whats 46/50 as a percent?​

Answer:

The answer is Z

Explanation:

Explanation:

Given that,

Input force on a simple machine, F = 2 N

The output force on a simple machines, F' = 4 N

The ratio of the output force to the input force of any simple machines is called its mechanical advantage. Mathematically, it is given by :

[tex]m=\dfrac{F'}{F}[/tex]

Putting the value of F and F' in above equation. We get :

[tex]m=\dfrac{4}{2}[/tex]

m = 2

So, the mechanical advantage of the simple machines is 2. Hence, this is the required solution.

Answer:

Mechanical advantage, m = 2

Explanation:

Given that,

The input force on a simple machine, [tex]F_i=2\ N[/tex]

The output force on a simple machine, [tex]F_o=4\ N[/tex]

To find,

The mechanical advantage of the simple machine.

Solution,

The ratio of the output force to the input force of any simple machines is called its mechanical advantage. Its expression is given by the below formula :

[tex]m=\dfrac{F_o}{F_i}[/tex]

[tex]m=\dfrac{4}{2}[/tex]

m = 2

Therefore, the mechanical advantage of the simple machines is 2.

The efficiency of a machine increases as the temperature inside increases relative to the temperature outside.

Answer:

The correct answer is increases.

Explanation:

According to the second principle of thermodynamics, when two objects at different temperatures come into thermal contact with each other, thermal energy always flows from the hottest object to the coldest.

Therefore we deduce that if the inside temperature of the machine is higher than the outside temperature, the machine will have a higher efficiency.

Have a nice day!

(1.6 x 10⁻¹⁹ C) x (300 N/C) = 4.8 x 10⁻¹⁷ Newton

The force experienced by the electron is 4.8×10⁻¹⁷ N.

Electric Field: An electric field is a region or space, where an electric force can be experienced or felt.

The formula of electric force is

F = E×Q............... Equation 1

Where F = Electric force, E = Electric field, Q = Charge.

From the question,

Given: Q = 1.6×10⁻¹⁹ C, E = 300 N/C

Substitute these values into equation 1

F = (1.6×10⁻¹⁹)(300)

F =  4.8×10⁻¹⁷ N.

Hence, The force experienced by the electron is 4.8×10⁻¹⁷ N.

Learn more about electric Field here:  https://brainly.com/question/22735564  

All you have to do is get the culmative effect of the forces by predicting the direction in which each object will move. Just write down what you know and put down questions for your teacher.

the friction would cause the box to move slower

Courtney should carry out an acid-base titration, adding a known concentration of an acid or base to the unknown solution until neutrality is achieved, indicated by a colour change in an indicator or a pH measurement. Acids produce H3O+ or H+ ions, while bases produce OH- ions. The volume of known solution added to reach neutrality can help determine the nature and strength of the unknown solution.

For Courtney to determine whether an unknown chemical solution is an acid or a base, she should perform an acid-base titration. In this process, a solution of an acid or base with a known concentration, often referred to as the titrant, is slowly added to the solution with an unknown concentration, the analyte, until neutrality has been achieved. Indicator substances such as phenolphthalein, which changes colour based on pH, or a pH meter can be used to determine when this point of neutrality, called the equivalence point, has been reached.

For instance, if Courtney had a known concentration of sodium hydroxide (NaOH), a base, she would add this to the unknown solution until her phenolphthalein indicator changes colour, indicating all the acid in the solution had been neutralised. The amount of NaOH added helps determine whether the unknown solution was acidic, and to what degree.

It's important to remember that acids produce H3O+ or H+ ions in a solution, while bases produce OH- ions. This knowledge can also aid in further understanding of the titration results.

https://brainly.com/question/40172894

#SPJ12

The centripetal acceleration is related to the tangential velocity according to the equation below.  

a=v²/r where v is the tangential velocity and r the radius of the circular path.

thus v²=a×r

From the question provided, r=6m acceleration= 3.6m/s²

Therefore using these values in the formula v²=a×r

v=√(3.6×6)

v=√21.6

v=4.65

The answer is A. 4.65 m/s

Answer:

[tex]4.1\cdot 10^8 N[/tex]

Explanation:

First of all, we need to find the pressure exerted on the sphere, which is given by:

