Explanation:
The volume occupied by one mole of a substance (especially of a gas) is molar volume.
Hope it will help :)❤
a beam of electrons is sent horizontally down the axis of a tube to strike a fluorescent screen at the end of the tube. on the way, the electrons encounter a magnetic field directed vertically downward. the spot on the screen will therefore be deflected:
As a result, when seen from the electron source, the spot on the screen will be deflected to the right.
What does the electron source in the electron microscope mean?The scanning electron microscope ( sem (TEM), the first type of electron microscope, produces images of the specimen by illuminating it with a high voltage electron beam. An electron gun is used to create the electron beam; typically, the electron source is a tungsten filament cathode.
On what basis do you produce electrons?Both high-energy collisions, such as those that occur when cosmic rays penetrate the atmosphere, and the beta decay or radioactive isotopes can produce electrons. The name "positron" refers to the electron's antiparticle, which is essentially the same as the electron with the exception that it has electrical charge that is in the opposite direction.
To know more about generate electrons visit:
https://brainly.com/question/29107810
#SPJ4
Three systems of two charged particles are shown below. All the particles have the same mass,
and all are initially at rest. In System X, two positive charges are separated by distance d.
System Y is similar, but one of the charges is negative. In System Z, both charges are positive,
but one has twice the charge of the other and the distance between the charges is double that of
Systems X and Y. When the particles are released, they accelerate until all the electrical
potential energy is converted to kinetic energy.
System X-9
+
Systemy -
-
2d
System z 9
+29
Rank the systems from the one with the greatest final kinetic energy to the one with the least
final kinetic energy?
A. X=Z>Y
B. X>Z>Y
C. X=Z=Y
D. X=Y>Z
Answer:D
Explanation:
* An 10 kg box is sitting on a fairly smooth surface. Friction is still present. The coefficient of static friction
is Hs = 0.25 and the coefficient of kinetic friction is pk = 0.15. If you exert a force of 25 N, determine if
the object is moving and if so calculate the acceleration of the object
Which statement describes a characteristic of an experimental design that
will improve the quality of the results?
i need help for physics this is due todayyyyy
Answer
you need to give the speed (velocity)
Explanation:
with the speed given you input that into d= v*t
you know one hour or 60 minutes or 3600 seconds which are all equivalent and you can use any as the units need to be the same to do any equation and multiply that by the speed that you have already
for the u.s. as a whole, thunderstorm activity is most intense in month
The month in which the United States experiences the highest level of thunderstorm activity is July.
The United States is a vast country with a diverse climate, and thunderstorm activity varies across different regions and seasons. However, on average, thunderstorm activity is most intense in the month of July across the entire country.
This is primarily due to the fact that July is the warmest month of the year in most regions, with high temperatures and high humidity levels creating unstable atmospheric conditions that are favorable for thunderstorm development.
In addition, the peak of the Atlantic hurricane season typically occurs in late summer, which can also contribute to increased thunderstorm activity in coastal regions. While thunderstorm activity can occur at any time of year, July tends to be the month when thunderstorms are most frequent and most intense across much of the United States.
To know more about thunderstorm activity, refer here:
https://brainly.com/question/8589415#
#SPJ11
How many times has the Sun orbited around the Milky Way since the Sun first formed, if the Sun makes one orbit every 231 million years
Answer:
It would depend on the amount of years.
Explanation:
I don’t think this is very helpful-
Have a great day!
Anygays-
the product of a force and the perpendicular distance from the force's line of action to the axis of rotation is known as
The product of a force and the perpendicular distance from the force's line of action to the axis of rotation is known as Torque.
Torque or moment of the force is the term used to describe a force's ability to turn.
The moment arm is the length that separates the line of action perpendicular to the axis of rotation. Torque is a mathematical combination of force F and moment arm L. Torque is equal to F times L. The moment arm affects torque. The torque will create more of an increase the longer the moment arm.
The line of action of a force is the path it travels when exerting its power.
The moment arm of the force is the length that separates the force's path of action from its axis of rotation perpendicularly.
The newton meter is the torque SI unit (Nm). A force of 1 N operating perpendicular to the moment arm's length of 1 m produces a torque of 1 N m.
Learn more about torque here:
https://brainly.com/question/29024338
#SPJ4
what are the effects on the brain if you use this opioid
Answer:
Anxiety. Depression. Hypoxia, or lack of oxygen supply. Hyperalgesia, or sensitivity to pain.
