a series circuit has individual resistor values of 200 ohm, 86 ohm, 91 ohm, 180 ohm, and 150 ohm. what is the total resistance of the circuit?

The object's beginning speed is reported as 0.25 m/s because inertia depends on mass, which is constant and equal to 12 kg; however, if the object is tripled, the

In order to feel more focused and alert and occasionally to feel euphoric, teenagers, young adults, and the others use a variety of stimulant drugs commonly known as "speed." Some people also employ a variety of speeds to curb their appetites.

You muscles lack strength, intimidation, and might without speed. Simply for display and to assist friends who are moving large pieces of furniture. The good news is that with the appropriate kind of fitness training, you can increase your speed.

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The acceleration of the satellite which is moving around the planet is

7.824 x 10²¹m/s².

Mass of a satellite of  moving around a planet = 2.15 x 10⁴kg

The  radius the planet  = 4.28 x 10⁷ m

The mass of the planet = 2.36 x 10²⁹kg

Gravitational constant = 6.67 x 10⁻¹¹ N (m/kg)

Acceleration of the satellite is calculated as :

[tex]a = \frac{G m}{R^2}[/tex]

where,

G = gravitational constant

m = mass of object

R = radius.

a = (6.67 x 10⁻¹¹ N(m/kg) x  2.15 x 10⁴kg )/( 4.28 x 10⁷ m)²

a = 7.824 x 10²¹m/s².

The acceleration of the satellite which is moving around the planet is

7.824 x 10²¹m/s².

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The magnitude of the angular velocity of a particle whirling about a circular path of radius 44m with a tangential velocity of magnitude 24 m / s is 0.55 rad / s

v = r ω

v = Tangential velocity

r = Radius

ω = Angular velocity

r = 44 m

v = 24 m / s

ω = v / r

ω = 24 / 44

ω = 0.55 rad / s

Tangential velocity is also known as linear velocity. So the linear velocity value multiplied by the radius of the curve gives the value of angular velocity which is represented using the unit rad / s.

Therefore, the magnitude of the angular velocity is 0.55 rad / s

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The near side of the Earth is 12740 km closer to the Moon than the far side. As a result, the near side experiences a gravitational force that is 7% stronger than the far side.

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The momentum of the hockey puck is 18 kgm/s.

Momentum of any object is nothing but the product of mass and velocity. Momentum is a vector quantity so it is having both mass and direction. generally the direction of momentum is the same as the direction of velocity, because mass is a scalar quantity.

It means we can write that,

momentum = mass x velocity

P = mxv

here in the question we have mass 0.12 kg and velocity is 150 m/s, so we can write

P = 0.12 x 150 (kgm/s)

p = 18 kgm/s

Hence the momentum of the hockey puck is 18 kgm/s.

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The Frequency will be "266.14 Hz" and the number of loops is "be 60".

Given:

Tension,

765 N

Length,

0.600 m

Mass,

4.50 g

As we know,

→ Linear density,

μ=[tex]mass/length[/tex]

By substituting the values, we get

4.5×10⁻³/0.6

=7.5×10⁻³      

The fundamental frequency will be:

→ F=1/2L√T/μ

=266.14Hz

and,

The number of loops will be:

→ n=f'/f

=16000/266.14

=60

Thus the above response is correct.

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The distance acted by a force of 200 N on a billiard ball of mass 0.25 kg is 0.0025 m.

Distance can be defined as the length between points.

To calculate the distance the force act, we need to first find the acceleration of the ball produced by the force.

Using,

Where:

Given:

Substitute these values into equation 1

Finally, we calculateb the distance, using the formula below.

Where:

From The question,

Given:

Substitute these values into equation 2

Hence, the distance acted by the force is 0.0025 m.

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The correct answer of Brewster’s angle is 48.8 degrees.

What is light's Brewster angle as it travels through water?

Brewster's law is the name of this equation, and the angle it defines is known as Brewster's angle. Brewster's angle for visible light is around 56° for a glass medium in air (n2 = 1.5), while it is roughly 53° for an air-water interface (n2 = 1.33)

The inverse tan of n 2 over n 1 is what is known as Brewster's Angle. Therefore, 48.8 degrees is the inverse tan of 1.52 divided by 1.33.

