Answer: A I believe sorry if I’m wron.
Explanation:
Two atoms of the same element only differ because one of the atoms has more electrons, making it an ion. Which statement is true? They have the same A-number and the same Z-number. They have the same A-number but different Z-number. They have a different A-number but the same Z-number. They have different A-numbers and different Z-numbers.
The correct answer is Option B. The statement "they have the same A-number but different Z-number" is true .
Atoms of the same element only differ because one of the atoms has more electrons, making it an ion.
This difference does not affect the mass of the atom, which is determined by the sum of its protons and neutrons, represented by the atomic mass or A-number.
The number of protons in an atom is called the atomic number or Z-number.
The Z-number of an element is unique to it. All the atoms of a given element have the same number of protons.
Thus, for example, all carbon atoms have six protons, making the Z-number of carbon 6.
However, different isotopes of an element can have different numbers of neutrons.
This means that they have a different atomic mass or A-number.
Therefore, they have the same A-number but different Z-number.
Therefore the correct Option is B.
For more questions on Atoms
https://brainly.com/question/6258301
#SPJ8
When a falling meteoroid is at a distance above the Earth's surface of 3.50 times the Earth's radius, what is its acceleration due to the Earth's gravitation?
Answer:
0.484 m/s²
Explanation:
To solve this question, we would apply the formula for calculating gravitational acceleration at any distance.
g = GM/r², where
g = acceleration due to gravity
G = gravitational constant
r = radius of the meteoroid
Radius of the earth is given as 6371 km
The meteoroid is located at a distance 3.5 times the radius of the earth, so
r = R + 3.5R = 4.5R
r = 28670 km
Mass of the earth is, 5.97*10^24 kg
Now, we proceed to substitute our values into the earlier equation
g = GM/r²
g = (6.67*10^-11 * 5.97*10^24) / 28670²
g = 398.2*10^12 / 822*10^12
g = 0.484 m/s²
Thus, it's acceleration due to earth's gravitation is 0.484 m/s²
21. A box is at rest at the top of a frictionless inclined plane. As the box slides down the ramp where along the ramp would the box have half of its orginial potential energy?
Halfway down the ramp
When it is at half of its maximum velocity
When it is at half of its total trip time
Answer:
21. A box is at rest at the top of a frictionless inclined plane. As the box slides down the ramp where along the ramp would the box have half of its orginial potential energy?
Halfway down the ramp
When it is at half of its maximum velocity
When it is at half of its total trip time
Help please..............
Answer:
Its 60kmph
Explanation:
How has Physics improved
or affected our society?
By supplying the fundamental knowledge required to create new instruments and techniques for medical use, physics enhances our quality of life
From can openers, light bulbs, and mobile phones to muscles, lungs, and brains; from paintings, piccolos, and pirouettes to cameras, vehicles, and cathedrals; from earthquakes, tsunamis, and storms to quarks, DNA, and black holes, physics aids us in understanding the workings of the world around us.
The science of physics is the most fundamental and has many applications in contemporary technology. Because it makes it possible for smartphones, computers, televisions, watches, and many other modern technologies to function automatically, physics is crucial to modern technology.
To learn more about physics please visit-
https://brainly.com/question/14338730
#SPJ9
1.The
across each resistor is
the same in a series circuit.
) voltage
current
Answer:
The answer is Current.
Explanation:
In a series circuit, every component will have the same current.
In parallel circuit, all voltage of component remains the same.
Answer:
In a series circuit, each resistor has the same charge flowing through it.
Explanation:
If you have resistors arranged in a chain, the current only has one path to take which results in an equal charge in each resistor.
Predict what will happen to the disk of an uncharged electroscope when a positively charged obsject is brought near the disk.
I said: All of the positive charges in the disk will move towards the vanes in the electroscope, being repelled by the similarly charged obsject. When a positively charged object is brought near the uncharged disk of an electroscope then the positive charges attract the negative charges from the disk and repel positive charges from the disk. So, the unchaged disk will become positively charged.
