At what decibel Level two sounds starts to becomeHarmful to the ears and the hearing?

The magnetic field of magnet A extends further than the magnetic field of magnet B concludes that magnet A is larger in size and have stronger magnetic field than magnet B.

A magnetic field is a vector field that represents the effect of magnetic effect on moving charges, currents, and magnetic bodies. A charge moving in a magnetic field experiences a force perpendicular to its velocity and magnetic field.

Does size affect the strength of a magnet ? The answer is yes, but it's because the size of a magnet is proportional to its ability to align and produce a stronger magnetic field than smaller pieces of the same material. Because it means there are more domains.

To know more about magnetic field visit:

https://brainly.com/question/23096032

#SPJ4

Option C: Rock formations are subducted into the mantle after subduction.

Where two or more lithospheric plates meet, a geological process called as subduction recycles rocks from the oceanic lithosphere into the Earth's mantle. Where the tectonic plate converged between the oceanic lithosphere and a less dense lithosphere, the heavier plate sinks beneath the other plate into the mantle.

Deeply subducted sedimentary and metaphorical rocks eventually melt to generate magma, which subsequently cools to form igneous rock.

Therefore the rock cycle encompasses the entire process and lasts millions of years.

Learn more about subduction from;

brainly.com/question/9446297

#SPJ1

Only when a current passes through a wire encircling the core of an electromagnetic magnet do they become magnetic.

To know more about electromagnet

https://brainly.com/question/15237130

#SPJ1

Answer:

Option C is correct. The ball keeps moving forward and falls downward at the same time.

Explanation:

When the ball reaches the edge of the cliff, its forward motion will indeed continue due to its inertia. Inertia is the property of an object to maintain its state of motion. However, gravity will also be acting on the ball, causing it to accelerate downward.

As a result, the ball will move forward and descend downward at the same time. The trajectory of the ball will be a curved path that combines the horizontal motion (forward movement) and the vertical motion (downward fall) simultaneously. This curved path is known as a parabolic trajectory.

The exact shape of the trajectory will depend on factors such as the initial velocity, angle of the cliff, and air resistance. If there is no air resistance and the cliff is not too steep, the ball's trajectory may resemble a smooth parabolic curve. However, if there is air resistance or the cliff is steep, the trajectory might deviate from a perfect parabola.

Eventually, due to the downward acceleration caused by gravity, the ball's vertical motion will dominate, and it will fall straight down. But immediately after reaching the edge of the cliff, the ball will experience a combination of forward motion and downward descent.

11.1 m and -18.4 m is the  ball's position, 5.2 m/s and -24.2 m/s  is the  ball's velocity  after leaving your hand

s = ut + 1/2at²

s = 15(t) + 1/2(-9.8)(t)²

s = 15t - 4.5(t)²

t = 1 second,

s = 15(1) - 4.9(1)²

s = 15 - 4.5

s = 11.1 m  [at t = 1 second]

t = 4 seconds,

s = 15(4) - 4.9(4)²

s = 60 - 4.9(16)

s = 60 - 78.4

s = -18.4 m  [t = 4 seconds]

v = u + at

v = 15 + (-9.8)t

time = 1 second,

v = 15 - 9.8

v = 5.2 m/s [ t = 1 second]

time = 4 seconds,

v = 15 - (9.8)(4)

v = 15 - 39.2

v = -24.2 m/s   [for t = 4 seconds]

velocity's a vector quantity have magnitude and direction.

To know more about  velocity  visit : https://brainly.com/question/19979064

#SPJ9

The kinetic energy when it returns to its original height is 100 J

The ball is thrown up with a Kinetic Energy K. E. = 0.5×m×v² = 100 J

Therefore the final height is given by

u² = v² -2·g·s

Where:

u = final velocity = 0

v = initial velocity

s = final height

Therefore v² = 2·g·s = 19.62·s

P.E = Potential Energy = m·g·s

Since v² = 2·g·s

Substituting the value of v² in the kinetic energy formula, we obtain

K. E. = 0.5×m×2·g·s = m·g·s = P.E. = 100 J

When the ball returns to the original height, we have

v² = u² + 2·g·s

Since u = 0 = initial velocity in this case we have

v² = 2·g·s and the Kinetic energy = 0.5·m·v²

Since m and s are the same then 0.5·m·v² = 100 J.