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A torque's characteristic direction can be categorized as either clockwise or counterclockwise.

The rotational counterpart of linear force is torque. Depending on the subject of study, it is also known as the moment, moment of force, rotating force, or turning effect. It represents a force's ability to cause a change in the body's rotational motion.

Magnitude is referred to as an object's maximal size and direction.

A torque's characteristic direction can be categorized as either clockwise or counterclockwise.

It is possible to describe the direction of a torque as clockwise or counterclockwise, and the magnitude of the torque produced by a given force is equal to Fd.

A torque's characteristic direction can be categorized as either clockwise or counterclockwise.

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The two physics mistakes that occur in science fiction movies that show a distant explosion in outer space, where you see and hear the explosion at the same time are:

Firstly, in outer space, there is no air or other material to propagate sound.

Second, if there were air or any material then the faster-moving light would reach you before the sound.

Moreover, to travel to us from outer space, the wave must be able to travel through regions of space which are essentially a vacuum. Sound requires a medium to propagate in, so we would not be able to hear the explosion.

Sound and light travel at very different speeds - light travels about a million times faster than sound, so the explosion could not be seen and heard at the same time, it would be heard later.

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71.43 J of work is required, using an ideal Carnot refrigerator, to remove 1 j of heat energy from helium at 4 k and eject this heat to a room temperature (293 k) environment

coefficient of performance = T / ΔT

                                             = 4 / 293 - 4 = 0.014

Qc (heat) = work * coefficient of performance

work = Qc /  coefficient of performance

        = 1 / 0.014 = 71.43 J

71.43 J of work is required

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Therefore, the tension in the string at its lowest point is equal to the weight added to the required centripetal force.

The rope tension is always directed towards the center of the circle. Below it means tension is UP and gravity is DOWN. At the top, downward gravity provides the necessary centripetal force. Therefore the voltage is 0. At the bottom, tension must provide the necessary centripetal force and balance gravity equal to mg downwards. Zero voltage is loose. Strings and ropes are often idealized as dimensions with length but no mass and zero cross-section.

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The correct answer is 0.75 second will take to change velocity.

What connection exists between force and mass of acceleration?

Mass times acceleration, or F=m x a, equals force. This means that in order to move an object at the same speed or velocity as an object with smaller mass, a stronger force is required. Newton's Second Law of Motion is this.

Given, Initial velocity u = 2 m/s

Final velocity     v=5 m/s, mass of trolley = 5 Kg. , Force = 20 N

Force = Mass x acceleration

 20 N = 5 x a

 a = 4 m/ s²

v = u + at

 5 = 2 + 4x t

 t = 3/ 4 = 0.75 second

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Explanation:

speed = distance/time

distance/speed = distance / distance/time = time

when we define the equations, we must be careful to use the same scales as in the given numbers.

as we are dealing with km/h for speed, we need to have distance measured in km, and time in hours.

6 minutes is therefore 1/10 of an hour (1 hour = 60 minutes).

distance/30 = x - 1/10

distance/20 = x + 1/10

we subtract equation 2 from equation 1 :

distance/30 = x - 1/10

- distance/20 = x + 1/10

-----------------------------------

distance/30 - distance/20 = -2/10

we multiply by 60 to eliminate all fractions :

2×distance - 3×distance = -2×6 = -12

-distance = -12

distance = 12 km

x = the travel time to arrive on time.

distance/30 = x - 1/10

12/30 = x - 1/10

12 = 30x - 3

15 = 30x

x = 15/30 = 0.5 hours = 30 minutes

so, he has half an hour for his 12 km trip to work to arrive precisely on time.

that means his average speed for that must be

12/0.5 = 24/1 = 24 km/h

Answer:

photons      

E = h ν          where h is Planck's constant and ν = frequency of packet

The crankshaft will undergoes 89 revolution.

Revolution can be defined as the action of a celestial body moving along an orbit or elliptical path.

