If a negatively charged particle is moving to the right, the current in the wire also flows to the right, then the direction of the magnetic field will be upward due to maxwell's right-hand thumb rule.
Maxwell's Right-Hand Rule of Thumb:
Following this rule, imagine grasping a live wire with your right hand, with your thumb pointing in the direction of the current. The direction in which the finger grips the wire is the magnetic field lines around the wire. The right-hand rule used to find the direction of the magnetic field due to the current element is the direction of the magnetic field.
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8. a sports car accelerates from 0 to 27 m/s, in 6.3 seconds. the car exerts a force of 3106 n. what is the mass of the car?
A sports car accelerates from 0 to 27 m/s. The mass of the car is 732.5kg.
initial speed of a car = 0m/s
final speed of the car = 27m/s
time taken = 6.3 seconds
then acceleration is calculated as:
acceleration = velocity / time
acceleration = (27 - 0)/6.3 = 27/6.3 = 4.24m/s²
The force exerted y a car = 3106 N
as we know
F = ma
where
F = force exerted
m = mass of the body
a = acceleration of a car
F = ma
3106N = m x 4.24m/s²
m = 3106 /4.24
m = 732.5kg
A sports car accelerates from 0 to 27 m/s. The mass of the car is 732.5kg.
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a motorcycle is traveling up one side of a hill and down the other side. the crest of the hill is a circular arc with a radius of 45.0 m. determine the maximum speed that the cycle c
The maximum speed of the cycle is 21 m/s.
When the motorcyclist takes the curve on the hill, a net frictional force acts on it towards the center and acts as the centripetal force.
The radius of the hill is = 45 m
Also , the weight of the motorcycle acts downwards and the normal reaction acts upwards. As the motorcycle is on the curve so , a component of the weight acts towards the center.
weight is given by , W = mg
So the net F(friction) = mg - N = [tex]\frac{mv^{2} }{r}[/tex]
For loosing contact, N=0
[tex]v^{2}[/tex] = rg
v = [tex]\sqrt{rg}[/tex]
v = [tex]\sqrt{(45)(9.80)}[/tex]
v = 21 m/s
So the maximum speed of the motorcycle can be 21 m/s.
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A 50 liter piton cylinder device contain oxygen at 50°C and 170 kpa now the oxygen i heated until the temperature reache 77°C. What i the amount of heat tranferred during thi proce?
The amount of heat transferred is proportional to the temperature difference between the objects and the heat capacity of the object.
Warmness is based totally on the authentic story of Neil McCauley, a calculating criminal and ex-Alcatraz inmate who was tracked down by way of Detective Chuck Adamson in 1964. In 1961, McCauley was transferred from Alcatraz to McNeil, as mentioned in the film.
Considering the fact that Michael Mann's warmness got here out, he's been citing the film as a concept for the paintings he did inside the Dark Knight. Connections have been drawn among the visuals, the interrogation scene, and even solid member William Fitchner, who's in each movie.
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A clay liner and a system of pipes is used in a sanitary landfill to:
A. Prevent leakage
B. Prevent disease
C. Restore oxygen
D. Recycle waste
A clay liner and a system of pipes is used in a sanitary landfill to
a) Prevent leakage
What is sanitary landfill ?
Sanitary landfill refers to the efficient use of engineering techniques to confine waste to the smallest practical area in order to cover it with a layer of soil to reduce its volume and minimize pollution. It is a land-based method of disposal without harming the environment and public health. of air.
A landfill is a place where waste is isolated from the environment until it is safe. It is believed to be completely biologically, chemically and physically degraded. High-income countries may have higher levels of isolation achieved.
A safe landfill has critical elements: a bottom liner, a leachate collection system, a cover, and a natural hydrogeological environment. The natural environment can be chosen to minimize the potential for waste to enter the groundwater below the landfill.
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a 1.0-mm-diameter wire made of copper and iron segments carries a 4.00 a current. how much charge accumulates at the boundary between the segments?
