on the avogadro constant tab, place the copper (cu) atom on the nano-balance on the left, which will show the average atomic mass of copper rather than the mass of a single copper atom.
1. What is the average mass of a copper atom?
2. To gain an idea as to how many atoms are in a gram or so of copper, use the larger balance on the right. Press Add atoms to put a scoop of atoms in the weighing dish, and keep adding until the balance registers between 1 and 2 grams. If you don’t seem to be making much progress, adjust the exponent using the slider, which will make the scoop size bigger.
How many atoms did you need to add?
Answers
The average mass of a copper atom (Cu) is approximately 63.5 (amu).
atoms are in a gram of copper is 6.022 x 10²³ atoms/mol.
1. The average mass of a copper atom (Cu) is approximately 63.5 atomic mass units (amu). This value is based on the weighted average of naturally occurring isotopes of copper.
2. To determine how many atoms are in a gram of copper, you can use the Avogadro constant, which is approximately 6.022 x 10²³ atoms/mol. First, you need to convert the average atomic mass of copper (63.5 amu) to grams per mole by using the molar mass, which is 63.5 g/mol for copper. Then, divide 1 gram of copper by its molar mass:
1 g / (63.5 g/mol) ≈ 0.0157 mol of copper
Now, multiply this number by Avogadro's constant to find the number of atoms:
0.0157 mol x (6.022 x 10^23 atoms/mol) ≈ 9.47 x 10^22 atoms
Therefore, you would need to add approximately 9.47 x 10^22 copper atoms to have between 1 and 2 grams of copper.
To learn more about average mass visit: https://brainly.com/question/30587714
#SPJ11
Related Questions
What could happen to a nonrenewable resource if it is consumed at a high rate?
A. It could be depleted quickly
B. It could be consumed very slowly
C. It could be replenished very slowly
D. It could be replenished quickly
Answers
Answer:
A. It could be depleted quickly.
Explanation:
It's Non-renewable, meaning it's hard to get back quickly, and using it at a high rate makes it run out well.. quicker.
Answer:
a
Explanation:
If a wheel has a radius of 0.26m, how far does it go after 5 rotations
Answers
The distance wheel goes about 1.3m after 5 rotations.
What is distance called?Distance is a measurement of how far away two things or locations are, either numerically or occasionally qualitatively. Distance can refer to a physical length in physics or to an estimate based on other factors in common use.A scalar number known as distance measures "how much ground an item has traversed" while moving. An object's total change in position is referred to as displacement, a vector variable that measures "how far out of place an item is."The Distance Formula itself is actually derived from the Pythagorean Theorem which is a 2 + b 2 = c 2 {a^2} + {b^2} = {c^2} a2+b2=c2 where c is the longest side of a right triangle (also known as the hypotenuse) and a and b are the other shorter sides (known as the legs of a right triangle).
Given data :
radius = 0.26 m
rotation = 5
Distance = 0.26 x 5 = 1.3 m
Learn more about distance refer to :
https://brainly.com/question/26550516
#SPJ1
Convert 0.000000123 to scientific notation
Answers
Answer:
1.23 x 10^ -7
Explanation:
0.000000123, move the decimal to the right 7 places
Calculate the kinetic energy possessed by an electron when it gets ejected from an atom if the energy supplied to eject the electron is 3.0 eV and threshold energy is 1.5 eV. 1eV
Answers
Answer:
KE = total energy available - energy required to eject (threshold)
KE = (3 - 1.5) eV = 1.5 eV
Which type of fault has NO vertical motion of rocks associated with it?
A)shear fault
B)strike-slip fault
C)reverse fault
D)normal fault
Answers
The correct answer is B) strike-slip fault. It is the type of fault that has no vertical motion of rocks associated with it. Instead, the rocks move horizontally past each other, resulting in a side-to-side motion.