Revolution of the crank shaft can be calculated by the second equation of rotational motion, θ = ut + 0.5 at²

θ = distance covered in radians

u = initial velocity of the crankshaft = 0 rad/sec

t = time taken to complete all the revolutions

a = angular acceleration

Angular acceleration can be calculated by the first equation of rotational motion, a = (v-u)/t

v = 3240 rpm = (3240 * 2 * [tex]\pi[/tex]) / 60 = 339.3 rad/sec

a = (339.3 - 0)/ 3.3

a = 102.81 rad/sec²

Putting the value of 'a' in equation θ = ut + 0.5 at²

θ = 0 *3.3 + 0.5 * 102.81 * (3.3)²

θ = 559.80 rad

θ = 560 rad

n = no of revolution = θ/2[tex]\pi[/tex]

n = 560/2[tex]\pi[/tex]

n = 89.12 = 89 revolutions

The crankshaft in a race will undergo 89 revolution when it goes from rest to 3240 rpm.

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When the electric field is turned on, the dipole moment ends up aligned parallel to the external electric field.

What is dipole ?

There are two types of dipoles in electromagnetism.

The electric dipole deals with the separation of positive and negative charges found in electromagnetic systems. A simple example of this system is a pair of charges of equal magnitude and opposite sign, usually separated by a short distance. (A permanent electric dipole is called an electret.)

A magnetic dipole is a closed circuit in the current system. A simple example is a single wire loop with a constant current. An electric or magnetic dipole can be characterized by the vector quantity dipole moment. In a simple electric dipole, the electric dipole moment points from a negative charge to a positive charge and has a magnitude equal to the strength of each charge multiplied by the distance between the charges. (To be exact:

The "dipole limit" should always be considered when defining the dipole moment. For example, the generated charge spacing should converge toward 0, but at the same time the charge strength should diverge toward infinity so that the product does not change. positive constant)

For a magnetic (dipole) current loop, the magnetic dipole moment passes through the loop (according to the right-hand grip rule) with a magnitude equal to the current in the loop multiplied by the area of ​​the loop.

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In a parallel arrangement, the potential difference across each resistor and the equivalent resistor is equal.

When two resistors are connected in parallel, the voltage across both resistors is the same. Battery current is divided between the two resistors. If two resistors are connected in series, the current through both resistors will be equal. The battery voltage is divided between the two resistors. The largest resistor has the largest voltage across it. In parallel, the resistors are all connected together at one end and all connected together at the other end. The potential difference across each resistor is equal, and the sum of the currents is equal to the total current going into (and out of) the parallel connection.

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The mass of a black hole needs to be in order for its mass divided by its volume to be equal to the density of water (1g/cm³) is 7x10²¹ solar masses or 1.45 x 10⁵⁵g

A black hole is a collapsed star where all of the mass is concentrated into a single point in space. As it is a point, there is no volume. Therefore the density of the singularity is therefore infinite regardless of mass which is given by,

Density = Mass/Volume

Density =Mass/0

Density=Infinite

However, it is said that black holes have an event horizon, which is said to be the point where light is "captured" by the black hole. If we assume this event horizon is a spherical boundary for the black hole, then we can use its volume for our density calculation instead of the singularity.

Effectively, we could able to calculate the "average" density within the event horizon. The radius of the event horizon is called the Schwarzschild Radius, and can be found using the following formula,

R = 2MG/c²

where M is the mass of gravity, G is the gravitational coefficient and c is the speed of light. The volume of the spherical horizon could be computed as,

V = πR²

On substituting the value of R to this formula we get,

V = π(4M²G²)/c⁴

Density = c⁴/π(4MG²)

M = c⁴/4πPG²

If we consider the density to be the density of water that is 1g/cm², then mass could ve computed as,

[tex]M = \frac{(3*10^{8})^{4} }{3.14*4*1*(6.6743*10^{-11})^{2} } \\M = \frac{(3*10^{8})^{4}}{12.56*44.52*10^{-22}} \\M = \frac{81*10^{32}}{559.2833*10^{-22}}} \\[/tex]

M = 0.14482 x 10⁵⁴

M = 1.45 x 10⁵⁵ g

In more meaningful terms, this could be approximated to 7×10²¹ solar masses, within the range of stellar black holes.

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The maximum distance the firefighter can climb is 2.623 m.

