Answer:
The magnetic force on a moving charged particle is given by the Lorentz force law, which states that the force is equal to the product of the particle's charge, its velocity, and the magnetic field. Since the magnetic field points in the positive y direction and the velocity of the electrons is in the positive x direction, the magnetic force on the electrons will point in the negative z direction (assuming we are using the right-hand rule to determine the direction of the force). The magnitude of the force can be found using the formula above: F = q * v * B, where q is the charge on the electrons, v is their velocity, and B is the strength of the magnetic field. The charge on an electron is -1.6 x 10^-19 C, so the magnitude of the force on the electrons will be: F = (-1.6 x 10^-19 C) * (4.6 x 105 m/s) * (2.8 T) = -2.19 x 10^-13 N.
Why does a watched pot never boil?
I am ion with 17 protons, 18 neutrons, and 18
electrons. Who am I and what is my charge?
Element Name:
Symbol and Charge (include + or - sign)
Am I a Cation or Anion? Explain.
If I see H+1 (hydrogen ion, charge + 1), will i
bond with her? Explain your answer
Pls show work
Answer:
chloride, ion, -1, this is an anion
cart is sliding across a horizontal floor. It has a mass of 25 kg and a force of 250 N. Using Newton's second law, a = F ÷ m, what is the acceleration of the cart?
0.1 m/s2
5 m/s2
10 m/s2
25 m/s2
Answer:
10m/s2
Explanation:
250/25=10
Which one of the following is the longest length?
(a) 100 m
(b) 104 µm
(c) 107 nm
(d) 102 mm
Okay, let's convert all the lengths to the same unit to compare:
(a) 100 m = 100 meters
(b) 104 μm = 104 micrometers = 104 × 10^-6 meters = 0.000104 meters
(c) 107 nm = 107 nanometers = 107 × 10^-9 meters = 0.000000000997 meters
(d) 102 mm = 102 millimeters = 102 × 10^-3 meters = 0.0102 meters
The longest length is:
(a) 100 m = 100 meters
The answer is option (a).
Answer: 100 m
Explanation:
1 μm = \(10^{-6}\) m = 0,000001 m
1 nm = \(10^{-9}\) m = 0,000000001 m
1 mm = \(10^{-3}\) m = 0,001 m
∴ 100 m es la mayor longitud
4. While cleaning your bedroom, you move your mattress to vacuum underneath your bed. You use a force of 48 N to move the mattress 1.5 meters out of the way. How much work was done?
Answer:
72 J
Explanation:
Use the Work formula
W= F x d
Given:
F - 48 N
d - 1.5 m
Solution:
W= F x d
W= 48 N x 1.5 m
W= 72 J
a 40 g superball strikes a wall with a velocity of 10 m/s that is normal to the wall. it bounces away at a velocity of 7 m/s, still normal to the wall. what is the ball's change in momentum? if the bounce lasted 0.1 s, what is the force between the ball and the wall?
The momentum of the ball in motion is -0.68 kg m/s, and the force between the ball and the wall is -6.8 N.
What is momentum?The state of motion of an object with a certain mass is termed as momentum. It is the product of the mass and velocity of the moving object and is a vector quantity.
It is expressed as: p = m × v
First, let's calculate the initial momentum of the ball before it strikes the wall:
p₁ = m₁× v₁ = 40 g × 10 m/s = 0.04 kg × 10 m/s = 0.4 kg m/s
Where m₁ is the mass of the ball and v₁ is its initial velocity.
Next, let's calculate the final momentum of the ball after it bounces off the wall:
p₂ = m₁× v₂= 40 g × (-7 m/s) = -0.04 kg × 7 m/s = -0.28 kg m/s
where v₂ is the velocity of the ball after it bounces off the wall.
The change in momentum of the ball is then:
Δp = p₂- p₁ = (-0.28 kg m/s) - (0.4 kg m/s) = -0.68 kg m/s
Note that the change in momentum is negative, indicating that the ball's momentum has decreased in magnitude and changed direction.
To calculate the force between the ball and the wall,
J = Δp
where J is the impulse and Δp is the change in momentum.
The impulse is also equal to the force multiplied by the time during which the force is applied:
J = F × Δt
where F is the force and Δt is the time during which the force is applied.
Setting these two equations equal to each other, we get:
F × Δt = Δp
Solving for the force, we get:
F = Δp / Δt = (-0.68 kg m/s) / (0.1 s) = -6.8 N
The negative sign indicates that the force exerted by the ball on the wall is directed opposite to the direction of the ball's motion, as expected.
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The change in the momentum of the ball will be 0.68kgm/sec. While the force that acts on the body will be 0.68 N.