This type of fault does not involve any vertical motion of the rocks, and therefore has no associated vertical motion of rocks associated with it. Like shear faults, strike-slip faults also have no vertical motion of rocks associated with them. In a strike-slip fault, the rocks on either side of the fault move horizontally in opposite directions. This type of fault is also known as a 'lateral fault' since there is only horizontal movement along the fault plane.
To learn more about motion click here https://brainly.com/question/22810476
#SPJ11
What is the force and torque on a square-shaped 6A current carrying loop of
conducting wire that has an area of 0.0025m2 and surrounded by a permanent magnet
with a field strength of B = 2 × 10−2T that is tilted at 370
to the loop?
Answers
The force on the current-carrying loop is 0 N, and the torque experienced by the loop is 0.009 Nm.
To find the force and torque on the square-shaped 6A current-carrying loop, we first need to understand that the force on a current loop in a magnetic field is given by F = qvB, where q is the charge, v is the velocity, and B is the magnetic field strength. In this case, the force will be 0 N, because the magnetic field is parallel to the loop and the angle between them is 0°.
To calculate the torque τ, we use the formula τ = μBsinθ, where μ is the magnetic moment, B is the magnetic field strength, and θ is the angle between them. The magnetic moment μ is calculated as μ = IA, where I is the current and A is the area of the loop. Plugging in the values, we have μ = 6A × 0.0025m^2 = 0.015 Am^2. Since the magnetic field is tilted at 37°, we have θ = 37°.
Now, τ = (0.015 Am^2)(2 × 10^-2 T)sin(37°) ≈ 0.009 Nm. Thus, the torque experienced by the loop is 0.009 Nm.
Learn more about torque here:
https://brainly.com/question/25708791
#SPJ11
When astronomers say that the groups of galaxies are distributed isotropically, they mean that?
Answers
When astronomers say that the groups of galaxies are distributed isotropically, they mean that the group of galaxies appears to be similar when viewed through any directions.
Isotropy of galaxies means that the arrangement of galaxies doesn't differ in any directions. That is ,the galaxies are arranged in such a way that it seems same even if viewed from different directions. The word isotropy refers to the lack of preference to the direction.
In Cosmology, the universe is also said to have isotropy and homogeneity. Homogeneity also refers to the uncertainty of location.
In astronomy, the isotropy of galaxies simply means there will be no difference in the galaxies viewed from different directions.
Learn more about Isotropy at https://brainly.com/question/13045529
#SPJ4
on
when you throw a ball
the
ground
and it
bounces back to your hand,
is it elastic collision ? Explain.
Answers
Answer:
The ground hits the ball with same force with which the balls hit the ground. That's why ball bounces back.
Gravity stops it from bouncing forever.
Hope this helps..
Which processes occur during the second stage of technological design? Check all that apply.
designing a solution
studying relevant information
rebuilding and retesting
reporting a solution
defining criteria of success
identifying a problem
building a prototype
I need help quick
Answers
Explanation:
The processes that occur during the second stage of technological design are:
Studying relevant information
Defining criteria of success
Identifying a problem
The other processes you mentioned, such as designing a solution, rebuilding and retesting, reporting a solution, and building a prototype, can be part of the subsequent stages of technological design, but they are not specifically associated with the second stage.
in fig. 5-7, is the magnitude of the normal force fn greater than, less than, or equal to mg if the block and table are in an elevator moving upward (a) at constant speed and (b) at increasing speed?
Answers
When the block and table are in an elevator moving upward at a constant speed, the magnitude of the normal force (Fn) is equal to the weight (mg) of the block.
This is because there is no net force acting in the vertical direction, so Fn balances out the weight of the block.
If the elevator is moving upward at an increasing speed, the magnitude of the normal force (Fn) will be greater than the weight (mg) of the block. The additional upward acceleration of the elevator requires an additional upward force to accelerate the block. The normal force must be greater than mg to provide this extra force and maintain equilibrium.
to learn more about equilibrium click here; brainly.com/question/31595593
#SPJ11
A block of metal weighs 60 newtons on the earth. You take it to the moon and find it weighs 10 newtons. With what acceleration will it
fall on the moon?