Know more about kinetic energy at:

brainly.com/question/25959744

#SPJ4

The driver of a car going 16.0 m/s suddenly sees the lights of a barrier 84.0 m ahead. It takes the driver 0.75 s to apply the brakes, and the average acceleration during braking is -10.0 m/s2. The total displacement of the car 9.19 m

The branch of physics that defines motion with respect to space and time, ignoring the cause of that motion, is known as kinematics. Kinematics equations are a set of equations that can derive an unknown aspect of a body’s motion if the other aspects are provided.

s = u*t + 1/2 a [tex]t^{2}[/tex]

s = displacement

u = initial speed

t = time

a = acceleration

s = 16 * 0.75 + 1/2 * ( -10 ) * [tex](0.75)^{2}[/tex] = 9.19 m

The total displacement of the car will be 9.19 m

To learn more about kinematics here:

https://brainly.com/question/12977552

#SPJ1

Two object experiencing force between them the strength of the force increases as the mass increases , and decreases as the distance increases.

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

The gravitational constant, denoted by the capital letter G, is an empirical physical constant involved in the calculation of gravitational effects in Sir Isaac Newton's law of universal gravitation and in Albert Einstein's theory of general relativity.

f = Gmm/r²

Two object experiencing force between them the strength of the force increases as the mass increases , and decreases as the distance increases.

To learn more about force refer to the link:

brainly.com/question/13191643

#SPJ1

The centripetal acceleration arad and tangential acceleration atan compare at points P and Q by Q having a greater arad and atan than point P.

arad = v² / r

v = 2 π r / T

arad = 4 π² r / T²

Since time period will be constant at any point in the radius line,

arad ∝ r

So larger the radius, larger will be the centripetal acceleration. The radius at point P is smaller than the radius at point Q.

arad at Q > arad at P

atan = r α

α = 2 π / T²

atan = 2 r π / T²

Since time period will be constant at any point in the radius line,

atan ∝ r

So larger the radius, larger will be the tangential acceleration. The radius at point P is smaller than the radius at point Q.

atan at Q > atan at P

Therefore, Q has a greater arad and atan than point P.

To know more about centripetal acceleration

https://brainly.com/question/14465119

#SPJ4

Answer:

Explanation: 1: The gas particles move in a straight line before colliding with something, usually the wall of their containers.

2: The is no attraction or repulsion between the gas particles.

The objective of the experiment of submerging different objects in fluid is to determine the density of the unknown material using Archimedes' principle.

Archimedes' principle- The amount of the upward force felt by the object when submerged in fluid is equal tot he weight of the mass of the fluid displaced.

So, in this experiment,

The objects of unknown densities are submerged in liquid, they displaces some amount of liquid. The amount of liquid is related to the buoyancy of the unknown object as,

Vₐpg = Vσg

where,

p is the density of the unknown object,

σ is the density of the fluid and Vₐ is the volume of the body submerged in fluid and V is the volume of the water displaced.

So, by this relation, we can find the density of the unknown material.

To know more about Archimedes' Principle, visit,

https://brainly.com/question/775316

#SPJ4

Given:

• Mass of ice = 295 g ==> 0.295 kg

• Initial temperature, T1 = -5°C

• Final temperature, T2 = 20°C

Let's find the amount of heat necessary to change the ice to water.

To find the amount of heat, let's apply the Specific Heat Capacity formula:

Where:

m is the mass in kg = 0.295 kg

T1 is the initial temperature

T2 is the final temperature.

c is the specific heat capacity

Let's first find the amount of heat required to change ice from -5°C to 0°C.

Now, let's find the heat required to change from 0°C(ice) to 0°C(water).

We have:

Where L is the latent fusion of water:

Now, let's find the heat required to change 0°C (water) to 20°C(water).

We have:

Therefore, the total heat required is:

Q = Q1 + Q2 + Q3

Thus, we have:

Therefore, the amount of heat neccesary is

Answer:

830 cm

Explanation:

From 0 - 4

acceleration = slope =  90 /4 = 22.5

   distance = 1/2 at^2 =   1/2 (22.5)(4^2) = 180 cm

from 4-7   velocity is constant 90 cm/s    = 270 cm

from 7-11   acceleration = slope =  10 /4  = 2.5 m/s^2

    distance =vo t   + 1/2 a t^2  = 90(4) + 1/2 (2.5)(4^2) = 380 cm

Summed = 180 + 270 + 380 = 830 cm

Answer:

Explanation:

Given:

t₀ = 0 s

V₀ = 0 cm/s = 0 m/s

t = 11 s

V = 100 cm/s = 1 m/s

________________

| S |  - ?

Movement module:

| S | =  V·t = 1·11 = 11 m

(The displacement is numerically equal to the area of the triangle AOB):

Answer: C

Explanation: because it is made out of metal.

Answer:

C- iron nail.

Explanation:

iron nails are attracted to magnets and that's made of magnetic material.

