What is the magnitude of the electric field between the two electrodes in ionization type detectors?

Opposite attract , this is the magnetic south pole

option (b) ✔

Answer:

B

Explanation:

Opposites attract......so the end of the needle pointing to the North Pole is the South pole of the magnetic needle.

Answer:

See below

Explanation:

Each resistor has 6 v applied across it

rememeber

V = IR     then     V/R = I

for the 6 Ω      6 v /6Ω  = 1 amp

for the 3 Ω       6v /3Ω = 2 amp

Answer:

M. Magnetism is a property of individual atoms.

Explanation:

when a magnet is broken into pieces the new pieces behave like the original magnet this observation shows that magnetism is the property of individual atoms.

The highest entropy for the jar of marbles is represented by the marbles are arranged in a random order.

Entropy is the measure of the degree of disorderliness of a system or degree of randomness of a system.

Entropy of a system increases with increase in randomness of the system or disorderliness of the system.

Thus, the highest entropy for the jar of marbles is represented by the marbles are arranged in a random order.

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Answer:

143.6/21.2

=6.773584906

=6.8

Velocity is directly proportional to wavelength and frequency.

There is direct relationship present between velocity and frequency as well s wavelength. If velocity increases, wavelength and frequency are also increase and vice versa. The higher the speed of a sound, the greater its wavelength for a given frequency.

So we can conclude that Velocity is directly proportional to wavelength and frequency.

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The third charge is in equilibrium, 2a/3

An electric property associated with each point in space when charge is present in any form.

The magnitude and direction of the electric field are expressed by the value of E, called electric field strength or electric field intensity or simply the electric field.

According to the question,

force on it due to +4e= force due to +e

[tex]\frac{ k(4e)q}{x^{2} } = \frac{ k(e)q}{(a-x)^2}[/tex]

4(a-x)² = x²

2(a-x)=x

2a-2x =x

x= [tex]\frac{2a}{3}[/tex]

Therefore,

The position along the line XY is [tex]\frac{2a}{3}[/tex]

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Answer:

none

Explanation:

Given that, 1 Liter equals 1.0567 quartz and 1 quartz equals 32 oz, the volume 1.00 oz equals 0.02957 L.

Given that;

First, we convert 1.00 oz to qt

32 oz = 1 qt

1.00 oz = x

x = 1.00 / 32

x = 0.03125 qt

Now, we convert 0.03125 qt to liter

1.0567 qt = 1 L

0.03125 qt = x

x = 0.03125 / 1.0567

x = 0.02957 L

Given that, 1 Liter equals 1.0567 quartz and 1 quartz equals 32 oz, the volume 1.00 oz equals 0.02957 L.

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Answer:

D

Explanation:

The friction force is the weight force times the coefficient of friction. So diving by the coefficient gives you the weight force which is equivalent to the normal force.

The equation that we can used to determine the frictional force using the coefficient of kinetic friction and the normal force is given by the expression : F = u N.

Where N is the normal force by the weight of the body.

Frictional force is a type of force acting on a body to prevents its motion. Hence, the frictional force is always negative. Frictional force acting on an object is making a resistance to the motion of the object.

There are both kinetic frictional force and static frictional force. The coefficient of frictional force is the ratio of the frictional force to the normal force on the object. The normal force on the object is equal to m g that is the force by its own weight.

If u is the coefficient of kinetic friction and N be the normal force acting on the object, then the force of kinetic frictional force F is given by,

F = u N.

Where N = mg.

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She can use the information of redshift of a celestial body is to find the age and distance of the object.

'Red shift' is a critical idea for astronomers. The frequency of the light is increased, so the light is observed as moving towards the red side of the range.

Tabitha knows the redshift value of a particular celestial object. She uses this information to observe the consequence of the redshift.

Thus, the red shift value is used to determine the age and distance of the object.

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Answer:

A (the age and distance of the object)

Explanation:

Answer = B

Explanation:

Sustainability is the most appropriate as it means meeting our own needs without compromising the ability of future generations to meet their own needs.

The height to which the ball attained, given the data is 7.58 m

v² = u² – 2gh (since the ball is going against gravity)

0² = 12.192² – (2 × 9.8 × h)

0 = 12.192² – 19.6h

Collect like terms

0 – 12.192² = –19.6h

–12.192² = –19.6h

Divide both side by –19.6

h = –12.192² / –19.6

h = 7.58 m

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The generated statements that set the properties of the labels, buttons, and forms end up automatically within the InitializeComponent() method.

The InitializeComponent method in programming is the that have code that works with codes that  creates and initializes the creates and initializes the user interface objects .

Conclusively, when a statement is generated, to  when set the properties of the labels , it will definitely been felt in the InitializeComponent() method automatically.

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Mira is much bigger than the Sun.

Only very massive stars will go through a supernova stage, causing the outer layer to explode away and the core to collapse in on itself, becoming very dense.

Answer:

refer to the above attachment

Point of Aries is a celestial body which can be used to measure sidereal day.

A sidereal day can be defined as an amount of time that it takes planet Earth to rotate once about its axis relative to the stars, so that distant stars appear within the same position in the sky.

