What was the major flaw of the first electric toasters?

The average atomic mass of element X is approximately 128.44 amu.  The average atomic mass takes into account the relative abundances of the isotopes.

The average atomic mass is calculated by multiplying the mass of each isotope by its abundance and summing up these values. In this case, element X has three isotopes:

¹²⁶X, ¹²⁸X, and ¹³⁰X, with abundances of 22.00%, 34.00%, and 44.00% respectively.

To calculate the average atomic mass, we multiply the mass of each isotope by its abundance and sum up these values. The atomic mass of ¹²⁶X is 126 amu, ¹²⁸X is 128 amu, and ¹³⁰X is 130 amu.

Using the given abundances and atomic masses, we can calculate the average atomic mass as follows:

Average Atomic Mass = (126 amu × 0.22) + (128 amu × 0.34) + (130 amu × 0.44)

                  = 27.72 amu + 43.52 amu + 57.20 amu

                  = 128.44 amu

Learn more about average atomic mass here:

https://brainly.com/question/13753702

#SPJ11

Answer:

The net force is directed toward the center of the circular path.

Answer:

Why would you bury the survivors? LOL

Answer:

you dont bury the surviors because they are alive.

Explanation:

Please mark me branliest

Simplicity of conducting the study is to archival research as ability to test large numbers of participants is to surveys.

Archival research is a type of research which involves seeking out and extracting the evidence from archival records. These archival records may be held together either in the collection of institutions, such as libraries and museums, or in the custody of the organization that originally generated or accumulated them, or in that of a successor object.

Archival research can be contrasted with the secondary research, which involves identification and consulting the secondary sources related to the topic of enquiry; and with the other types of primary research and empirical investigation such as fieldwork and experiment.

Learn more about Archival research here:

https://brainly.com/question/15093886

#SPJ6

option B. The ruler is the object that is not in equilibrium. Option B.

The ruler is not in equilibrium. What is equilibrium? Equilibrium is a state of balance in which all the forces and moments on a body are equal and balanced, resulting in no net force or acceleration. When an object is at equilibrium, it is either at rest or moving with a constant velocity. The stability of an object is determined by the location of its center of mass. If the object's center of mass is above its base of support, it is unstable and will tip over.To determine whether the four given objects are in equilibrium, we must first determine their centers of mass. In the figure, the black dot indicates the center of mass. Let's start with object A: A metal sphere: The center of mass is located at the center of the sphere, which is also the geometric center, so the sphere is in equilibrium. Object B: A ruler: The center of mass is located at the center of the ruler, which is also the geometric center. However, the base of the ruler is not wide enough to support it when it is not vertical, so it is not in equilibrium. Object C: A box: The center of mass is located at the center of the box, which is also the geometric center, so the box is in equilibrium. Object D: A cone: The center of mass is located slightly above the geometric center, which is at the bottom of the cone. The base of the cone, however, is wide enough to support it, so it is in equilibrium.

The ruler is the object that is not in equilibrium. Option B.

To know more about equilibrium visit:

brainly.com/question/30694482

#SPJ11

Answer:

191433.4 hours

Explanation:

We are given that In the average US household, the television is on 6.75 hours/day! How many hours will have passed after 77.7 years (the average lifeexpectancy of an American)?

1 year - 365 days

Given that the television is on 6.75 hours/day.

If 1 year = 365 days

Convert 77.7 years to days by multiplying it by 365

77.7 × 365 = 28360.5 days

So the number of hours will be:

28360.5 × 6.75 = 191433.375 hours

Therefore, 191433.4 hours will pass.

Non of the options is correct.

Answer:

b) combine

Explanation:

The energy from the sun is due to Nuclear Fusion where lighter nuclei combine to form heavier and stable nuclei this releasing a lot of energy in this process.

Answer:

crest moon

Explanation: because you ar etalking about moons

Hotter is Star X. Ionized helium lines are highest at high temperatures (> 30,000 K), whereas titanium oxide lines are brightest at low temperatures (3000 K), according to the study Absorption Lines in Stars of Different Temperatures. Star X must therefore be hotter than Star Y. A higher amount of electron excitation.