O
m
• 6.0 m/s2
9.8 m/s2
o
1.6 m/s
1.0 m/s?
2
Answers
Answer:
1.6 m/s
Explanation:
What is the piece of information that is communicated using the senses?
Answers
1. suppose you had to haul a heavy bucket of water from a deep well. which way do you think would be easiest for lifting the bucket? (circle your answer.)
Answers
the easiest way to lift a heavy bucket of water from a deep well will depend on the specific situation and the available resources.
Assuming that the bucket of water is heavy, lifting it straight up from the well requires a lot of force and energy, which can make the task quite difficult. Therefore, it is often easier to use a different method of lifting the bucket. One option is to use a pulley system, where a rope or cable is looped over a pulley, and one end is attached to the bucket while the other end is pulled by the person lifting the bucket. This method allows for the weight of the bucket to be distributed over several points, reducing the amount of force required to lift it.
Another option is to use an inclined plane or ramp. This method involves placing a board or other flat surface at an angle, and then sliding the bucket up the ramp rather than lifting it straight up. By using an inclined plane, the force required to lift the bucket is reduced, as it is spread out over a longer distance.
In general, the easiest way to lift a heavy bucket of water from a deep well will depend on the specific situation and the available resources. Factors such as the weight of the bucket, the distance it needs to be lifted, and the physical abilities of the person doing the lifting should all be taken into account when choosing the best method for the task.
To know more about force and energy, click here:
brainly.com/question/17168043
#SPJ4
Why is it that continually displacing the ring from its equilibrium position, releasing it, and watching its subsequent behavior as you adjust the mass and/or angle of the equilibrant will give you more precise results then simply letting the ring move on its own?
Answers
Method of adjustment is a precise experimental technique, while allowing the system to move on its own can be influenced by external factors.
How does the method of adjustment help in determining the properties of a physical system?Continually displacing the ring from its equilibrium position, releasing it, and watching its subsequent behavior as you adjust the mass and/or angle of the equilibrant is known as an experimental technique called "method of adjustment". This technique is used to determine the value of a physical quantity with a high degree of precision.
When the ring is simply allowed to move on its own, it will oscillate back and forth until it comes to rest. This motion is affected by a number of factors, including the mass and angle of the equilibrant, the elasticity of the ring, and any other external factors that may be present. As a result, it can be difficult to accurately measure the period of oscillation or other properties of the system.
By contrast, the method of adjustment involves carefully adjusting the mass and/or angle of the equilibrant until the ring oscillates at a desired frequency or exhibits a desired behavior. This allows for a more precise determination of the system's properties, as the experimenter can fine-tune the system until it behaves in the desired manner. This method is particularly useful when working with systems that have small oscillations, as it allows for a more accurate determination of the period and other properties of the system.
In summary, the method of adjustment allows for a more precise determination of the properties of a physical system by allowing the experimenter to fine-tune the system until it behaves in the desired manner, whereas simply letting the system move on its own can be affected by a variety of external factors that can make accurate measurements difficult.
Learn more about method of adjustment
brainly.com/question/28500977
#SPJ11
The following circuit diagram shows a combination of difference capacitors and a voltage source C1=3uf,C2=6uf,C3=4uf,C4=12uf. Whatis the equivalent capacitance of the circuit
Answers
The equivalent capacitance of the circuit is Ceq = 1.2 uf
What do you mean by capacitance?The ability of an element or circuits to receive and hold fuel inside the form of an electric charge is known as capacitance. Devices that retain energy comprise capacitors, which are available in a variety of sizes and forms.
let the capacitors are connected in series combination then-
the equivalent capacitance
1 / C1 + 1 / C2 + 1 / C3 + 1 / C4 = Ceq^-1
Ceq^-1 = (1/3 + 1/6 + 1/4 + 1)/12
Ceq^-1 = 4+2+3+1/12
Ceq^-1 = 10/12
Ceq = 12/10
Ceq = 1.2 uf
To know more about capacitor visit :
https://brainly.com/question/14746225
#SPJ1
According to Newton's second law of motion, when a net force acts on an object, the acceleration is A. zero. B. inversely proportional to the object's mass. C. independent of mass. D. inversely proportional to the net force. E. directly proportional to the object's mass.