The charge accumulated at the boundary between the segments that carries 4 A current along a 1 mm diameter wire is 2.95 * [tex]10^{-18}[/tex] C
η = q / A
η = εo I / A [ 1 / σ1 - 1 / σ2 ]
η = Charge density
q = Charge
A = Area
σ = Conductivity
I = Current
εo = Vacuum permittivity
I = 4 A
εo = 8.85 * [tex]10^{12}[/tex] F / m
σ1 = 1 * [tex]10^{7}[/tex] / Ω m
σ2 = 6 * [tex]10^{7}[/tex] / Ω m
Equating both the formulae of charge density,
q / A = εo I / A [ 1 / σ1 - 1 / σ2 ]
q = 8.85 * [tex]10^{12}[/tex] * 4 ( 1 / [tex]10^{7}[/tex] - 1 / 6 * [tex]10^{7}[/tex] )
q = 8.85 * [tex]10^{12}[/tex] * 4 * [tex]10^{-7}[/tex] ( 1 - 1 / 6 )
q = 2.95 * [tex]10^{-18}[/tex] C
Therefore, the charge accumulated at the boundary between the segments is 2.95 * [tex]10^{-18}[/tex] C
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write the differential equation of the system by the 2nd law of newton mechanics or theorem of momentum moment g
The instantaneous change in momentum brought on by something like a hammer strike is equal to the applied impulse, however the second law of newton did not state that F=ma (i.e., d2xdt2=1mF) in the Principial.
What is the second law of Newton in plain English?The modifications that a force can cause to a body's motion are quantitatively described by Newton's second law. According to this, the force acting on a body has an equal and opposite magnitude and rate of change in its momentum over time.
The third law of Newton is what?The formal formulation of Newton's third law is: There is an opposite and equal to every action. According to the statement, each interaction involves two forces acting on the interacting objects. The first object's force is equal to the size of the second object's force.
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Physics: Please Help
Answer:
6a.
7c.
8c.
9a.
10b.
11d.
Explanation:
Let me know if I made any mistakes or if you want clarification :)
A grapefruit has a weight on Earth of 4.9 newtons. What is the grapefruit’s mass?
Answer:
0.5 kg
Explanation:
W = mg
4.9 = m(9.8)
4.9 = 9.8m
4.9/9.8 = m
m = 0.5 kg
A force of 15 newtons is applied to an object with a mass of 5kilograms what will be the objects final velocity after 10 seconds
Answer:
See below
Explanation:
First, find acceleration from
F = m * a
then vf = a * t for the final velocity ...... Plug and chug
Your friend conducted an experiment in which they drop four objects from 5 meters above the
ground, and record their position every 0.1 seconds as they fall.
One object was an eight pound medicine ball, one was a golf ball, one was a frisbee, and one was a
feather.
b. Describe how would this data change, If this student had an access to the vacuum chamer and
performed this test in a vacuum?
c. The next experiment was conducted in the normal conditions (in the air). Predict whether a
feather or a golf ball would land first
a ) The slowest and fastest object are object 2 and object 1 respectively
b ) In a vacuum chamber all objects will fall at the same time
c ) In normal conditions, a golf ball would land first.
a ) From the data taken from the table,
Object 1 lands after 1.1 s
Object 2 lands after 1.8 s
Object 3 lands after 1.3 s
Object 4 lands after 1.1 s
Eventhough object 1 and 4 land at same time, at 1 s mark object 4 has more height than object 1. So object 1 would land first
b ) If conducted in a vacuum chamber, there will be no air resistance,. So all the objects will fall at the same time.
c ) In normal conditions, there will be air resistance. So air resistance will be larger in the object with larger surface area. Feather has a larger surface area than a golf ball. So feather will fall slower than the golf ball.
Therefore,
a ) The slowest and fastest object are object 2 and object 1 respectively
b ) In a vacuum chamber all objects will fall at the same time
c ) In normal conditions, a golf ball would land first.
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a block sits at a ramp with a 35 degree angle to the ground. friction has a magnitude of 41 n as it slides down the ramp with a mass of 13.2 kg. what acceleration does the block have on the ramp?
The Net acceleration of the block is 5.62104907 m/s².
Given -A block is positioned at the bottom of a ramp at a 35-degree angle. With a mass of 13.2 kg, it slides down the ramp with a coefficient of friction of 41 n.
Principle-The resistance that surfaces in contact provide to motion when they pass one another is referred to as friction. The two surfaces in contact are causing friction because of their irregularities. Therefore, these surface irregularities become entangled when one object moves over the other, creating friction. The friction will increase in significance as the roughness increases, creating more irregularities.
Mathematical concept-[tex]F=ma-----[1]\\\\F=mgsinx----[2]\\\\\\ma=mgsinx[/tex]
cancelling m both sides and finally the equation reduces to [tex]a=gsinx[/tex]
Calculations-g=9.8m/s² , x= 35
a=9.8 sin 35
a=9.8 x 0.57357
=5.62104907 m/s²
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Explain why the bowling ball slows down when it hits the pin.