The creation of excimers are two other methods of making helium reactive. Helium that has been ionized (He+), also referred to as He II, is a very high energy substance capable of removing one electron from any other element. One electron only exists in a single, ionized helium atom.

To learn more about Helium, click here.

https://brainly.com/question/4945478

#SPJ4

In one revolution the mass will travel with the distance 0.66π.

The revolution number of the tire can be calculated by using the circular motion. The revolution number is represented by n. The number of revolutions in a circular motion should follow

n = s / (2πR)

where n is total revolution, s is total distance and R is the radius of circular object.

From the question above, the given parameters are

n = 1

R = 0.33 m

By using the given equation, we can calculate the total distance traveled in one revolution

n = s / (2πR)

1 = s / (2 . π . 0.33)

s = 0.66π

Find more on the revolution at: https://brainly.com/question/16533738

#SPJ4

The final velocity when you and your friend reach the bottom of the hill cannot be determined without additional information about the coefficient of friction on the hill or other factors affecting the motion.

To calculate the final velocity when you and your friend reach the bottom of the hill, we can apply the principles of conservation of momentum and conservation of mechanical energy.

Given:

First, let's calculate the initial momentum before colliding with your friend:

Initial momentum (p_initial) = m1 * v1

Next, we calculate the frictional force on the sidewalk:

Frictional force (f_friction1) = μ1 * (m1 + m2) * 9.8 m/s^2

The work done by friction on the sidewalk can be calculated as:

Work done by friction on the sidewalk (W_friction1) = f_friction1 * d1

Since the work done by friction on the sidewalk is negative (opposite to the direction of motion), it results in a loss of mechanical energy. Thus, the change in mechanical energy on the sidewalk is:

Change in mechanical energy on the sidewalk (ΔE1) = -W_friction1

After colliding with your friend, the total mass becomes (m1 + m2).

Now, let's calculate the potential energy at the top of the hill:

Potential energy at the top of the hill (PE_top) = (m1 + m2) * g * h

Since there is no friction on the hill, the total mechanical energy is conserved. Therefore, the final kinetic energy at the bottom of the hill is equal to the initial mechanical energy minus the change in mechanical energy on the sidewalk and the potential energy at the top of the hill:

Final kinetic energy at the bottom of the hill (KE_final) = p_initial - ΔE1 - PE_top

Finally, we can calculate the final velocity (v_final) at the bottom of the hill:

Final velocity at the bottom of the hill (v_final) = sqrt(2 * KE_final / (m1 + m2))

After performing the calculations using the given values, you can determine the final velocity when you and your friend reach the bottom of the hill.

To learn more about frictional force, Visit:

https://brainly.com/question/24386803

#SPJ11

The linear velocity of Sanjay and Ting is 0.98 m/s. Linear velocity is a measure of how fast an object is moving in a straight line.

To find the linear velocity of Sanjay and Ting, we can use the formula:

Linear velocity = Angular velocity * Radius

The angular velocity of the merry-go-round is 21 rpm, or 21 * 2 * pi / 60 = 0.7 rad/s.

The radius of the merry-go-round is 1.75 m,

which is the radius of the playground merry-go-round minus the distance that Sanjay and Ting walk inwards (1.75 m - 0.35 m = 1.4 m).

So the linear velocity of Sanjay and Ting is 0.7 rad/s * 1.4 m = 0.98 m/s.

It's important to note that this linear velocity is relative to the merry-go-round itself, not the ground. To find the linear velocity relative to the ground, we would need to take into account the rotation of the merry-go-round.

To learn more about angular velocity refer :

https://brainly.com/question/20432894

#SPJ4

The critical depth in the hydraulic jump can be calculated using the specific energy equation. In this case, with a flow rate of 1.17 m³/s, channel width of 1.7 m, and a depth of 149 mm, the critical depth can be determined.

To calculate the critical depth in the hydraulic jump, we can use the specific energy equation, which relates the flow rate, channel dimensions, and water depth. The equation can be written as:

E = (Q² / (2g)) + (y² / (2g)) + (A² / (P * g))

Where:

E is the specific energy,

Q is the flow rate,

g is the acceleration due to gravity,

y is the water depth,

A is the cross-sectional area of flow,

P is the wetted perimeter of the channel.