QUESTION: Continue your previous answer so that you describe what happens to the charge in the other parts of the electroscope. Use this to infer what happens to the vanes.
When a positively charged object is brought near an uncharged electroscope, the vanes will move apart due to the separation of charge within the electroscope.
As the positive charges in the disk are repelled by the positively charged object and move towards the vanes, the negative charges in the disk are attracted to the positively charged object and move towards it. This creates a separation of charge within the electroscope, with the disk becoming positively charged and the vanes becoming negatively charged. As a result, the vanes will repel each other and move apart. This movement of the vanes is an indication of the presence of charge in the electroscope.
More charge questions can be found here: https://brainly.com/question/30738518
#SPJ11
11. A metallic block of mass sokg exerts o pressure of ION/m² on the surface. Determine the area of contact between the block and the surface.
The area of contact between the block and the surface is 50 m².
What is mass?A body's mass is an inherent quality. Before the discovery of the atom and particle, it was widely considered to be tied to the amount of matter in a physical body.
The measure of matter in a particles or object is represented by the dimensionless quantity mass (symbolised m). The kilogramme is the International System's (SI) preferred unit of mass (kg).
What is pressure?Pressure is defined as force applied on a body per unit area. Pressure is the force perpendicularly applied to an object's surface per unit area over which that force is distributed. Gauge pressure is the pressure in relation to the outside pressure. There are many different units used to express pressure.
Equation :Given,
mass(m) = 50kg
pressure (p) = 10N/m²
Taking,
g= 10 m/s²
p= mg/A⇒ 10= 50 × 10/A∴
A= 500/10 = 50 m²
To know more about pressure, visit :
brainly.com/question/28012687
#SPJ1
What is curved space?
A 50-kg ice skater turns a bend at 7 m/sec. If the radius of the curve is 5 m, what is the centripetal force in Newtons provided by the friction between the blade of the skate and the ice?
The centripetal force in Newtons provided by the friction between the blade of the skate and the ice is 490 N
How do i determine the centripetal force?The following data were obtained from the question:
Mass of ice skater (m) = 50 KgVelocity (v) = 7 m/sRadius (r) = 5 metersCentripetal force (F) =?The centripetal force can be obtained as illustrated below:
F = mv²/r
= (50 × 7²) / 5
= (50 × 49) / 5
= 2450 / 5
= 490 N
Thus, we can concluded that the centripetal force is 490 N
Learn more about centripetal force:
https://brainly.com/question/14021112
#SPJ1
HELPPPPP MEE
LATE SCIENCE WORK
The true statement about the motion of the helicopter is " the helicopter travels at a greater speed between D and E than it did between A and B.
option D.
What is motion?
Motion is the process of an object changing its position with respect to a reference point over time. It involves the movement of an object from one point in space to another.
Motion can be described in terms of its speed, direction, and acceleration. Speed refers to the rate at which an object is moving, while direction refers to the path that the object is following. Acceleration refers to the rate at which an object's speed or direction changes.
v = Δx / Δt
where;
Δx is change in positionΔt is change in timeThe change in position of the helicopter between A and B = 0
because, A = 100 m and B = 100 m
so the speed of the helicopter between A and B = 0 m/s.
Thus, the last statement is the only correct option,
Learn more about motion here: https://brainly.com/question/25951773
#SPJ1
estimate the radiation pressure due to a 100- w bulb at a distance of 5.0 cm from the center of the bulb. assume that light is complitely absorbed.
The radiation pressure due to 100w bulb at a distance of 5.0cm from the center of the bulb is \(1.06*10^{-5} N/m^{2}\)
Radiation pressure is the mechanical pressure exerted on any surface due to momentum exchange between an object and an electromagnetic field. It includes pulses of light or electromagnetic radiation of any wavelength that are absorbed, reflected, or emitted by matter of any size.