The retail industry's customer service representatives outperformed all other industries in 2008, and the cable and satellite tv representatives scored lowest due to little knowledge of their product and service.

In the case of retail industry, it was easy to show courteousness, helping mentality and to offer discounts in 2008. The service executives had good knowledge on the products sold in the retail industry which helped them to handle the issues efficiently. Hence they received very high scores compared to other industries.

But cable and satellite TVs were in its initial stages in 2008 and hence the representatives had a little knowledge on the same to address customer doubts. Hence it was difficult for them to address the issues and giving discounts was also not possible due to the high cost required for installation and service.

Therefore, the cable and satellite tv representatives scored lowest due to little knowledge of their product and service.

To know more about customer service

https://brainly.com/question/28417930

#SPJ4

Given,

The extension of the spring due to the attached mass, x=1.24 m

The spring constant, k=330 N/m

The weight of a mass m is given by,

Where g is the acceleration due to gravity,

The magnitude of the restoring force of a spring is given by,

Therefore,

On substituting the known values,

Thus the mass of the weight is 41.76 kg

Given data:

* The change in gravitational potential energy is 26500 J.

* The change in height of the diver is 33.0 m.

Solution:

The change in gravitational potential energy in terms of change in height of the diver is,

where m is the mass of diver, g is the acceleration due to gravity, dh is the change in height, and dU is the change in gravitational potential energy,

Substituting the known values,

The weight of the diver is,

Thus, weight of the diver is 803.03 N.

Between visible light and microwave is where infrared falls. Infrared has a higher energy than radio but a lower energy than gamma rays.

The term "infrared" refers to electromagnetic waves that exist within the electromagnetic spectrum at frequencies slightly below those of red visible light and just above those of microwaves. According to the California Institute of Technology, the wavelengths of infrared radiation are longer than those of visible light (Caltech).

The majority of the radio portion of the electromagnetic spectrum (EM spectrum) is found between 1 cm and 1 km, or 30 GHz and 300 kHz in frequency. The EM spectrum's radio region is relatively vast. Astronomers usually employ wavelength in the infrared and optical spectrum.

To know more about infrared visit:-

https://brainly.com/question/20779091

#SPJ4

Answer:

Explanation:

every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force.

You can improve how you handle stress and difficulties (adversity) in your life by using a variety of stress management techniques. You may lead a more well-balanced existence by controlling your stress.

To know more about Stress Management, visit:

https://brainly.com/question/1588572

#SPJ1

7.26 x 10-5 rad/sec

The angle of one rotation is 2π. The time required for this rotation is 24 hours to calculate the angular speed of the Earth as it rotates completely around its own axis. Average Angular Velocity Wav is the average rate of change of angular displacement.

On converting the hours into seconds we get,

Time = 24 hr x 60 min/hr x 60 sec/min = 86400 sec

The angular speed is given by the formula, ω = θ /t.

after substituting the value given in the equation we get,

ω = 2π / 86400 Seconds

ω = 0.0000726 radians/sec = 7.26 x 10-5 rad/sec

To learn more about acceleration click here:  https://brainly.com/question/29624803

360 degrees per 24 hours

The given statement is true

Inertia is the tendency of an object to stay at rest or in motion

The vertical component (height) of the pendulum's maximum displacement is 0.146 meters.

In physics, the maximum displacement or range traveled by a point on a vibrating body or wave calculated from its equilibrium position is known as amplitude. It is one-half of the length of the vibration path.

We have a collision when the bullet hits the pendulum, and momentum is preserved in any collision. Let the pendulum's beginning momentum and the bullet's initial momentum be, p₁ and p₂, respectively.

Following the impact, the pendulum and the bullet travel as one object with the same velocity, v. Let p₃ be the momentum of the pendulum and as well as the bullet following the impact.

Hence,

First momentum = Last Momentum

p₁ + p₂ = p₃

[3.4kg x 0m/s] +([2.90 x 10⁻²] x 200m/s) = 3.48kg x v

Simplified, we have

5.8kg · m/s = 3.49kg · v

Making v the subject of the formula, we have

v = 1.69m/s

As a result, the combined velocity of the pendulum and bullet after the contact is v = 1.69 m/s.

We are now using the conservation of energy equation. The potential energy at the maximum height will be equal to the kinetic energy of the pendulum plus the bullet.

mgh = 1/2mv²

Where

m is the mass in kilograms

g is the acceleration due to gravity

h is height in meters; and

v is velocity

If we divide both sides with m and make h the subject of the formula, we have:

h = v²/2g

= (1.69m/s)²/2 (9.81)m/s²

= 0.14557084607m

Hence,

The vertical component of the pendulum's maximum displacement (h) [tex]\approx[/tex] 0.146m

Learn more about Maximum Displacement:
https://brainly.com/question/22713852
#SPJ1

Full Question:

A 29-g rifle bullet traveling 220 m/s embeds itself in a 3.9-kg pendulum hanging on a 3.0-m-long string, which makes the pendulum swing upward in an arc.