What is momentum?The measurement of mass in motion is called momentum. Momentum is equal to its mass multiplied by its velocity. Mathematically it is given as;
Momentum = Mass x Velocity
The given data in the problem is
ball mass ( m)= 40 g=0.040 kg
speed of the ball(v) = 10 m/s
rebound speed(V )= -7 m/s
The change in the momentum of the body is given by,
ΔP = mv - mv'
Δp= 0.040 x 10 - 0.057 x (-7)
ΔP = 0.68 kg.m/s
Hence the change in the momentum of the body will be 0.68 kg.m/s.
Impulse is defined as the product of force and time interval of contact.
ΔP = force *time
force = ΔP/time
force = 0.68/1
force = 0.68
Hence the force that acts on the body will be 0.68 N.
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What exerts the thrust force acting on the cart?
Answer:
This question appears incomplete
Explanation:
The question appears incomplete. However, a thrust can be described as a force or a push. A cart can be described as a vehicle (usually with two wheels) that is used to transport load from one point/place to another.
Newton first law of motion (law of inertia) states that a body will continue to be in a state of rest or if in motion, remains in motion (at constant velocity) unless acted upon by an external force. Hence, a cart will continue to be in a state of rest unless acted on by an external force which can be exerted by animals or humans (depending on the type of cart).
2. Identify the types of relationship for each of these expressions (linear, inverse, parabolic):
Between Kinetic energy and speed
Between potential energy and mass
between pressure and volume
between pressure and temperature
between displacement and velocity
Between Kinetic energy and speed: The relationship is quadratic or parabolic. According to the kinetic energy formula, KE = 1/2 mv^2, the kinetic energy is proportional to the square of the speed.
Between potential energy and mass: The relationship is linear. The potential energy is directly proportional to the mass. In simple cases, the potential energy is given by PE = mgh, where mass (m) and height (h) are directly proportional.
Between pressure and volume: The relationship is inverse. According to Boyle's law, the pressure and volume of a gas are inversely proportional when temperature is constant. Mathematically, P1V1 = P2V2.
Between pressure and temperature: The relationship is linear. According to Charles's law, the pressure and temperature of a gas are directly proportional when volume is constant. Mathematically, P1/T1 = P2/T2.
Between displacement and velocity: The relationship is linear. Velocity is the rate of change of displacement with respect to time, so the two are directly proportional.
2) A bully is pushing a boy against a locker as shown with a force of
500N. The angle between his arms and the ground is 40°. Draw a free-body diagram of
the boy and then find the normal force between the boy and the wall.
HELP
Answer:
pull out the 9
Explanation:
Which of the following relationships is correct?
2 points
1 N = 1 kg
1 N = 1 kg·m
1 N = 1 kg·m/s
1 N = 1 kg·m/s2
What are examples of water on Earth that are part of the water cycle
In the diagram, the block is sliding at a constant velocity down a rough incline, which makes a 45 degree angle to the horizontal. Which of the following statements is NOT true?
A) The magnitude of the Net Force is equal to the magnitude of Force C.
B) The magnitude of Force A is equal to the magnitude of Force B
C) The magnitude of Force B is equal to the magnitude of Force D
D) The coefficient of friction between the block and the ramp is equal to 1.
Answer:
I haven't done physics for a while, but with the information given I don't understand how D could be correct, so I think D is your anwser
Explanation:
A small car with mass 0.610 kg
travels at constant speed on the inside of a track that is a vertical circle with radius 5.00 m
If the normal force exerted by the track on the car when it is at the top of the track (point B
) is 6.00 N
, what is the normal force on the car when it is at the bottom of the track (point A
)?
Express your answer with the appropriate units.
The normal force on the car when it is at the bottom of the track is 8.84 N.
At the top of the track (point B), the normal force (N) acting on the car is equal to the weight of the car (mg) plus the centrifugal force (mv²/r) acting outwards:
N = mg + mv²/r
where m is the mass of the car, g is the acceleration due to gravity, v is the speed of the car, and r is the radius of the track.
Since the car is traveling at constant speed, its acceleration is zero, so the centrifugal force is balanced by the force of gravity, and we have:
N = mg
Substituting the given values, we get:
6.00 N = (0.610 kg)(9.81 m/s²)
Solving for g, we get:
g = 9.68 m/s²
At the bottom of the track (point A), the normal force acting on the car is equal to the weight of the car minus the centrifugal force acting downwards:
N = mg - mv²/r
Substituting the known values, we get:
N = (0.610 kg)(9.81 m/s²) - (0.610 kg)(v²/5.00 m)
Since the car is traveling at constant speed, we can use the fact that its kinetic energy is equal to its gravitational potential energy to solve for v:
mg(2r) = (1/2)mv²
where 2r is the total distance traveled by the car (i.e., the circumference of the circle), so 2r = 2πr = 31.4 m. Solving for v, we get:
v = sqrt(2gr)
Substituting the known values, we get:
v = sqrt(2(9.68 m/s²)(5.00 m)) = 6.19 m/s
Substituting this value of v into the equation for N, we get:
N = (0.610 kg)(9.81 m/s²) - (0.610 kg)((6.19 m/s)²/5.00 m) = 8.84 N
Therefore, the normal force on the car when it is at the bottom of the track is 8.84 N.