Calculation :
power out put of the bulb p' = 100 W
distance of the finger from the bulb \(r = 5.0*10^{-2}\)
the radiation pressure is P = I/c ............. (1)
but intensity I = p'/A
so , eq (1) becomes
P = p'/Ac .................. (2)
here, speed of light \(c = 3*10^{8}\)
area \(A = 4\pi r^{2}\)
\(= (4)*(3.14)*(5.0*10^{-2}m )^{2}\)
\(= 314*10^{-4}\)\(m^{2}\)
substitute the given data in eq (2) , we get
radiation pressure P = p'/Ac
\(= (100 W)/(314*10^{-4}m^{2} )(3*10^{8}m/s )\)
\(= 1.06*10^{-5} N/m^{2}\)
Learn more about Radiation pressure here :-
https://brainly.com/question/29899039
#SPJ4
The picture shows two different species of mammals that use wings to glide among tree tops. However, scientists theorize that these mammals are not closely related.
Which best explains why these two animals look so similar if they are not closely related?
They have analogous structures that developed for different functions.
They have homologous structures that developed for different functions.
They live in similar environments and have analogous structures adapted to them.
They live in similar environments and have homologous structures adapted to them.
Answer:
c
Explanation:
Answer:
c
Explanation:
csCA
basic source of magnetism is a) charged particles alone b)Movement of charged particles c) Magnetic dipoles d)magnetic domains
Answer:
C . Magnetic dipoles is the correct
Answer:
b). movement of charged particles.
Explanation:
These charges create the nagnetic dipoles.
A a healthy diet and exercise have an impact on the overall health of
the body. While your digestive and respiratory systems seem very
separate in their activities, in reality, the systems work together in
several ways. Which of these correctly pairs a body system with it's
function? All BUT ONE may apply.
Answer:
This would be answer choice A
The digestive system breaks large nutrient molecules into smaller ones that are absorbed into the bloodstream. So, the correct option is A.
What is meant by metabolism ?Metabolism is defined as the mechanism of the body by which the energy is produced from the food we eat, through some chemical reactions.
Here,
The overall proper health of the body is attained through having proper diet and regular exercise. In order to maintain the health, several physiological activities occurs in our body simultaneously.
Metabolism is one of the main physiological mechanism in our body, by which the food we eat is being converted into energy which is necessary for the growth and proper functioning of our body cells and organs.
Digestion is the important process of metabolism.
Digestion is the process by which the large, insoluble food molecules we consume, are broken down into smaller, water-soluble molecules, so that it can be easily absorbed into the blood plasma.
The different steps of digestion are ingestion, propulsion, mechanical digestion, chemical digestion, absorption and defecation.
Hence,
The digestive system breaks large nutrient molecules into smaller ones that are absorbed into the bloodstream.
To learn more about metabolism, click:
https://brainly.com/question/21881098
#SPJ2
What is the best description of realistic fiction o texts that are written in first person about a period in an author's life?
An autobiography, like a memoir, is the writer's recounting of his or her life and is written in the first person, making the writer the protagonist of the narrative.
What phrase best sums up a realistic piece of fiction?Contemporary/Realistic: In order to accurately portray our environment and society, realistic fiction develops fictional people and circumstances. Growing up and dealing with social and personal issues are the main themes. Characters in this genre are depicted as they learn about both themselves and others.
Which of these two realistic fiction subgenres predominates?Historical and contemporary fiction make up realistic fiction's two subgenres. Unlike current fiction, which takes place in the present or recently past, historical fiction takes place at a period that is far enough back in history to be deemed history.
To know more about realistic piece of fiction visit:-
https://brainly.com/question/29587655
#SPJ4
Answer: the answer is b
Explanation:
edge
If a dolphin swims at 1.85 m/s, how far will the dolphin have traveled after 6.0 s?
The distance traveled by by the dolphin is determined as 11.1 m.
What is distance?The distance traveled by an object is the product of speed and time of motion of the object. It measures the total path covered by the object.
The distance traveled by by the dolphin is calculated as follows;
Distance = speed x time of motion
Distance = 1.85 m/s x 6 s
Distance = 11.1 m
Thus, the distance traveled by by the dolphin is determined as 11.1 m.
