to work from home , closing off cafeteria's restaurants for dine in purposes and just allowing take away to reduce human contact, and since 1918 we have more doctors and nurses to treat the infected in 2020 we reduced the outbreak to 70 million in about 10 months other wise it could have been 100 million in just 2.5 months as we can see.

So guys stay indoors just go out if you REALLY need something, avoid meeting others , wear masks and gloves :)

Answer:

Its stored in there

Explanation:

And air has little mass

The interval of acceleration of the bus will be 2.19 seconds.

An object is considered to have been accelerated if its velocity changes. Depending on whether an object is moving faster, slower, or in a different direction, its velocity may change.

Examples of acceleration include a falling apple, the moon orbiting the earth, and a car that has stopped at a stop sign. These examples demonstrate how acceleration occurs whenever a moving object modifies its direction, speed, or both.

Acceleration is a vector quantity.

SI unit of acceleration is m/s.

According to the question, the given values are :

Acceleration, a=-4.1 m/s²

Initial velocity, u=9.0 m/s and,

Final velocity, v=0 m/s

By using Equation of motion, i.e.,

v=u+at

⇒0 m/s=9m/s+(-4.1 m/s²)(t)

⇒-9 m/s=-4.1 m/s²×t

t=(-9 m/s)/(-4.1 m/s²)

t= 2.19 seconds.

Hence, the time interval of acceleration of the bus will be 2.19 seconds.

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Answer:

B

Explanation:

Atoms are made by electrons, neutrons and protons

Answer:

A. there are distinct kinds of atoms

Explanation:

According to Dalton's atomic theory, the atom is indivisible. Thus, we know that B is incorrect. Additionally, C can't be correct because when Dalton was alive, the nucleus (the small, dense center) hadn't yet been discovered. Finally, D can't be correct either since Bohr's discoveries about electron orbits hadn't yet been made. Knowing that, it must be A!

Also, I just did the quiz, and it was A. Dalton believed that there are distinct kinds of atoms!

Answer:

An electrical component that can disconnect or connect the conducting path in an electrical circuit.

The speed of the ball as seen by a stationary observer in the street will be the sum of the speed of the ball relative to the bus and the speed of the bus relative to the observer.

From the viewpoint of a stationary observer on the street, the ball and the school bus are both moving forward at the same constant velocity. Therefore, the speed of the ball as seen by the observer in the street will be the sum of the speed of the ball relative to the bus and the speed of the bus relative to the observer.

Assuming the ball is thrown horizontally and neglecting any air resistance, the speed of the ball relative to the bus will be constant and equal to the speed at which the ball was thrown. However, since the bus is moving forward, the speed of the ball relative to the observer in the street will be the sum of the speed of the ball relative to the bus and the speed of the bus relative to the observer.

Suppose, if the bus is traveling at a speed of 20 km/h and the ball is thrown at a speed of 10 km/h relative to the bus, then the speed of the ball as seen by the observer in the street will be 30 km/h (20 mph + 10 km/h).  Therefore, the speed of the ball as seen by a stationary observer in the street will be the  of the relative speed of the ball relative to the bus and the speed of the bus relative to the observer.

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The momentum of the Van whose velocity and mass has been given would be =4.8×10⁴kgm/s

To calculate the momentum of a moving object, the formula that should be used is given below as follows:

p = MV

where;

M = mass = 1.5×10³kg

V = Velocity= 32 m/s

P = momentum = 32×1.5×10³ = 4.8×10⁴kgm/s

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Answer:

The magnetic field is 24.2 mT.

Explanation:

The magnetic field can be calculated with the following equation:

\( B = \frac{\mu_{0}iN}{L} \)

Where:

i: is the current = 5.57 A

N: is the number of turns = 5*850 turns (it is five close-packed)

L: is the length = 1.23 m

\(\mu_{0}\): is the permeability = 4π*10⁻⁷ T*m/A          

Hence, the magnetic field is:

\( B = \frac{4\pi \cdot 10^{-7} T*m/A*5.57 A*5*850}{1.23 m} = 0.0242 T = 24.2 mT \)

Therefore, the magnetic field is 24.2 mT.

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The theory of uniform accelerated motion states that the movement of an element is constant in the same acceleration conditions.

The theory of uniform accelerated motion is a scientific statement regarding the acceleration of an object in steady conditions.

This theory (uniform accelerated motion) is fundamentally applied in physic and astrophysics.

In conclusion, the theory of uniform accelerated motion states that the movement of an element is constant in the same acceleration conditions.

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The overall charge of the atom after an electron is added is -1.

An ion is an atom or molecule that has an unequal number of protons and electrons, resulting in a net electrical charge. Atoms are normally electrically neutral because the number of protons, which carry a positive charge, is equal to the number of electrons, which carry a negative charge. However, when an atom gains or loses one or more electrons, it becomes an ion with a net electrical charge.

When an atom loses one or more electrons, it becomes a positively charged ion, or cation, since the number of positively charged protons is greater than the number of negatively charged electrons. On the other hand, when an atom gains one or more electrons, it becomes a negatively charged ion, or anion, since the number of negatively charged electrons is greater than the number of positively charged protons.

An atom with four protons and four electrons is electrically neutral since the number of positively charged protons equals the number of negatively charged electrons. When an electron is added to the atom, the number of electrons becomes five, while the number of protons remains at four. This results in a net negative charge on the atom, since the extra electron carries a negative charge.