Find the force required to do 25 joule work when the force causes a displacement of 0.5m
Answer: Force required to 25 joule work when the force causes a displacement of 0.5m is 50N
Explanation: To calculate the work done we use the formula
W=F.s (1)
W= work done
F= force applied s= displacement
Given, work done W= 25 joules= 25 J
displacement s= 0.5m
∴From equation (1) we get the force required when work is done and displacement is given, that is
F\(=\frac{W}{s}\) (2)
∴Force required \(F=\frac{W}{s}= \frac{25J}{0.5m}=50N\)
(1 J is the work done by a force of 1 N acting over a displacement of 1 m and so 1 J= 1 Nm⇒ 1 N = 1 J/m)
ANS: Force required to do 25 J work when a force causes displacement of 0.5m = 50 N
Related problem on work and force
https://brainly.com/question/486298
#SPJ4
Seeing light coming out from a crack in the wall is what type of wave interaction?
A. Reflection
B. Refraction
C. Diffraction
D. Resonance
Answer:
C
becuase its where a wave (light etc) goes through a narrow area or across an edge of an area
Fill in the appropriate word or term for the following statements.
a. -150 mV
b. Voltage-gated
c. resting
d. super- depolarization
e. +30 mV
f. +15 mV action
g. action
h. close
i. open
j. hyperpolarization
1. Voltage-gated K -50 mV channels remain open, causing a ___________of the membrane. The membrane is now in its relative refractory period.
2. The membrane is at the____________ potentials occasionally generating graded potential. open
3. Voltage-gated K channels____________and the resting potential of the membrane is restored.
4. At about ____________voltage-gated Na* channels are inactivated, and voltage-gated K channels open. Kt exits the cell and repolarizes the membrane. At this time, the membrane is in its absolute refractory period.
close
5. An action potential is triggered when the threshold potential of about____________ is reached. Voltage-gated Na+ channels open. Na* diffuses into the cell and depolarizes the membrane.
Answer:
1 j
2 C
3 H
4E
5A
Explanation:
the magnetic flux density of a given conductor is 3.6T. Given that the conductor generates 12.9N and has a length of 10cm, calculate the current being carried
Answer:
i = 5.28 A
Explanation:
The magnetic force is given by the expression
F = i l x B
the bold letters indicate vectors, let's write the modulus of that expression, where the direction between the conductor and the magnetic field is 90º, therefore the sine 90 = 1
F = i l B
i = F / l B
let's reduce the length to the SI system
l = 10 cm (1m / 100 cm) = 0.10 m
let's calculate
i = 12.9 / 0.1 3.6
i = 5.28 A
A doctor is using a treadmill to assess the
strength of a patient's heart. He sets the
1,75 m long treadmill to an incline of 17 degrees.
How high is the end of the treadmill raised?
a 0.71 m
0.46 m
0.54 m
0.62 m
The answer is 0.47 m, which is closest to the option (A) 0.71 m.
How to solve this problemFirst we can use trigonometry. The height of the end of the treadmill raised is the opposite side of the right triangle, and the length of the treadmill is the hypotenuse.
The angle of inclination is the angle between the height and the hypotenuse, so we can use the sine function to find the height:
sin(17°) = opposite/hypotenuse
The length of the treadmill is 1.75 m, so:
opposite = sin(17°) x 1.75 m
opposite = 0.472 m
Therefore, the height of the end of the treadmill raised is approximately 0.47 m.
So the answer is 0.47 m, which is closest to the option (a) 0.71 m.
Learn more about trigonometry here : brainly.com/question/20519838
#SPJ1
Given the exciton energy is 0.01eV and energy gap of Germanium (Ge) is about 0.75 eV. Determine the energy of photon involved in exciton absorption in Ge. Using the absorption intensity versus photon energy diagram, briefly explain the effect of exciton absorption on the absorption spectrum of Ge.
The energy of photon involved in exciton absorption in Germanium (Ge) is approximately 0.76 eV.
The energy of photon involved in exciton absorption in Germanium (Ge) is approximately 0.76 eV. This can be calculated using the formula E_photon = E_gap + E_excitonwhere E_photon = energy of photon,E_gap = energy gap of Ge, andE_exciton = exciton energy.Substituting the given values we have;E_photon = 0.75 eV + 0.01 eVE_photon = 0.76 eVThe effect of exciton absorption on the absorption spectrum of Ge is the appearance of a new peak or band.
The exciton absorption band is usually narrower than the band for the direct interband transition because of the localization of electron and hole pairs. As the temperature is raised, the absorption coefficient for the exciton peak decreases and broadens due to the thermal dissociation of excitons.