Learn more about distance traveled by an object here: https://brainly.com/question/28032639
#SPJ1
The speed of sound is measured to be 340 m/s on a certain day.
What is this in Kilometers per hour?? s/km/h=
Please help and explain how to do these types of problems in very confused!!!
Help pleaseeeeeeeeeeeeee
Answer:
hello the answer is 47m/s
Which correctly describes a different evolutionary stage of a star like the sun?
A) it’s forms from a cold, dusty molecular cloud
B) During a yellow giant stage, it burns carbon in its core and helium in the shell surrounding the core.
C) After leaving the main sequence, its core is stable due to electron degeneracy
D) It becomes a white dwarf after exploding as a supernova
E)During a red giant stage, its core contracts and cools
Answer:
Explanation:
The correct option that describes a different evolutionary stage of a star like the sun is:
D) It becomes a white dwarf after exploding as a supernova
This is because a star like the sun does not have enough mass to undergo a supernova explosion. After it has exhausted all the fuel in its core, it will evolve into a red giant and then a planetary nebula, leaving behind a small, hot, dense remnant known as a white dwarf. Supernovae occur in much more massive stars that have cores that can collapse to form a neutron star or black hole.
Question 2 of 10
Which of the following represents a beta particle?
O A. e
OB. Y
O C. a
O D. He
27. The number of coils of wire through which a bar magnet is moved is increased. The
amount the needle on the meter is deflected
A. increases
B. decreases
C. shows no change
D. does not move at all
The amount the needle on the meter is deflected A. increases
This phenomenon can be explained by Faraday's law of electromagnetic induction. According to this law, when a magnetic field (created by the bar magnet) passes through a coil of wire, it induces an electric current in the wire. This induced current generates its own magnetic field, which interacts with the magnetic field of the bar magnet.
The deflection of the meter needle is a result of this induced current. When the number of coils of wire is increased, there is a greater number of wire loops for the magnetic field to pass through. This leads to a stronger induction of electric current, resulting in a larger deflection of the meter needle.
By increasing the number of coils, more magnetic flux is linked with the wire, resulting in a higher induced electromotive force (emf) and a greater current. This increased current produces a stronger magnetic field around the wire, leading to a larger deflection on the meter. Therefore, increasing the number of coils of wire enhances the magnetic field interaction, resulting in an increased deflection of the meter needle. Therefore, Option A is correct.
Know more about Faraday's law here:
https://brainly.com/question/1640558
#SPJ8
two boxes of masses m and 2m are in contact with each other on a frictionless surface. (see fig. 4-3.) what is the acceleration of the more massive box?
the acceleration of the more massive box is = F/3M.
What is the formula for acceleration?This equation a = v/t denotes acceleration (a), which is the velocity that changes (v) over the time period (t).
What three forms of acceleration are there?The three main types of accelerated motions are uniform acceleration, quasi acceleration, and average acceleration.The motion in which an item moves inside a straight line while increasing in velocity at regular intervals is referred to as uniform acceleration.
To know more about acceleration visit:
https://brainly.com/question/12550364
#SPJ4
which of the following will increase if the voltage in a circuit is increased ?
a) power.
b)length of all the wire in the circuit.
c) current
d) resistance
check all that apply
Answer:
C
Explanation:
the current will increase
steph drops a basketball from a height of 2 meters. the ball hits the floor and bounces back up to a maximum height of 1.7 meters. which of the following statements are correct? (select all that apply, check definitions for options) - the kinetic energy of the basketball is not conserved - the kinetic energy of the basketball is conserved - the momentum of the basketball is conserved - the momentum of the basketball is not conserved
Elastic collisions are collisions that conserve both momentum and kinetic energy.