[tex]p=p_0 + \rho g h[/tex]

where

[tex]p_0 =1.01\cdot 10^5 Pa[/tex] is the atmospheric pressure

[tex]\rho = 1000 kg/m^3[/tex] is the water density

[tex]g=9.8 m/s^2[/tex] is the gravitational acceleration

[tex]h=11,000 m[/tex] is the depth

Substituting,

[tex]p=1.01\cdot 10^5 Pa + (1000 kg/m^3)(9.8 m/s^2)(11,000 m)=1.08\cdot 10^8 Pa[/tex]

The radius of the sphere is r = d/2= 1.1 m/2= 0.55 m

So the total area of the sphere is

[tex]A=4 \pi r^2 = 4 \pi (0.55 m)^2=3.8 m^2[/tex]

And so, the inward force exerted on it is

[tex]F=pA=(1.08\cdot 10^8 Pa)(3.8 m^2)=4.1\cdot 10^8 N[/tex]

The total inward force is about 4.1 × 10⁸ N

[tex]\texttt{ }[/tex]

Let's recall Hydrostatic Pressure formula as follows:

[tex]\boxed{ P = \rho g h}[/tex]

where:

P = hydrosatic pressure ( Pa )

ρ = density of  fluid ( kg/m³ )

g = gravitational acceleration ( m/s² )

h = height of a column of liquid ( m )

Let us now tackle the problem!

[tex]\texttt{ }[/tex]

Given:

depth of the ocean's floor = h = 11 000 m

diameter pilot sphere = d = 1.1 m

atmospheric pressure = Po = 10⁵ Pa

Asked:

total inward force = F = ?

Solution:

[tex]F = P A[/tex]

[tex]F = ( P_o + \rho g h ) A[/tex]

[tex]F = ( P_o + \rho g h ) ( \pi d^2 )[/tex] → Area of Sphere = π d²

[tex]F = ( 10^5 + 1000 \times 9.8 \times 11000 ) ( \pi \times 1.1^2 )[/tex]

[tex]F \approx 4.1 \times 10^8 \texttt{ Newton}[/tex]

[tex]\texttt{ }[/tex]

The total inward force is about 4.1 × 10⁸ N

[tex]\texttt{ }[/tex]

[tex]\texttt{ }[/tex]

Grade: High School

Subject: Physics

Chapter: Pressure

The number of cards in a deck without jokers is 52. If you draw just one card then the probability is going to have 52 in the denominator

the cards between 2 and 7 in the spade suit are 3 4 5 6. Since you have written "between", 4 cards will be successful.

The answer is P(3,4,5,6) = 4/52 which reduces to 1/13

Answer 1/13.

The odds against drawing a spade greater than 2 and less than 7 from a deck of cards are 25 to 1.

The odds against drawing a spade greater than 2 and less than 7 can be found by determining the probability of drawing a spade greater than 2 and less than 7, and then calculating the complement of that probability. Firstly, we need to determine the number of favorable outcomes, which is 2 (the 3 of spades and the 4 of spades). The number of possible outcomes is 52 (the total number of cards in the deck). Therefore, the probability of drawing a spade greater than 2 and less than 7 is 2/52, or 1/26. The complement of this probability, which represents the odds against drawing a spade greater than 2 and less than 7, is 1 - 1/26 = 25/26. So, the odds against drawing a spade greater than 2 and less than 7 are 25 to 1.

HBr has hydrogen ions (H+), not hydroxide ions (OH-).

Therefore, HBr is an acid, which decrease the pH level.

The answer is A.

the answer is D) your welcome :)))

It would be 7.22 degrees Celsius.

Steps: (45°F − 32) × 5/9 = 7.222°C

Human dignity and worth and social justice are TWO OF THE BASIC VALUES OF THE CODE OF ETHICS FOR SOCIAL WORK.

Social workers are those professionals, who promote social change by helping to relieve hardship and suffering. Social work is committed to five basic values, which are:

1. Human dignity  and worth

2. Social justice

3.  Service to humanity

4. Integrity

5. Competence.

The human dignity and self worth value holds that all human beings have intrinsic value, right to well being, right to self fulfillment and control over their own lives.

The social justice value states that there should be fair and equitable distribution of resources to meet basic human needs and all citizens should have access to public resources in order to achieve full potential.

-45N because you add the side together and make it equal 0

Kiley and Germaine pull together, resulting in a force of 45N which pulls the rope that way ===> .