Therefore, the overall charge of the atom after an electron is added is -1.

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Continents have undergone major shifts around 12 times.

To calculate the number of times continents have gone through major shifts in the 4.6 billion year history of the Earth, we can divide the total time span by the average duration between shifts.

Total time span = 4.6 billion years

Average duration between shifts = 395 million years

To convert the total time span to years, we multiply 4.6 billion by 1 billion (1 billion = 1,000 million).

Total time span in years = 4.6 billion years × 1 billion = 4.6 × 10^9 years

Now we can calculate the number of shifts by dividing the total time span by the average duration between shifts:

Number of shifts = Total time span / Average duration between shifts

               = (4.6 × 10^9 years) / (395 million years)

               ≈ 11.65

Therefore, continents of our planet have gone through major shifts approximately 11.65 times in the 4.6 billion year history of the Earth. Since we cannot have a fraction of a shift, we can round the result to the nearest whole number. Thus, continents have undergone major shifts around 12 times.

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Answer:

The graph data expresses the data started high up and moved into a continuous reaction before slowly decreasing and hit a point, where it remained the same.

The rope is under about 411.8 N of stress at point 1, and around 532.6 N of tension at point 2.

         /|

       / |

T1  /  |   θ1

   /     |

  /   θ1|

 /        |

/_____|

\           |

 \          | θ2

  \        |

T2  \    |

         \ |

           \|

The forces in the x and y axes must balance since the hammock is at rest. Consequently, we may write:

ΣF_x = T1 cosθ1 - T2 cosθ2 = 0

ΣF_y = T1 sinθ1 + T2 sinθ2 - mg = 0

Let's change the equations such that we can solve for T1 and T2:

T1 = T2 cosθ2 / cosθ1

T2 = (m g) / (sinθ2 - sinθ1)

T1 = T2 cos(38°) / cos(16°) = 0.773 T2

T2 = (70 kg)(9.81 m/s^2) / (sin 38° - sin 16°) = 532.6 N

Therefore, we can find T1:

T1 = 0.773 T2 = 0.773(532.6 N) = 411.8 N

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\(\\ \sf\Rrightarrow Distance=Speed\times Time\)

\(\\ \sf\Rrightarrow Distance=12(3)\)

\(\\ \sf\Rrightarrow Distance=36km\)

Solution:

The block size = 16 words

Tag Block Offset

11 bits 5 bits 4 bits

The memory address 0DB63 will map to the 22nd block and 3 bytes of a block.

cache advantage is, when the cache block is made larger or bigger then, there are fewer misses. The disadvantage is that if the data is not used before the cache block is removed from the cache, then it is no longer useful.

After analyzing the question, the solution is:

As given The Cache of 32 blocks and the memory is word addressable:

The main memory size.

The block size.

The total number of blocks = main memory size/ block size:

Says it is 1 M words in size and it requires 20 bits. Now, from which 32 cache block requires 2^20, 20 bits, and block size means offset requires 2^4, 4 bits. Now the sizes of the bag, and, block and word fields are following:

Tag Block Offset

11 bits 5 bits 4 bits

The hexadecimal address value is 0DB63, its binary equivalent is

The tag = ( first 11 bits) = 0000 1101 101

block = ( next 5 bits ) = 10110

offset = ( next 4 bits ) = 0011

Therefore, the memory address 0DB63 will map to the 22nd block and 3 bytes of a block.

The main favored position or circumstance of the cache happens that, when the cache block is created best or considerably therefore, there happen hardly any misses. this takes place when the information in visible form in the block exists secondhand.

One of the loss exists that if the data exist not secondhand before the cache block exist detached from the cache, then it exist not any more valuable. in this place there exist an addition to the best miss punishment.

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According to the definition of calorimetry,  the mass of the coffee is 253.33 g.

Calorimetry is the measurement and calculation of the amounts of heat exchanged by a body or a system.

Sensible heat is defined as the amount of heat that a body absorbs or releases without any changes in its physical state (phase change).

so, the equation that allows to calculate heat exchanges is:

Q = c× m× ΔT

where:

Q is the heat exchanged by a body of mass m.

c is the specific heat substance.

ΔT is the temperature variation.

Mass of coffee

In this case, Given is :

Q= 190 calories

c= 1

m= ?

ΔT= 0.75 C

Replacing in the equation that allows to calculate heat exchanges is:

190 cal = 1 × m× 0.75 C

Solving:

m= 190 cal÷ (1 × 0.75 C)

m=253.33 g

Finally, the mass of the coffee is 253.33 g.

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The spring constant of the spring is 178.4 N/m.

In this problem, we are given a mass of 0.25 kg that is attached to a spring and set into vibration with a period of 0.22 s.

We can use the equation for the period of a mass-spring system, which relates the period of oscillation to the mass and spring constant, to calculate the spring constant.

We can use the equation for the period of a mass-spring system:

T = 2π√(m/k)

where T is the period, m is the mass, and k is the spring constant.

Rearranging this equation to solve for k, we get:

k = \((4\pi^2m) / T^2\)

Substituting the given values, we get:

k = \((4\pi^2 \times 0.25 \:kg) / (0.22 s)^2\)

k = 178.4 N/m

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Answer:

electrical

Explanation:

the TV needs electrical energy to power on

Answer:

electrical energy powers your TV, computer, microwave and toaster.