What is conservation of momentum and kinetic energy?Momentum is always conserved, whereas kinetic energy is not. Kinetic energy can be converted to other types of energy, but total momentum in a system never changes.The laws of energy and momentum conservation are among the most important and useful principles in physics. The law of conservation of momentum states that if no net external forces act on a system of bodies, the total momentum remains constant at all times (it is conserved).In elastic collisions, both momentum and kinetic energy are conserved. Assume two similar trolleys are traveling at the same speed toward each other. They collide and bounce off each other at full speed. Because no energy was lost, this collision is perfectly elastic.So here, the kinetic energy of the basketball is conserved and the momentum of the basketball is conserved.
To learn more about kinetic energy refer to :
https://brainly.com/question/7221794
#SPJ4
One hundred turns of (insulated) copper wire are wrapped around a wooden cylindrical core of cross-sectional area 5.87 × 10-3 m2. The two ends of the wire are connected to a resistor. The total resistance in the circuit is 14.9 Ω. If an externally applied uniform longitudinal magnetic field in the core changes from 1.93 T in one direction to 1.93 T in the opposite direction, how much charge flows through a point in the circuit during the change?
Answer:
The amount of charge that flow through a point is \(\Delta q = 0.126 \ C\)
Explanation:
From the question we are told that
The number of turns is \(N = 100\)
The area is \(A = 5.87 *10^{-3} m^2\)
The total resistance is \(R = 14.9 \ \Omega\)
The magnetic field in first direction is \(B_1 = 1.93 \ T\)
The magnetic field in second direction is \(B_2 = -1.93 \ T\)
The change in magnetic field is evaluated as
\(\Delta B = B_1 - B_2\)
substituting values
\(\Delta B = 1.93 - [- 1.93]\)
\(\Delta B =3.2 \ T\)
The induced emf due to the change is mathematically evaluated as
\(e = NA \frac{\Delta B }{\Delta t }\)
This can also be mathematically represented as
\(e = IR\)
Where I can be mathematically represented as
\(I = \frac{\Delta q }{\Delta t}\)
So
\(e = \frac{\Delta q}{\Delta t } R\)
Now
\(\frac{\Delta q}{\Delta t } R = NA \frac{\Delta B }{\Delta t }\)
=> \(\Delta q = \frac{N A (\Delta B)}{R}\)
substituting values
\(\Delta q = \frac{100 * 5.87 *10^{-3} (3.2}{14.9}\)
\(\Delta q = 0.126 \ C\)
n unit-vector notation, what is the torque about the origin on a particle located at coordinates (0, −4.0 m, 3.0 m) if that torque is due to (a) force F1 with components F1x = 2.0 N, F1y = F1z = 0, and (b) force F2 with components F2x = 0, F2y = 2.0 N, F2z = 4.0 N?
n unit vector notation, -22j is the torque about the origin on a particle located at coordinate (o, -4.0m, 3.0m)
Torque is defined as the force that can cause an object to rotate along an axis is measured as torque. Estimate the angle between the vector connecting the force's application point and the pivot point and the direction of the applied force. You may calculate the torque by multiplying r by F and sin.
T=R (distance) x F (Force)
R=-4j+3k
F=2J
Hence, t= R x F vector product
=(-4j+3k)x2j
=-4x2x(y x J)
=+3x2y(k x r)
=-8x(-k)+6j
=(6j+8k) nm
b) F^2=2J+4K
Hence, t=r x f^2
=(-4j+3k)x(2j+4k)
=0-16( J x k)+6(K x J)+0
=-16j-6j
=-22j
To learn more about vector notation
https://brainly.com/question/28564974
#SPJ4
What are 2 factors that affect gravity? *
Electromagnetic induction occurs when
a.
b.
a conductor is moved through a magnetic
a magnet is connected to an electrical circ
electrons are rubbed from one object onto
electrons flow from one chemical to anoth
C.
d.
your hd
Answer:
A
Explanation:
occurs when a magnetic feild and an elctric conductor move relative to one another
Where Is Earth's heat energy most concentrated?
A
The mantle
B
The lithosphere
С
The core
D
The crust
Answer:
C. the core
Explanation:
since it has the most energy and the hottest layer