Answers
the weight of a person is 400N. he exerts 400N/m² pressure if he stands with both feet. Find the area of the floor covered by his both feet.
Answers
Answer:
1 m²Explanation:
The area of the floor covered by his both feet can be found by using the formula
\(a = \frac{f}{p} \\ \)
f is the force
p is the pressure
From the question we have
\(a = \frac{400}{400} = 1 \\ \)
We have the final answer as
1 m²Hope this helps you
Why do we always use water as a reference material when determining the relative density of a substance
Answers
Answer:
Because of it being able to become a gas, a liquid, and solid, and because its used in lots of chemical experiments. (also because its easier to describe it than any other liquid)
Explanation:
1. Water is used in most Chemicals, therefore its being used as a reference material.
2. W
you push your 0.70-kg pillow across your bed with a constant force of 16 n . the bed provides a frictional force of 7.0 n .What is the acceleration of the center of mass of the pillow? Assume that the direction of your push is the positive direction.
Answers
To find the acceleration of the center of mass of the pillow, we can use Newton's second law of motion, which states that the net force acting on an object is equal to the product of its mass and acceleration:
F\(_{net}\) = m × a
In this case, the net force is the difference between the applied force and the frictional force:
F\(_{net}\)= F\(_{applied}\) - F\(_{friction}\)
Given that the applied force is 16 N and the frictional force is 7.0 N, we can calculate the net force:
F\(_{net}\) = 16 N - 7.0 N
F\(_{net}\) = 9.0 N
Now we can substitute the net force and the mass of the pillow (0.70 kg) into Newton's second law to find the acceleration:
9.0 N = 0.70 kg × a
Solving for a:
a = 9.0 N / 0.70 kg
a = 12.86 m/s²
Therefore, the acceleration of the center of mass of the pillow is approximately 12.86 m/s².
To know more about acceleration
https://brainly.com/question/26408808
#SPJ4
What type of system would allow light to enter and exit, but would keep any
additional atoms out?
Answers
Answer: it’s closed
Explanation: a pex
Una ave vuela a una velocidad constante de 15m/s en una trayectoria rectilínea. Si dura una hora volando ¿cuanta distancia habrá recorrido?
Answers
Answer:
54,000
Explanation:
NEED HELP asap pls
How much thermal energy must be removed from 3.75 kg of
water to freeze it at its melting point? Use Q = mass x latent
heat of fusion.
Melting point
Boiling point
OA. 15.8 kJ
B. 1250 kJ
Cliquid
Latent heat of fusion.
Latent heat of vaporization
C. 3.75 kJ
Properties of water
Property
D. 8480 kJ
0°C
Value
100°C
4.18 kJ/(kg x °C)
333 kJ/kg
2260 kJ/kg
Answers
The heat that is required to freeze the water is 1250 kJ. Option B
What is the freezing point?The freezing point of water is the temperature at which liquid water turns to solid. We know that heat is withdrawn from water when it is frozen. This heat is added when the water melts.
The latent heat of fusion = mL
m = 3.75 kg
L = 333kJ/Kg
Hence;
H = 3.75 kg * 333kJ/Kg
H = 1250 kJ
Learn more about heat of fusion:https://brainly.com/question/14053504
#SPJ1
A 56 kg student stands atop aspring in an elevator that is acceleratingupward at 3.5 m/s2m/s2. The springconstant is 2900 N/mN/m. Part A Byhow much is the spring compressed
Answers
Given data,
Mass,
\(m=56\text{ kg}\)Acceleration,
\(a=3.5m/s^2\)Spring constant,
\(k=2900\text{ N/m}\)Acceleration due to gravity,
\(g=9.8m/s^2\)Accelerating upward,
\(\begin{gathered} a^{\prime}=(a+g) \\ a^{\prime}=3.5m/s^2+9.8m/s^2 \\ a^{\prime}=13.3m/s^2 \end{gathered}\)Comsider the formula for force.