In this case, we have a flow rate of 1.17 m³/s, a channel width of 1.7 m, and a depth of 149 mm (or 0.149 m). We need to find the critical depth, which occurs at the hydraulic jump. At the critical depth, the specific energy reaches its minimum value.

To determine the critical depth, we need to set the derivative of the specific energy equation with respect to the water depth equal to zero and solve for y. This will give us the critical depth. However, calculating the critical depth requires knowing additional parameters such as the cross-sectional area and wetted perimeter, which are not provided in the given information. Without these values, it is not possible to calculate the critical depth accurately.

Learn more about acceleration here :

https://brainly.com/question/2303856

#SPJ11

Answer:

Heat of vaporization

Explanation:

When water is at high levels of temperature heat is move as an energy source into the air.    

Answer:

\(\boxed {\boxed {\sf Heat \ of \ vaporization}}\)

Explanation:

There are two options for this answer: heat of fusion or heat of vaporization.

Let's define both of the terms.

Heat of fusion:

Heat of vaporization:

The question asks us which type of heat provides the energy for the phase change of a liquid to a gas. Therefore, the correct answer is heat of vaporization.

Answer:

Tension force.

Explanation:

Because to exert force from each other.

Answer:

a skydiver falling at terminal (constant) velocity

Explanation:

Answer:

Hey mate, here is your answer answer. Hope it helps you

Explanation:

1. If a worker has come into contact with electricity the worker may not be able to remove themselves from the electrical source. The human body is a good conductor of electricity. If you touch a person while they are in contact with the electrical source, the electricity will flow through your body causing electrical shock. Firstly attempt to turn off the source of the electricity (disconnect). If the electrical source can not readily and safely be turned off, use a non-conducting object, such as a fibreglass object or a wooden pole, to remove the person from the electrical source.

2. C- Electrical energy.The term electrical activity means that the food itself has the power to generate electric energy that persists some period of time. This work presents a purely renewable energy as energy comes. the zinc reacts with food tissue.

Answer:

blood picks up waste products such as carbon dioxide

returns to right atrium

moves to right ventricle and to lungs

blood travels from the lungs to the left atrium

carries oxygen and nutrients to the body cells

Explanation:

In the circulatory system, the blood carries the carbon dioxide to the right atrium of the heart through superior vena cava, then it move to right ventricle through tricuspid valve. The blood move to lungs following pulmonary artery and from lungs blood travels to the left atrium. From left atrium blood moves to the rest of the body through aorta and carries oxygen and nutrients to the whole body cells through.

Hence, the correct order is as follows:

blood picks up waste products such as carbon dioxide

returns to right atrium

moves to right ventricle and to lungs

blood travels from the lungs to the left atrium

carries oxygen and nutrients to the body cells

If the velocity of the boat is changing, then the boat is changing direction.

option C.

The velocity of a boat can change due to various factors such as;

Additionally, the boat's velocity can change if the boat's pilot applies the brakes or changes the direction of the boat. The boat's velocity can also be influenced by the shape and weight distribution of the boat, the speed of the water, and the presence of other boats and objects in the water.

Learn  more about velocity here: https://brainly.com/question/25905661

#SPJ1

Given,

The volume of a gas varies inversely as the pressure on it. If the volume is 240 cm³ under a pressure of 30 kg/cm².

To find,

What pressure has to be applied to have a volume of 160 cm³.

Solution,

ATQ,

Volume of a gas is inversely proportional to the pressure. Mathematically,

\(V\propto \dfrac{1}{P}\)

or

\(V_1P_1=V_2P_2\)

We have, V₁ = 240 cm³, V₂ = 160 cm³, P₁ = 30 km/cm², P₂=?

\(P_2=\dfrac{V_1P_1}{V_2}\\\\P_2=\dfrac{240\times 30}{160}\\\\P_2=45\ kg/cm^2\)

So, the new pressure is \(45\ kg/cm^2\).

Answer:

1240 m/s

Explanation:

[Do you mean 0.035 kg bullet?]