To know more about photon visit:
https://brainly.com/question/33017722
#SPJ11
The following data is available for BOX Corporation at December 31, 2017: Common stock, par $10 (authorized 30000 shares) $270000 Treasury stock (at cost $15 per share) $1200 Based on the data, how many shares of common stock are issued
The number of shares of common stock issued by BOX Corporation is 29,920.
Based on the given data, we can determine the number of shares of common stock issued by BOX Corporation.
The authorized number of shares does not provide information about the actual number of shares issued. Instead, we need to consider the treasury stock.
Treasury stock represents shares of a company's own stock that it has repurchased from the shareholders. Therefore, treasury stock is not considered as issued shares.
To calculate the number of shares of common stock issued, we subtract the number of treasury stock shares from the authorized shares:
Number of shares issued = Authorized shares - Treasury stock shares
Given:
Authorized shares = 30000
Treasury stock shares = $1200 (cost) / $15 (cost per share) = 80 shares
Number of shares issued = 30000 - 80 = 29920
Know more about number of shares here:
https://brainly.com/question/31391322
#SPJ11
How do you use a Beam Balance???
Your answer is in the attachment . Hope this helps.
What is the amount of heat required to turn 2kg of ice into water at 80°
(4.2×10^3)specific heat capacity of water
(3. 34×10^5) specific heat latent of fusion ice
Explanation:
Sorry if I toke a while (needed to finish some work) but here you go!!! :D.
An electric car is 85% efficient. The electricity for the car is supplied by a coal power station with an efficiency of 35%. Determine how much energy is needed from the chemical energy store of the coal for the car to provide 100 J of useful energy.
Use the formulas below to match the number to how many of each element are present. (i.e. There are 2 Aluminum and 3 Oxygen present in Aluminum oxide Al2O3)
Bromine: Br2
Lithium Sulfide: Li2S
Silicon Hydride: SiH4
Magnesium Phosphide: Mg3P2
Sodium Carbonate: Na2CO3
PLEASE HELP!! And PLEASE be accurate!!! Thank you very much!!
Alumunium has an atomic number (Z) of 13 So, its electronic configuration is [Ne] 3s2 3p1 Hence, it needs to lose 3 electrons to attain stable configuration, hence its valency is three. Oxygen has an atomic number (Z) of 18 So, its electronic configuration is [He]2s23p1.
How many oxygen molecules does Al2O3 exist?This formula's subscripts (2 and 3) indicate how so many atoms will make up each unit of a compound.The 2 denotes the presence of two aluminum atoms and the 3 denotes the presence of three oxygen atoms.
How many atoms and elements are there in the formula al2 co3 3?So there's also aluminum, plus carbon now and nine oxygens.Therefore, the sum of the atoms is two + three plus nine, which equals 14.In the formula given after the molecule, there are therefore 14 atoms.The issue has now been resolved.
To know more about atomic number visit:
https://brainly.com/question/18460120
#SPJ1
In a television tube the picture is formed by streams of electrons hitting the screen. The current is 20 mA. How much electric charge hits the screen in 30 minutes?
Answer:
Quantity of charge = 36 Coulombs.
Explanation:
Given the following data;
Current = 20 mA = 20/1000 = 0.02 Amperes
Time, t = 30 minutes to seconds = 30 * 60 = 1800 seconds
To find the quantity of charge;
Quantity of charge = current * time
Quantity of charge = 0.02 * 1800
Quantity of charge = 36 Coulombs.
Eli and Andy want to find out which of the two is stronger. Eli pushes a table with a force of 120 newtons while Andy pushes the table from the opposite side with a force of 125 newtons. Ignoring the masses of Eli and Andy, what is the resultant acceleration of the table if its mass is 10.0 kilograms?
Answer:
a = 0.5 m/s²
Explanation:
the type of problem is called a Newtons second law of motion.
and the equation would be the sum of F = m * a where m = mass and a = acceleration
forces are 125N and the opposite direction is 120N
Eli pushes the table with a force of 120N towards Andy
and
Andy pushes the table with a force of 125N towards Eli
mass of table given as 10 kg.
using the equation
120N - 125N = 10kg * a
a = (120-125) / 10
a = -0.5 m/s² so the acceleration is in the direction of Andy's force towards Eli.
therefore a = 0.5 m/s²
Answer:
B.
0.50 meters/second2
Explanation:
2. A nylon cord has original length of 210 cm is pulled by a force. The change
in length of the cord is 3.25 mm. Determine the strain!