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write a vector equation
Answer:
In general, a vector equation is any function that takes any one or more variables and returns a vector. The vector equation of a line is an equation that identifies the position vector of every point along the line. This works for straight lines and for curves.
Explanation:
1.A vector has magnitude (size) and direction:
2.a − b.
3.A vector is often written in bold, like a or b.
4.The vector a is broken up into.
5.We can then add vectors by adding the x parts and adding the y parts:
6.When we break up a vector like that, each part is called a component:
7.|a|
8.||a||
(hope this helps can i plz have brainlist :D hehe)
What is the best flowers
Answer:
What are the best flowers? (My opinion)
Water liliesWhite rosesHydrangeaExplanation:
You're welcome.
Answer:
Tulips,
Lilies,
Lotuses on my opinion...
A rough value of deceleration of a skidding automobile is about 7.0m\s^2.using this how long does it take for a car going at 30m\s to stop after the skid starts.How far dose the car go in this time??
Explanation:
Given:
v₀ = 30 m/s
v = 0 m/s
a = -7.0 m/s²
Find: t and Δx
v = at + v₀
0 m/s = (-7.0 m/s²) t + 30 m/s
t = 4.3 seconds
v² = v₀² + 2aΔx
(0 m/s)² = (30 m/s)² + 2 (-7.0 m/s²) Δx
Δx = 64 meters
#1 A boy pushes forward a cart of groceries with a total mass of 40 kg. What is
the acceleration of the cart if the net force on the cart is 60 N?
Explanation:
∑F = ma
60 N = (40 kg) a
a = 1.5 m/s²
How do bumper cars at an amusement pack demonstrate Newton’s third law?
Answer:
If two bumper cars collide with a certain force, then they will move away from each other in opposite directions with the same force. This demonstrates Newton's third law, which states that for every action, there is an equal and opposite reaction.
Explanation:
Assertion: An object will continue moving uniformly on a plane frictionless surface till the resultant force acting on it is Not Zero. Reason: The bodies do not change their state of Rest or uniform motion unless an external unbalanced force acts on it
A body continues in its state of rest until it is acted upon by an unbalanced external force.
According to Newton's first law of motion, the reason for motion is the action of unbalanced forces. A body will continue in its state of rest or uniform motion unless it is acted upon by an unbalanced external force. This law also referred to as the law of inertia.
Hence, an object will continue moving uniformly on a plane friction-less surface till the resultant force acting on it is not zero according to this law. Thus, the reason is an explanation for the assertion.
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"4.What determines how many figures are significant in reported measurement values? What
would be the effect of reporting more or fewer figures or digits than are significant?
As the number of significant figures increases, the more accurate or precise the measurement is.
What is significant figure?The term significant figures refers to the number of important single digits in the coefficient of an expression in scientific notation.
Significant figures are the digits in a value that are known with some degree of confidence.
The effect of reporting more or fewer figures or digits than are significant;
As the number of significant figures increases, the more accurate or precise the measurement is.
As precision of a measurement increases, so does the number of significant figures.
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A converging lens 7.50 cm in diameter has a focal length of 330 mm . For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of resolving power of the human eye. Part A If the resolution is diffraction limited, how far away can an object be if points on it transversely 4.10 mm apart are to be resolved (according to Rayleigh's criterion) by means of light of wavelength 600 nm
Answer:
D Is 430m
Explanation:
See attached file
please help!!!
When a switch is turned from the off to the on position, it is changing the circuit in which of the following ways? O An open circuit is being changed into a closed circuit. A closed circuit is being changed into an open circuit. O A parallel circuit is being changed into a series circuit. A series circuit is being changed into a parallel circuit.
Answer:
i Believe the correct answer is "An open circuit being changed into a closed circuit"
Explanation:
TIME REMAINING
02:21:09
Which is one characteristic shared by electromagnetic and mechanical waves?
Both have a frequency and amplitude.
Both move due to particles bumping into each other.
Both are formed by charged particles.
Both occur as a result of a disturbance.
Both types of waves, electromagnetic and mechanical, involve the transfer of energy through a mediumor through space. Option D
One characteristic shared by electromagnetic and mechanical waves is that both types of waves occur as a result of a disturbance. Waves, in general, are a means of transferring energy from one location to another without the physical displacement of particles.