Determine the vertical component of the pendulum's maximum displacement. Express your answer in two significant figures and include the appropriate units.

Answer:

E) The rod remains uncharted.

Explanation:

The negatively charges rod has an excess of electrons. These electrons repel each other, so when this rod touches the horizontal uncharged insulating rod, they will try to go to the uncharge rod. However, this is an insulating rod, so there will be no transfer of electrons. It means that the rod remains uncharted.

The strength of gravity of planets Jupiter and Pluto are 23.1m/s² and  0.6m/s² respectively.

We are given that,

The mass of the shoes =  m=0.500 kg

The weigh  of the shoes on the Jupiter = W₁=11.55 N

The weigh of the shoes on the Pluto = W₂=0.3 N

Therefore, the weight to mass ratio determines the strength of gravity, or the acceleration caused by gravity.

[tex]g_{j} = \frac{w_{1} }{m}[/tex]

Putting the values in above equation we can get,

[tex]g_{j} = \frac{11.55N}{0.500kg}\\ g_{j} = 23.1m/s^{2}[/tex]

Since, the gravity strength of planet Jupiter would be 23.1m/s²

[tex]g_{p} =\frac{w_{2} }{m} \\g_{p} = \frac{0.3N}{0.500kg} \\g_{p} = 0.6 m/s^{2}[/tex]

Thus, the gravity strength of planet Pluto may be 0.6m/s².

To know more about gravity

https://brainly.com/question/11616210

#SPJ1

4.8× 10^-11 weber is the magnetic force on a proton that is moving at 2.5 × 10^7 m/s up through a magnetic field that is 0.12 T

F=qBv

q=1.6 x 10^-19 C

v=2.5 × 10^7 m/s

B=0.12T

F=qBv

F=1.6 x 10^-19 C×2.5 × 10^7 m/s×0.12T

F=4.8× 10^-11 weber

A magnetic force, attraction, or repulsion is produced by the motion of electrically charged particles. It is the underlying force that causes phenomena like the operation of electric motors and the attraction of magnets to iron. There are electric forces acting on stationary electric charges, and there are magnetic and electric forces acting on moving electric charges. The magnetic force between two moving charges is the effect of a magnetic field produced by one charge on another charge.

The intensity of the magnetic field B1 produced by the first moving charge, the sine of the angle theta, the second particle's charge q2, its velocity v2, and the magnetic force F are all inversely related in this hypothesis.

To know more about   magnetic force visit : https://brainly.com/question/3160109

#SPJ9

Answer: 0.54 kg meter per second

Explanation:

this is a cost of 0.180. Multiplying by 1.5 divided by 5 equals 0.54 Kg meter per second. This is the momentum.

I hope this helps!

A car moving at 46 km/h skids 15 m with locked brakes. The distance travelled by the car when it skids is 94.74 m.

The acceleration of the car is calculated by applying the following kinematic equation.

v² = u² - 2as

where,

v is the final velocity of the car

u is the initial velocity of the car

a is the acceleration of the car

s is the distance travelled by the car

when the car stops, the final velocity, v = 0

0 = u² - 2as

2as = u²

a = u²/2s

where,

u = 46 km/h = 12.7 m/s

a = (12.7²) / (2 x 15)

a = 5.37 m/s²

When the speed of the car changes from 42 km/h to 126 km/h, the distance travelled by the car at the same acceleration is calculated as follows;

s =  u²/2a

where,

u = 115 km/h = 31.9 m/s

s = (31.9²) / ( 2 x 5.37)

s = 94.74 m

The distance travelled by the car when it skids is 94.74 m.

Learn more about distance travelled here: brainly.com/question/24283318

#SPJ1

If a gram of antimatter meets a kilogram of matter, the amount of mass to survive is 1 gram.

Matter :

A substance called matter is made up of different kinds of particles, occupies space, and has inertia.

The various types of particles each have a unique mass and size according to the fundamentals of modern physics.

Antimatter :

As the opposite particles of the corresponding particles in "ordinary" matter, the antimatter is defined as matter made up of them.

The two particles' combined mass is entirely converted into energy. The term "matter-antimatter annihilation" refers to this process.

If a gram of antimatter meets a kilogram of matter, the amount of mass to survive is 1 gram.

To know more about matter :

https://brainly.com/question/29232090

#SPJ4