In order to balance the forces on the rope, Gunther must pull the rope with a force of 45N this way  <===, all by himself.

The net force on the rope will then be zero, and the rope will not accelerate.  (Although the tension inside the rope will be 90N.)

By the way . . . I'd love to see how the kids manage to all get on the "sides" of the rope.  I would have expected them to just do it the easy way and stand at the "ends" of the rope.

C is the correct answer. Opposites attract!

In choice C, the two magnets are closer together so it wouldn't have much attractive force. Whereas, in choice D, the two magnets are further apart so it might have the greatest attractive force.

If I were you, I would choose D, but I suck at school so it probably isn't D.

According to the Law of Universal Gravitation (applying to all things in the universe, hence "universal"), all objects attract each other through gravitational force. ... As mass increases, gravity increases (related linearly) because there is a stronger attraction between objects with more "stuff" (matter).

Answer:

A. Highly viscous and associated with violent eruptions

Explanation:

Most silica rich magma have high viscosity and huge amount of trapped gases within them. As they continue to upwell and expand, the gases causes violent eruptions near Volcanoes. Most granitic/rhyolitic magma are silica rich.

Answer: Option (A)

Explanation: Silica rich magma are those in which the magma has more than 65 % of silica content. The higher the silica content, the higher is its viscosity i.e viscosity of a magma is directly proportional to the silica content of magma.

This highly viscous magma inside the volcanoes moves sluggishly and mostly gets concentrated in the vents and seals them. With time, when the pressure exerted by the magma is too high, it creates violent eruptions through the vents.

Thus, the correct answer is option (A).

Answer:

option B

−1.92 m/s2

Explanation:

Given in the question,

time took by truck to slow down = 3.56 sec

initial speed of truck = 112 km/h

final speed of truck = 87.4 km/h

1 km/h = 0.277778 m/s

112 = 31.1 m/s

87.4 = 24.28 m/s

Formula use to calculate the acceleration

v - u = at

where v is final speed

           u is initial speed

           a is acceleration

           t is time

plug values in the equation

24.28 - 31.1 = a(3.56)

-6.8 = a(3.56)

a = -6.8 / 3.56

a = -1.9 m/s²

A pulley makes work easier by redistributing the force required to lift an object, providing mechanical advantage and allowing the user to exert less force over a greater distance.

A pulley is a simple machine that consists of a grooved wheel and a rope or cable. It is used to change the direction or magnitude of a force, making it easier to lift or move heavy objects.

The primary concept behind how a pulley makes work easier is the principle of mechanical advantage. Mechanical advantage refers to the ability of a machine to multiply the input force applied to it, resulting in a greater output force. In the case of a pulley, it can provide a mechanical advantage by redistributing the force required to lift an object over a larger distance.

When a force is applied to one end of the rope wrapped around a pulley, the tension in the rope becomes equal throughout its length. This means that the force applied on one side of the pulley is transmitted to the other side with the same magnitude. As a result, the load being lifted is shared between the rope segments on each side of the pulley.

By using multiple pulleys, either in a fixed or movable configuration, a system of pulleys known as a block and tackle can be created. This arrangement allows for further mechanical advantage by increasing the number of rope segments supporting the load. Each additional pulley effectively divides the force required to lift the load, reducing the effort needed.

Therefore, a pulley system allows the user to exert less force over a greater distance, making it easier to lift heavy objects. The mechanical advantage provided by the pulley helps in minimizing the effort required to overcome the resistance or weight of the load, thus making work easier.

To learn more about Ideal mechanical advantage click:

brainly.com/question/6968974

#SPJ6

Answer;

The above statement is True

Kinetic friction is affected by the weight of the object.

            F= coefficient of friction * Normal force.

              F = mass* acceleration due to gravity.

Answer:

The answer is True. Friction is indeed affected by weight.

Explanation:

Answer:

In the figure attached we can see in a better way this situation. If we are told the rope is at 60 degress to the horizontal, we can place this rope in the origin of the X-Y coordinate system.

If we observe in detail, we have a right triangle where the opposite side [tex]OS[/tex] to the angle [tex]60\º[/tex] is the vertical component [tex]F_{y}[/tex] and the adjacent side [tex]AS[/tex] is the horizontal component [tex]F_{x}[/tex] . So, we can use trigonometric functions to find the force [tex]F[/tex] (the hypotenuse [tex]h[/tex]) applied to the rope.