Whether it's an electromagnetic wave or a mechanical wave, there needs to be a disturbance or source of energy that initiates the wave.
In the case of electromagnetic waves, such as light waves or radio waves, the disturbance is the oscillation of electric and magnetic fields. These fields interact with each other and propagate through space, carrying energy with them.
The disturbance can be caused by various sources, such as the acceleration of charged particles or the vibrations of atoms or molecules.
On the other hand, mechanical waves, such as sound waves or water waves, require a medium (substance) to propagate. The disturbance in mechanical waves is the vibration or oscillation of particles in the medium. For example, in a sound wave, the disturbance is the back-and-forth movement of air molecules caused by a vibrating object.
Both types of waves, electromagnetic and mechanical, involve the transfer of energy through a medium (in the case of mechanical waves) or through space (in the case of electromagnetic waves). They both require a disturbance to initiate the wave and share the fundamental property of wave motion. Option D
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In the sport of billiards, event organizers often remove one of the rails on a pool table to allow players to measure the speed of their break shots (the opening shot of a game in which the player strikes a ball with his pool cue).
The top of a pool table is a height ℎ=2.75 ft from the floor. If a player's ball lands a distance =16.50 ft from the table edge, what is her break shot speed 0?
The break shot speed of the player is determined as 96.5 ft/s.
Time of motion of the playeruse the following kinematic equation to determine the time of motion of the player.
h = vt + ¹/₂gt²
h = 0 + ¹/₂gt²
h = ¹/₂gt²
t = √(2h/g)
t = √(2 x 2.75/32.17)
t = 0.171 s
break shot speedvx = x/t
vx = 16.5 ft / 0.171 s
vx = 96.5 ft/s
Thus, the break shot speed of the player is determined as 96.5 ft/s.
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During your summer internship for an aerospace company, you are asked to design a small research rocket. The rocket is to be launched from rest from the earth's surface and is to reach a maximum height of 950 m above the earth's surface. The rocket's engines give the rocket an upward acceleration so it moves with acceleration of 16.0 m/s2 during the time T that they fire. After the engines shut off, the rocket is in free fall. Ignore air resistance. Assume that the acceleration due to gravity does not change with the height of the rocket.
Required:
What must be the value of T in order for the rocket to reach the required altitude?
Answer:
T = 6.72 s
Explanation:
V(1) would be the final velocity of the rocket when it's engines are fired. This V(1) is also equal to the initial velocity of the rocket if it's engines gets shut down.
Also, y(1) is the distance that will be traveled by the rocket if the engines get shut down.
see attachment for calculations.
The first is upon firing of the rocket engines
The second is when the engines are down
The third is when the engines are fired.
Curran is testing out a newly waxed hallway floor by sliding in his socks.
He runs from one end of the hallway and starts sliding midway going all
the way to the right. The forces acting on Curran as he is sliding are
represented in the diagram below. Identify the forces and match them
correctly to the numbers.
Answer:
Curran is testing out a newly waxed hallway floor by sliding in his socks.
He runs from one end of the hallway and starts sliding midway going all
the way to the right. The forces acting on Curran as he is sliding are
represented in the diagram below. Identify the forces and match them
correctly to the n
what do magnetic field lines look like when two magnets attract?
Answer:
Explanation:
If 2 magnets are attracting, then the north pole of one magnet is facing the south pole of the other. The magnetic field lines between the two magnets are connected and the direction of flow is north to south.
How much heat is contained in 100 kg of water at 60.0 °C?
Answer:
so how much heat is there at 0 C? That's zero. But for every degree above that you have 4.184 J. You take it from there. Remember q = mc*delta T.
An electromagnetic wave moves through electric and magnetic fields. How might the movement of the wave be described?
A.
The vibrations of the fields are perpendicular to the direction in which the wave moves.
B.
The wave moves back and forth through the fields.
C.
The vibrations of the fields are parallel to the direction in which the wave moves.
close
D.
The wave moves through the fields in a random motion.
A. The vibrations of the fields are perpendicular to the direction in which the wave moves.
An electromagnetic wave moves through electric and magnetic fields, and the movement of the wave can be described as the vibrations of the fields being perpendicular to the direction in which the wave moves, as in option A.
What is the significance of an electromagnetic wave?Electromagnetic waves have many applications, including the transmission of information and energy, and they are also used in other technologies such as radio, television, hospitals, wireless communications, and so on. Other different rays, such as microwaves, infrared radiation, visible light, ultraviolet radiation, etc., are used in different fields, such as X-rays for imaging, etc.
Hence, an electromagnetic wave moves through electric and magnetic fields, and the movement of the wave can be described as the vibrations of the fields being perpendicular to the direction in which the wave moves, as in option A.
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In hiking, what fitness component is required of you