Which of these is correct:
Because the ball loses momentum. The momentum is conserved because the total momentum before the interaction is equal to the total momentum after.
or
The ball loses momentum. This is because the ball and pin exert equal and opposite forces on each other when they are in contact but no external forces act on them
thank you
In EACH of the following pairs, circle the form of radiation with the
LOWER ENERGY (energy is directly related to frequency):
a. red light or blue light
b. microwaves or radio waves
c. infrared radiation or red light
d. gamma rays or UV radiation
e. yellow light or green light
f. x-rays or gamma rays
g. UV radiation or violet light
h. AM radio waves or FM radio waves
From of the following pairs, the form of radiation with the lower energy are
a.)microwaves or radio waves.
h.)AM radio waves or FM radio waves.
electromagnetic spectrum :
The electromagnetic spectrum is a collection of wavelengths, photon energies, and frequencies that extends frequencies.
wavelength increasing order of EM waves.gamma rays > X-rays > ultraviolet radiation > visible light > infrared radiation > radio waves.
wavelength ∝ 1 / frequency
energy is directly related to frequency is given as:E = hf
where
E = energy
f = frequency
h = Planck’s constant
From of the following pairs, the form of radiation with lower energy are
a.)microwaves or radio waves.
h.)AM radio waves or FM radio waves.
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a hydraulic press in a garage is attached to a platform that is used to lift cars. the press includes a small piston that is attached to a fluid-filled pipe, which opens into a larger chamber under the platform (see image below). if the platform has a radius of 3 m and the piston has a radius of 3 cm, how much force (in n) must be applied to the piston in order to raise a 1200 kg car?
Answer:
.12 kg
Explanation:
Area under car = pi 3^2 = 9 pi m^2
Area of piston = pi (.03)^2 = .0009 pi m^2
As a ratio:
.0009 / 9 = x / 1200
x = 1200 ( .0009/9) = .12 kg
Suppose two equal mass cars traveling with equal speeds in opposite directions collide head on and stick together. What fraction of the energy is dissipated?.
A collision which is inelastic is one in which the internal energy changes. The entire kinetic energy is lost. The parameters listed are.
When two cars collide, one car's mass equals the second car's mass, or m.
Inelastic collision is the collision type. Each car's speed before the incident was v and -v. The final velocity following the contact is zero, making the collision a perfect example of an inelastic collision.
The negative symbol represents energy that is given out or provided. The energy lost is equal to mv2 (The total initial kinetic energy). As a result, all of the kinetic energy is lost.
When particles, collections of particles, or solid entities travel in the same direction and get close enough to one other, they collide and exert mutual force.
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what specific factors might explain why the total angular momentum of the two systems was not conserved during the collisions?
Kinetic friction from the primary axle bearing, reader pull bearing, aux. pully bearing. The reader makes a sound whilst it pushes against the platter causing strength to be in part launched.
The belongings of any rotating item given by means of second of inertia instances angular pace. it's far the property of a rotating frame given by way of the manufactured from the instant of inertia and the angular velocity of the rotating object. Angular momentum from time to time known as spin is decided through an item's mass, its pace, and how some distance the mass extends out from the factor of rotation.
Angular Momentum is defined because the assets of any rotating object are given by way of the made from the moment of inertia and angular velocity of the rotating item. it is a vector and has both importance and course. The not unusual examples of angular momentum are the rotation and revolution of Earth.
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a 0.25 m radius grinding wheel is rotating with a constant angular speed of 2.0 rad/s. what is the linear displacement of the wheel after 3.0 s?
The linear displacement of the wheel will be 1.5m.
Linear displacement is the measure of straight path covered by the object .
Rotating angular speed of the wheel = 2.0 rad/s
Radius of the wheel = 0.25 m
According to the angular speed and linear speed relationship, we can say that linear speed is the product of angular speed and the the radius of the object
Mathematically, v = r * ωV = linear velocity
r = radius of the wheel
ω = angular velocity
V = 0.25 * 2
V = 0.5 m/s
Also, speed is equal to distance upon time.
V = d/t
Time at wheel the the wheel's linear distance is to be found = 3 s
therefore d = V * t
d = 0.5 * 3
d = 1.5 m
The linear displacement of the wheel after 3.0 s is 1.5 m.
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) if the elevator's acceleration had a magnitude of g in the upward direction, what would the normal force fn2 be in newtons?
The reaction force applied by the floor of the elevator on the cardboard box is 93.1N.
The mass of the cardboard box is 4.75 kg.
The elevator is moving in the upward direction with an acceleration of g.
According to Newton's law of motion, each and every action has an equal and opposite reaction.
Now, the reaction force that is going to be applied on the box by the floor of the accelerating elevator will be equal to that of the weight of the box felt by the floor of the elevator.
The net acceleration of the box is (g+g),
Net acceleration = 2g.
Now, the weight W of the boc,
W =4.75(2g)
W = 4.75 x 2 x 9.8
W = 93.1 N.