Since the momentum of the system is conserved,

Let u m/s be the initial velocity of the bullet

0.035u = 8.6(5+0.035)

u ~= 1237.1714 m/s

u = 1240 m/s (3 sig. fig.)

That's pretty simple, we have;

We know that;

And..

Put all the values;

Therefore, the total time taken will be 92.85 sec.

Answer: the answer is true :-)

Explanation:

Answer:

Load = 80 Newton

Explanation:

Given the following data:

Effort = 20 N

Load arm = 15 cm

Effort arm = 60 cm

Conversion:

100 cm = 1 meters

15 cm = 15/100 = 0.15 meters

60 cm = 60/100 = 0.6 meters

To calculate the load, we would use the expression;

Effort * effort arm = load * load arm

Substituting into the expression, we have;

20 * 0.6 = load * 0.15

12 = load * 0.15

Load = 12/0.15

Load = 80 Newton

Answer: The SI unit for pressure is PASCAL (pa)

Explanation: HOPE THIS HELPS!!!!

Answer:

Isn't it technically your brain? Because it's always in your skull and when you're younger you have cracks in your skull but as you grow, your skull fossilizes to mend those cracks. IT FOSSILIZES!

Explanation:

Answer: because of air resistance. See explanation for further details.

Explanation: Galileo performed an experiment to proof that the time of descent of two different masses is independent of time.

But in reality this is most likely not true because of air resistance and other fluid frictional effects in consideration.

If the experiment is performed in a vacuum, it will always be true that time is independent of masses of two falling objects.

\(\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}\)

Actually Welcome to the Concept of the Methods of Separation.

Evaporation and Decantation are the process which can be easily used to remove the Soluble Impurities.

Answer:

To remove soluble impurities, first, by doing solubility tests, a suitable solvent is chosen (high solubility in hot solvent, low solubility in cold solvent). The soluble impurities are then removed as follows: the desired compound along with the soluble impurities are dissolved in a MINIMUM of near-BOILING solvent.

#SPJ11The potential difference across the capacitor with a capacitance of 5.0 μF is twice the potential difference across the capacitor with a capacitance of 10.0 μF.

When the two identical parallel-plate capacitors are charged to a potential difference of 50.0V and then connected in parallel with plates of like sign connected, the total capacitance becomes the sum of the individual capacitances.

So, the total capacitance in this case is 2 times 10.0 μF, which is 20.0 μF.

When the plate separation in one of the capacitors is doubled, the capacitance of that capacitor is halved. So, one of the capacitors now has a capacitance of 5.0 μF.

To find the potential difference across each capacitor after the plate separation is doubled, we can use the formula Q = CV, where Q is the charge, C is the capacitance, and V is the potential difference.

Since the capacitors are connected in parallel, the charge on each capacitor is the same. Let's say it is Q.

For the capacitor with a capacitance of 5.0 μF, we have Q = (5.0 μF) * V1, where V1 is the potential difference across this capacitor.

For the capacitor with a capacitance of 10.0 μF, we have Q = (10.0 μF) * V2, where V2 is the potential difference across this capacitor.

Since the charge is the same for both capacitors, we can equate the two equations:

(5.0 μF) * V1 = (10.0 μF) * V2

Rearranging this equation, we get:

V1 = 2 * V2

So, the potential difference across the capacitor with a capacitance of 5.0 μF is twice the potential difference across the capacitor with a capacitance of 10.0 μF.

In other words, if V2 is the potential difference across the capacitor with a capacitance of 10.0 μF, then the potential difference across the capacitor with a capacitance of 5.0 μF is 2 * V2.

to learn more about potential difference

https://brainly.com/question/23716417

#SPJ11

Answer:

he magnetic field is greater because the magnetization of the material is added

Explanation:

The magnetic field in a solenoid is given by the relation

          B₀o = μ₀ n I

where n is the density of turns and I the current

When we put a magnetic material inside solenoid

the magnetic field is

         B = B₀ + μ₀ M

where M is called the magnetization of the material and corresponds to the alignment of the magnetic moments of the atoms with the field, therefore the total field is much greater, it should be noted that the part of Bo increases with the current, but the magnetization has a maximum value.

Consequently the magnetic field is greater because the magnetization of the material is added