A quarterback back pedals 2.1 meters northward and then runs 7.4 meters southward
What is the magnitude and direction of the displacement
Answer:
-5.3 m
Explanation:
Consider north to be the positive direction, and south to be the negative direction. Adding up the displacements gives
(+2.1m) + (-7.4m) = 2.1 - 7.4m = -5.3m (southward direction)
This makes sense because if he travels 2.1 m north, then 7.4 south, he would end up south of where he started because he passed 2.1 m and went further
Weight of the drum is 1500 N and coefficient of static friction is 0.5 for all contact surfaces. Find the magnitude of the force Q for which the drum just starts spinning.
This question involves the concepts of frictional force and weight.
The magnitude of the force Q for which the drum just starts spinning is "750 N".
MAGNITUDE OF FORCE QThe magnitude of force required must be equal to the frictional force between the drum and contact surface:
Q = μR
where,
Q = magnitude of required force = ?μ = coefficient of static friction = 0.5R = Normal Reaction = Weight of drum = 1500 NTherefore,
Q = (0.5)(1500 N)
Q = 750 N
Learn more about frictional force here:
https://brainly.com/question/1714663
The angular velocity ω as a function of time t of a point on a rotating wheel is given by ω(t) = -(b)sin(ct] where b and c are both constants.The point is located at angular position +d at time t = 0. Calculate the angular position as a function of time, θ(t).
The given expression for angular velocity is ω(t) = -(b)sin(ct). Therefore, the angular velocity, ω(t) is a function of time t given by the above equation. Here, b and c are both constants.
Explanation:
Let θ be the angular position of the rotating wheel as a function of time t. Then we have:ω = dθ/dt. Thus, we can write the above equation in the following form:
dθ/dt = -(b)sin(ct)
We can integrate both sides of the equation with respect to time t to obtain the angular position θ as a function of time t. This gives ∫dθ = -∫(b)sin(ct)dtθ = (b/c)cos(ct) + K where K is the constant of integration. To determine the constant K, we need to use the given information that the point is located at angular position +d at time t = 0.
This gives θ(0) = (b/c)cos(0) + K = d. Therefore, K = d - (b/c)cos(0) = d - (b/c)
Thus, the angular position as a function of time is given by:θ(t) = (b/c)cos(ct) + (d - (b/c)). Hence, the correct option is,
(d - (b/c)) + (b/c)cos(ct).
To know more about the angular position, visit:
https://brainly.com/question/13860704
#SPJ11
18/5 kmph into m/s (velocity)
By dimensional analysis
Answer: 1 m/s
Explanation: 1 km = 1000 m (1 kilometer is equal to 1000 meters)
1 hour = 3600 seconds (1 hour is equal to 3600 seconds)
a 1.8-kg mass attached to a spring oscillates with an amplitude of 9.3 cm and a frequency of 2.8 hz.
The frequency is 5.9 jules.
we have been given that the mass is equal to 2.4 kgs and the amplitude others 9.3 and returned to the power -2 m. Yeah. So he can write The angular frequency is two pi f. That is To buy into 3.8 Hz. That is equal to 23.87. Ready for a 2nd. Now to find the first concert,
we can write Omega Square. Um that is 23.87 reading perspective, but you didn't one second. We square this into 2.4 gauges. That is equal to 1,36, newtons per meter. How to find the total energy we laid half. Okay, A square that is equal to one by two and 21368.26 into 9.3 to 10 to the minus two squared. That is equality 5.9 Jules.
To know more about frequency click-
https://brainly.com/question/254161
#SPJ1
Which term refers to the distance light travels in a year and is used to measure HUGE distances, like the ditance of planets from the sun?
A: radiant-year
B: electromagnetic-year
C: solar-year
D: light-year
Answer:
D
Explanation:
Well, light travelling in a year is a light year.
Answer:
D: Lightyear
Explanation:
One lightyear (ly) is the distance traveled by light in year time.
It is equal to \(9.46 * 10^{15} \ m\).
A mass m is at a height h above the surface of a planet of mass M and radius R.
The gravitational field strength at height h is g. By considering the gravitational force acting on mass m, derive an equation from Newtor's law of gravitation to express g in terms of M, R, h and the gravitational constant G.
Answer:
Explanation:
Given:
m - mass
h - height
M - mass of the planet
R - planet radius
G - Gravity constant
_________
g - ? Acceleration of free making
Newton's law of universal gravitation:
F = G·m·M / (R +h)
g = F / m
g = G·M / (R +h)