The reaction force Fₙ₂ on the box is 93.1 N.
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Complete question-A cardboard box rest on the floor of the elevator. The box has a mass m = 4.75 kg and the elevator has an upward acceleration a, if the elevator's acceleration had a magnitude of g in the upward direction, what would the normal force fn2 be in newtons?
a 0.650-kg object is swung in a circular path and in a vertical plane on a 0.500-m-length string. if the angular speed at the bottom is 8.00 rad/s, what is the tension in the string when the object is at the bottom of the circle?
The tension in the string = 83.2 N
What is tension?Tension is defined as the pulling force transmitted axially by using a string, a rope, chain, or similar object, or by each end of a rod, truss member, or similar 3-D object; tension might also be expressed as the action-reaction pair of forces acting at each end of said elements. Tension is the opposite of compression. All objects in contact with each other exert forces on each other. The best example of pulling force is seen when pulling on a rope. When a pulling force is applied to a rope, it creates considerable tension.
Given,
Mass of object (m) = 0.650kg
Radius of object (r) = 0.5 m
Angular speed (ω) = 8.00 rad/s
T = mω²/r
T = 0.65 × 8²/0.5
T = 83.2 N
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A spherical balloon is increasing in volume at 3 24 cm s π. How fast is the radius of the balloon increasing when the surface area of the balloon is 2 30π cm ?.
The rate of increase in balloon radius is 0.12 cm/s.
Solution:
r^3 = 24×3/4
r^3= 18
r= √18
r= 2.62cm
∴ the rate of change in radius here is 2.62cm/s since π is constant.
The surface area of the sphere= 4πr^2
the surface area of the balloon is 30πcm^2
therefore 30π= 4πr^2
divide both sides by 4π
r^2= 30/4
r^2= 7.5
r=√7.5
r= 2.74cm
The rate of change in radius here is 2.74cm/s
As altitude increases atmospheric pressure decreases. The pressure on the outside of the balloon then drops. In order to balance the external pressure, the gas inside expands and lowers the pressure. Therefore, the size of the balloon increases. Gas particles exert pressure on the walls of the gas-filled container. When you inflate a balloon the air inside expands and exerts pressure on the walls of the balloon. This will increase the size of the balloon.
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Why should diameter of double walled tube must be big for a ice box
The diameter should of the double-walled tube be big for an ice box is increase the thermal temperature.
Double wall pipes are an important safety tool when storing liquids such as those used in the chemical wastewater food and beverage industries. The majority of jacketed piping applications are for chemical wastewater-contaminated groundwater and chemical process safety.
Tube wall thickness in excess of that required for internal stresses and known loads not only provides a margin of safety against unexpected loads but also increases survival time when corrosion or fatigue mechanisms are in action. increase. Single-layer tubing is lightweight, flexible, and can be installed quickly with less personnel and equipment. The double wall is a smooth inner double wall with a corrugated outer tube.
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An athlete is running a circular track of radius 50m after he completed 2 revolution, what will be.
A, displacement B, distance
Answer:
displacement=√50^2+50^2=70.71m
Explanation:
Distance traveled by the athlete=length of the arc
=d(theta)r
Here the athlete runs 3\4of a circle whose radius is 50 m
here, d(theta)=3(pi)/2rad
hence distance=3(pi)/2 x 50
=235.61 m
displacement=the chord between the initial point and the final point. it subtends an angle of 90degrees at the centre of the circle.
it forms a right angled triangle.
hence by Pythagoras theorem,
displacement=√50^2+50^2=70.71m
12) pi2: why does the oscilloscope register a non-zero voltage for the small coil? there are no wires between the two circuits, so how can energy can transfer from one coil to the other?
The oscilloscope is also known as scope CRO or DSO the latter is the modern one.
An oscilloscope is used to observe the continuously varying voltage signal. It helps us to measure the varying voltage signal apart from voltage it is also used to measure other signals like sound, vibration also observation but this signal is first converted into voltage and then displayed on an oscilloscope. However this drawback has been covered in the DRO which directly Shows you the result without any conversion.
The oscilloscope shows the voltage with respect to the time which means it captures the voltage signal for a particular time and then shows up the result it means for large where the voltage signal is frequently changing within a second oscilloscope is unable to read and that's why show as a non zero voltage. The energy transfer between the coil without any electrical connection is done by the principle of mutual induction.
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If an object is moving in the negative direction, but its velocity is getting more positive, does that mean it has a positive acceleration? Does that mean it is slowing down?
Yes. it means the object is slowing down.