Calculation:-

Let the maximum height be Dmax

The coefficient of friction is halved thus

[tex]\mu1 = \mu/2 = 0.306 / 2 = 0.153[/tex]

Now,

[tex]NW = \mu1*N = 1330 * 0.153 = 203.49[/tex]

= [tex](Weight of the ladder*cos\theta)* L/2 + (Weight of the man*cos\theta)* dmax - ( NW*sin\theta)* L = 0[/tex]

=  480*cos63 * (14/2) + 850*cos63*dmax - ( 203.49 *sin63 * 14) = 0

= 480*0.454*7 + 850*0.454*dmax = 203.49 *0.891*14

= 1525.44 + 385.9*dmax = 2538.33

= 385.9*dmax = 2538.33 - 1525.44  = 1012.89

= Dmax = 1012.89 / 385.9  = 2.623 m

or maximum distance is 2.623 m.

Maximum distance means the distance from the provider to the subscriber's place of residence or work. Maximum altitude is the maximum vertical distance a projectile can travel from the horizontal plane. Maximum height is the maximum height an object will reach during projection and horizontal extent is defined as the distance traveled horizontally across the ground after projection.

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Radio telescopes are ideally used to detect the incoming light from planetary bodies from outside the earth.

So this is kind of a receiver itself as it receives the light. Further in such telescopes, there is a mounting system, on which large dishes are placed to receive radiation in large amounts.

But there is no transmitter in the telescope and if we want to bounce the radar signal off a planetary body we must need a source that will send such a signal. So a transmitter is required. A radio telescope is a specialized antenna and radio receiver used to come across radio waves from astronomical radio resources in the sky.

Radio telescopes detect and make bigger radio waves from the area, turning them into indicators that astronomers use to decorate our knowledge of the Universe.

A radio telescope is an astronomical device consisting of a radio receiver and an antenna device that is used to detect radio-frequency radiation emitted by way of extraterrestrial sources. Radio telescopes are much like optical telescopes in that the elements of these telescopes that produce images are sincerely the detectors that are placed at the focus.

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Gamma ray bursts occur randomly and pass very quickly. The explosion released more energy than a billion suns in just a few seconds.

Gamma rays are an energetic form of electromagnetic radiation produced by radioactivity or other nuclear or subatomic processes such as electron-positron annihilation. Gamma rays make up the highest-energy electromagnetic spectrum.

Gamma ray explosions are the brightest explosions in the universe.

Astronomers believe that most explosions of this kind occur when an exotic massive star runs out of nuclear fuel.

The star's core collapses in the form of a black hole, a jet of material ignited by an unknown process released into space at speeds close to the speed of light.

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Answer:

4 m

Explanation:

[tex]v = f \times  λ[/tex]

speed of sound wave (according to question)

= 1 × 1000 = 1000m/s

wavelength is represented by λ

therefore to find the wavelength, divide the speed by the frequency of the second wave given by the question

λ of another wave = 1000 ÷ 250 = 4 m

Speed of sound equals wavelength and frequency. The wavelength of the sound wave if the frequency is 250hz is 4 meters.  

Sound requires a medium to propagate in the form of vibration. It is the pattern of disturbance caused by the movement of energy particles propagating through the medium.

Sound waves can travel in the form of transverse and longitudinal waves. When the sound source continues to vibrate in the medium, the vibrations are propagated in the form of sound waves.

The sound waves travel at different speeds in different mediums. the speed of sound waves remains constant in the same medium. The speed of sound waves is directly proportional to wavelength and frequency.

Wavelength(λ) measures the distance between two crests/ two troughs in a wave and its SI unit is a meter. The frequency (f) of a wave is the number of waves that pass in a certain time and its unit is hertz(Hz). The SI unit of the speed sound wave is m/s.

From the givens,

wavelength(λ) = 1 meter.

frequency (f) = 1000hz.

Speed of wave(v) = wavelength × frequency

                              = 1 × 1000

                           v   = 1000 m/s.

speed of wave = 1000 m/s.

frequency = 250hz

wavelength(λ) = speed / frequency

                        = 1000 / 250

                        = 4 meters.