\(\begin{gathered} F=kx \\ ma^{\prime}=kx \\ 56kg\times13.3m/s^2=2900\text{ N/m}\times x \\ x=25.68\text{ cm} \end{gathered}\)Thus, the spring compression is 25.68 cm.
a person throws a ball from shoulder height and parallel to ground with an initial horizontal velocity of 4 m/s. it hits the ground at exactly 5 seconds. what horizontal distance has the ball traveled?
Answers
The ball has traveled 20 meters in a horizontal direction. The outcome is achieved by using the idea of projectile motion.
What is speed and what is its SI equivalent?Just as for speed, "m/s" is the SI unit for velocity. (a) While mobility is just the rate at which a body's displacement changes, speed refers to the pace at which a body's distance traveled changes. While velocities is a vector field and requires both magnitude and orientation to really be described, speed is a rudderless quantity.
Briefing:dx = dVx × t
dx = 4 m/s × 5 s
dx = 20 m
Hence, the ball has travelled 20 m at the horizontal distance.
To know more about Velocity visit:
https://brainly.com/question/18084516
#SPJ4
Wind turbines work by converting __________ energy into _________ energy.
A. Chemical, Electromagnetic
B. Potential, Kinetic
C. Kinetic, Electric
D. Electric, Chemical
Answers
Answer: C
Explanation:
The kinetic energy of the wind turns the turbine which creates kinetic energy of it's own, this rotational kinetic energy can be called mechanical energy and is used to create electricity
Which object forms when a supergiant explodes? a red giant a protostar a white dwarf a neutron star
Answers
A neutron star forms when a supergiant explodes. Supergiant stars have the highest mass and luminosity of all-stars in the galaxy.
What exactly is a supergiant?When a supergiant star runs out of fuel, it will explode as a supernova owing to the loss of a large mass.
When this occurs, other stars in the galaxy will shine and eventually fade away, leaving a black hole or a neutral star in its place.
Hence neutron star forms when a supergiant explodes.
To learn more about the supergiant refer to the link;
https://brainly.com/question/2624737
Answer: D. a neutron star
Explanation: On Edge!!
Question 4 of 25
Two asteroids with masses 3.71 x 10 kg and 1.88 x 10 kg are separated by
a distance of 1,300 m. What is the gravitational force between the asteroids?
Newton's law of gravitation is Fgravity - Cmm The gravitational constant
Gis 6.67 x 101 N-mIkg²
OA. 2.75 x 107 N
B. 4.13 x 103 N
OC. 3.58 x 104N
D. 2.04 x 1033 N
Answers
F=Gm1m2/r*r
F=6.67*10^-11*3.71*10*1.88*10/1300*1300
F=4.65*10^-8/1690000
F=2.75*10^-14
Which has a greater atomic radius Calcium or Iron?
Answers
Iron has a greater atomic radius than calcium.
This comes from the fact that Iron has more electrons, this in turns means that the it has more shells and then the distance between its nucleos to the outer shells is greater.
Which of the following is true about Russia's natural resources?
A: The forested regions of Siberia are the largest in the world.
B: Its resources are easy to extract.
C: The nation doesn't have large reserves of coal or natural gas.
D: Russia is among the world's bottom producers of nickel and aluminum.
Answers
Answer:
A: The forested regions of Siberia are the largest in the world.
Explanation:
To Calculate Velocity and Average Velocity you can use the same formula as both.
True Or False?
Answers
Answer:
I believe it's True! Brainliest??
Explanation: Hope you have a great day :)