For [tex]F_{x}[/tex]:

We can use the trigonometric function cosine, which is defined as:

[tex]cos(60\º)=\frac{AS}{h}[/tex]

This means [tex]F_{x}=Fcos(60\º)[/tex]

[tex]F_{x}=300Ncos(60\º)[/tex]

[tex]F_{x}=150N[/tex]

For [tex]F_{y}[/tex]:

We can use the trigonometric function sine, which is defined as:

[tex]sin(60\º)=\frac{OS}{h}[/tex]

This means [tex]F_{y}=Fsin(60\º)[/tex]

[tex]F_{y}=300Nsin(60\º)[/tex]

[tex]F_{y}=259.8N[/tex]

Finally the horizontal and vertical components are 150 N and 259.8 N

A is the correct answer

the first one is the answer

Answer:

a

Explanation:

Check the combination of the horses, review them, you'll get the answer.

Answer:

0.45 J/gC

Explanation:

The heat absorbed by the sample of iron is given by:

[tex]Q=mC_s (T_f-T_i)[/tex]

where:

Q = 1004 J is the heat absorbed

m = 111.6 g is the mass of the sample

Cs is the specific heat capacity of iron

T_f = 20 C is the final temperature of the sample

T_i = 0 C is the initial temperature

Solving the equation for Cs, we find

[tex]C_s = \frac{Q}{m(T_f-T_i)}=\frac{1004 J}{(111.6 g)(20 C-0 C)}=0.45 J/gC[/tex]

Answer:

A glass table able to withstand a normal force of 450 N when a 500 N object is placed on it

Explanation:

An object is said to be in equilibrium when the net force acting on it is zero.

Let's analyze each option:

- A glass table able to withstand a normal force of 450 N when a 500 N object is placed on it.  --> NON-EQUILIBRIUM. In fact, the downward force (the weight of the object, 500 N) is more than the maximum upward normal force (450 N), so the net force is non-zero.

- Two teams pulling a rope in opposite directions, both with a force of 3670 N  --> EQUILIBRIUM. Both forces are equal in magnitude and opposite in direction, so the net force is zero.

- An 80-N rope holding up a 920-N weight with a tension of 1000 N.  --> EQUILIBRIUM. The total force pulling on one side is 80 N + 920 N = 1000 N, which is equal to the force on the other side.

- A 500-newton sign hanging from two chains of insignificant weight, each with a tension of 250 N --> EQUILIBRIUM. The total force pushing on one side is 250 N*2 = 500 N, which is equal to the force on the other side.

The most appropriate title would be " New Planet Discovered in Binary Star System ".

This title doesn't have enough glitz and glamour to be the headline of the same information in a newspaper ... as they say, it wouldn't "sell papers".  So a headline writer would have to make up a gripping, understandable, grabbing, popular, slightly misleading headline for it.

But the kind of people who read Nature don't need to be baited or tricked into reading something.  They're already interested in the subject, and they may be people who work in researching it.  They read that journal to keep up with what's happening with things they're already interested in.

Remember ... part of the modern Scientific Method is to let other scientists know all about what you're doing and what you're finding.  Nature is one of the places where real scientists do that.

Answer:

New Planet Discovered in Binary Star System

Explanation:

D because any answer to volume has to be cubed.

Answer:The answer is B

Explanation:

A generator produces electricity. Energy enters the system (generator) as kinetic energy. It is converted into electrical energy, which can run electrical appliances. Some energy is always wasted as heat and sound. Therefore, Choice B is the best answer.

Answer:

B

Explanation:

it shows the best answer

I think the true option is "The sun uses its own matter to create light and heat."

Answer:

 - The sun uses its own matter to create light and heat.          

Explanation:

Sun is composed of gases majorly Hydrogen and Helium. In the core, the hydrogen atoms fuse to form helium atoms. This nuclear fusion reaction in the core produces huge amount of energy in the form of heat and light.

Thus, the statement that sun uses its own matter to create light and heat is true.

Sun is a G2 star. It is not a rare star. It is appears extremely bright because it is closer to earth. Else, it has a average brightness.

When we look at the sun, we actually view the photosphere. chromosphere is only visible during a total solar eclipse.

The sun would eventually die and in this process, it would become red giant expand and engulf the earth. Finally its core would form a white dwarf.