Hence, the wavelength(λ) of a 250 hz sound wave is 4 meters.

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Centripetal force is 5.61N

string length r=85cm

mass =1.5kg

velocity=1.08

Centripetal force= mv2/r= 1.5+1.08*1.08/85

=5.61N

Centripetal force is the force exerted on an object moving curvilinearly that is pointed in the direction of the object's axis of rotation or center of curvature. Newton is the symbol for centripetal force. Whenever an object moves, the centripetal force is applied perpendicular to that direction.

Gravity is the centripetal force in Newtonian mechanics that drives astronomical orbits. The scenario in which a body travels at a constant speed along a circular path is a typical illustration of centripetal force.

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​

The force that the larger block (m) is exerting on the smaller block is 4 N.

Force is a push or pulls upon an item because of the object's interaction with some other object. pressure is a power that can exchange the motion of an object. A force can reason an object with mass to alternate its speed, i.e., to boost up. pressure also can be described intuitively as a push or a pull. A force has each significance and course, making it a vector amount.

Calculation:-

mass = 3 kg

force applied = 12 N

a = 12/3

  4 m/s²

mass of a smaller object = 1 kg

F = ma

 = 1 * 4

 4 N

The phrase 'Force' has a unique meaning. At this degree, it is absolutely appropriate to describe a force as a push or a pull. A force is not something that an object consists of or 'has in it. A force is exerted on one object through another. The concept of a force isn't always restricted to living matters or non-living matters.

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Answer:

you should search it up and the answer is you need to find out what the word is and connect it to a food web like producers.

Explanation:

if you do a food web you would probably get half extra credit which would be good you need to write about biaocummation is and connect it to a food web you can do any like producers, consumers, decomposers and so on if it won't really be right copy the question, write the answer and say you want to redo it but im only a 5th grader so don't blame it on me if you might get it wrong. its the only way......

Am mass of 0.431 kg should be added to the suspended mass so that the period changes from 1.25s to 1.75s.

The time period of the mass oscillating is given by,

T = 2π√(M/k)

Where,

M is the mass suspended by the spring and K is the spring constant,

The mass suspended is 0.145 kg and the time period is 1.25 seconds.

So, putting values,

1.25 = 2π√(0.415/K) ......Equation 2,

Let us say, that we have to add a mass M to the object so that the period changes to 1.75 seconds.

So, we can write,

1.75 = 2π√(0.415+M/K) ......Equation 1

Dividing the equations 1 and 2, we get,

M = 0.431 kg.

So, a mass of 0.431 kg should be added to change the time period.

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If it takes 14 minutes, or 840 seconds, to drive from MOHS to the Rockaway Mall, the average speed for this route is 216 m/s.

The total distance something has traveled is divided by the total amount of time it took to traverse that distance to arrive at its average speed. Speed is the current rate of movement of something. Average speed is the speed that a vehicle travels at on average over the course of a trip.

The average speed is calculated by dividing the total distance traveled throughout the entire time period. A person's average speed, for instance, is calculated as 40 miles divided by 40 minutes, or 1 mile per minute, if it takes them 40 minutes to drive 20 miles north, 20 miles south, and then 20 miles in between (60 mph).

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Benjamin Franklin invented lightning rod and suggested that pointed conductors were the best option for avoiding damage.

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The speed with which the clock is traveling is 0.866*3*10^8 m/s.

We know that by Lorentz Time Dilation formula, T= T'/([tex]\sqrt{1-\frac{Velocity^{2}}{c^{2} } }[/tex]) -(i)

We also know that the clock is moving half times as faster.

Using equation number (i) and simplifying it further we get-

[tex]\sqrt{1-\frac{v^{2} }{c^{2} } }[/tex]= 1/2

1 - [tex]v^{2}[/tex]/[tex]c^{2}[/tex] = 0.25

[tex]v^{2}[/tex]/[tex]c^{2}[/tex] = 0.75

v/c = 0.866

v = 0.866 * c

Since we know that c is the speed of light in air and is equivalent to the value = 3*10^8, we get -

v = 0.866 * 3 * 10^8

Hence, the clock moves with a speed, v which is equivalent to  0.866 * 3 * 10^8 m/s.

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