What is acceleration?Acceleration is a vector quantity that is defined as the rate at which an object changes its velocity. An object is accelerating if it is changing its velocity. Acceleration has to do with changing how fast an object is moving. Since acceleration is a vector quantity, it has a direction associated with it.
The direction of the acceleration vector depends on two things:
whether the object is speeding up or slowing downwhether the object is moving in the + or - directionIf an object is slowing down, then its acceleration is in the opposite direction of its motion.
In conclusion, If an object is not changing its velocity, then the object is not accelerating.
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if at a given time the magnitude of acceleration of a mass is 9 m/s2 when its position is 4 meters from equilibrium, what is the period of oscillation?
The period of oscillation, if at a given time the magnitude of acceleration of a mass is 9 m/s² when its position is 4 meters from equilibrium is 4.188 s
Acceleration can be expressed as,
a ( t ) = - ω² x ( t )
ω² = a ( t ) / - x ( t )
ω² = 9 / - ( - 4 )
ω² = 9 / 4
ω = 3 / 2
ω = 1.5 rad / s
T = 2 π / ω
T = Time period
ω = Angular velocity
T = 2 * 3.14 / 1.5
T = 4.188 s
Therefore, the period of oscillation is 4.188 s
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An object of mass 30 kg is in free fall in a vacuum where there is no air resistance. Determine the acceleration of the object.
if one ball's initial speed was 1.50 m/s , and the other's was 2.20 m/s in the opposite direction, what will be their velocities after the collision?
If one ball's initial speed was 1.50 m/s , and the other's was 2.20 m/s in the opposite direction, There velocities after collision will be - 2.2 m/s and - 2.9 m/s
given :
masses of both the balls are same
using conservation of momentum
m1u1 + m2u2 = m1v1 + m2v2
m1 ( 1.50 ) + m2 * (-2.20) = m1v1 + m2v2
m (1.50) + m ( -2.20) = mv1 + mv2
-0.7 = v1 + v2 equation 1
since
u1 + v1 = u2 + v2
1.50 + v1 = (-2.20) + v2
v1 - v2 = - 3.7 equation 2
solving equation 1 and 2 we get
v1 = - 2.2 m/s
v2 = - 2.9 m/s
There velocities after collision will be - 2.2 m/s and - 2.9 m/s
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both the gravitational and electric force between objects are considered ____ .
A) pushing forces
B) contact forces
C) field forces
D) applied forces
Answer:
C) field forces
Explanation:
A) pushing forces (wrong option)
---> gravitational force: an invisible force that pulls objects towards the earth
---> electric force: a contact force that pushes or pulls objects without making any contact, making it a technically non-pushing force
B) contact forces (wrong option)
---> gravitational force: since it is an invisible force (as stated in the explanation for option A), it is a non-contact force
---> electric force: as stated in the explanation for option A, it is also a non-contact force
C) field forces (correct option)
---> gravitational force: is a type of force field since it is a non-contact force
---> electric force: is also a type of force field that cause the attraction or repulsion of forces without actual contact between the charges
D) applied forces (wrong option)
---> not applicable for both forces as supported by all the above information
Explanation:
A huge variety of physical phenomena during interaction is determined by only four types of interactions: electromagnetic, weak, strong and gravitational.
Answer:
C) Field forces
an object of mass 2.9 kg is attached to a spring that has a spring constant of 69 n/m. suppose the spring is stretched a maximum distance of 0.136 m before the object starts to move. what is mu s, the coefficient of static friction?
The static friction value is the value from zero to the minimum force required to initiate motion. The formula for calculating static friction is:
Static Friction = Normal Force x Static Friction Coefficient.
The maximum or limit of friction between two surfaces is FMAX=μR F MAX = μR. where μ is the coefficient of friction and R is the normal reaction between two surfaces. The coefficient of friction is a measure of surface roughness, with rougher surfaces having higher values. Therefore, as the car makes a circular motion, the necessary centripetal force is provided by the frictional force. Therefore, the coefficient of static friction between a car tire and the road surface is 0.53.
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A man wishes to pull a crate 15m across a rough floor by exerting a force of 100 n. The coefficient of kinetic friction is 0. 25. For the man to do the least work, the angle between the force and the horizontal should be:.
For the man to do the least work, the angle between the force and the horizontal should be 76.
Work is calculated as the force multiplied by the distance travelled in the direction of the force.
given that,
force, f = 100 N
Coefficient of friction, = 0.25
distance, d = 15 m
So, net force, F = force - Coefficient of friction
net force = 100 - 0.25 x m g
Work = (100 - 0.25 mg) x d cosθ
For minimum work, the angle should be maximum.
So, the value of angle θ is 76°.
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