Based on astronomical information and records, Point of Aries is a celestial body which can be used to measure sidereal day because it's the amount of time between two (2) consecutive transits of the First Point of Aries.

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A. The final temperature of the system is 0°C.

B. The amount of ice (if any) remaining is  0.0331 g

C. The initial temperature of the water that would be enough to just barely melt all of the ice is 20.57 °C.

The specific heat is the amount of heat required to change the temperature by 1°C. It is denoted by C.

Heat lost or gained is represented as

Q = m C ΔT

Given, Mass of ice, mice = 9x10⁻² kg, Mass of water, mw =0.35 kg, T = 13 °C

A. If ice is in excess, final water temperature will be 0°C.

B. Specific heat of water Cp = 1000 cal/kg°C

Latent heat of ice L = 80 kcal/kg

In that case, heat lost by water =Heat gain by ice

Q = mCp x dT = mL

0.35 x 1000 x 13 = m x 80 x 1000

m = 0.0569 kg of ice.

The gram of ice remaining = 0.09 - 0.0569

                                             = 0.0331 gram of ice.

Thus,  the amount of ice remaining is 0.0331 g

C. Heat required to melt 90 gram of ice,  Q  mL

Q = 90 x 80 = 7200 cal.

If the initial temperature of water needed = T,

mCp x dT = mL

350 x T = 7200

T = 20.57 °C

Thus,  the initial temperature of the water that would be enough to just barely melt all of the ice is  20.57 °C.

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Answer:

Yes

Explanation:

Average velocity is the ratio of total displacement and time taken for that displacement:

[tex]average \space\ velocity = \frac{displacement}{time}[/tex]

This means if displacement is zero, then average velocity will also be zero.

Displacement is zero when an object moves some distance in one direction, and then moves the same distance but in the opposite direction.

∴ As it is possible for displacement to be zero, it is also possible for average velocity to be zero.

The given statement is true ultrasonic cleaners are based on the same principle as echolocation in bats and some other animals.

A physiological method for identifying far-off or unseen items (like prey) using sound waves that the objects reflect back to the source, such as a bat.

High-frequency sound waves are used in ultrasonic cleaning to scour clean objects that are submerged using liquid as a medium.

The cavitation of the solution's molecules is brought on by the high-frequency sound waves, which are generally 40 kHz in frequency.

Although bats have developed an advanced kind of echolocation that allows them to travel and find food in the dark, they have vision that is comparable to that of humans.

Bats use high frequency sound pulses emitted through their mouth or nose and listen for the echoes to achieve echolocation.

It is accurate to say that ultrasonic cleaners work on the same principles as creatures like bats and certain others that use echolocation.

Hence the given statement is true.

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AM and FM are the two types of modulation that an omnidirectional antenna transmit.

An omnidirectional antenna is also referred to as an isotropic antenna and it can be defined as a type of antenna that is designed and developed to radiate equal radio power or intercept radio-frequency (RF), especially in all directions perpendicular to an axis.

In Science, there are two types of modulation that an omnidirectional antenna transmit and this include the following:

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Answer:

Newton's second law states that force is directly proportional to the product of mass and acceleration.

so if you hit a baseball with a bat it will accelerate according to the applied force.

The apparent magnitude of a star refers to its brightness as seen from your eyes and absolute magnitude being the actual brightness of a star.

Magnitude can be defined as a unitless measure which is used to show the brightness of an object in comparison with the brightness of another object.

Basically, there are two types of magnitude and these include the following:

In conclusion, the apparent magnitude of a star refers to its brightness as seen from your eyes and absolute magnitude being the actual brightness of a star.

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I'm pretty sure it's apparent; absolute

A proton travels through a constant magnetic field in the negative y-direction while moving in the negative x-direction. The proton will be subject to a magnetic pull that is directed into the page. Option B is correct.

Hold a current-carrying conductor in your right hand with your thumb pointing in the direction of the current then wrap your fingers around the conductor and orient them in the direction of the magnetic field lines.

A proton travels through a constant magnetic field in the negative y-direction while moving in the negative x-direction.

The proton will be subject to a magnetic pull that is directed into the page.

Hence, option B is correct.

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The velocity of the 2x10^4 kg car just before the collision is 0 m/s.

When two bodies of different masses move together each other and have head on collision, they travel to same or different direction after collision.

The external force is not acting here, so the initial momentum is equal to the final momentum. For inelastic collision, final velocity is the common velocity for both the bodies.

m₁u₁ +m₂u₂ =(m₁ +m₂) v

Substitute the values for m₁ = 1.5 x 10^4 kg, m₂ =2 x 10^4 kg and u₁ =7 m/s, the final velocity is 3m/s/

1.5 x 10^4 x 7+2 x 10^4 x u₂ = (1.5 x 10^4 + 2 x 10^4) x 3

u₂  = 0 m/s

So, the car with mass  2x10^4 kg is stationary.

Thus, the  velocity of the 2x10^4 kg car just before the collision is 0 m/s.

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Answer:

D

Explanation:

PCN was discovered in mold

Answer:

The equation for wavelength is λ = v/f

Explanation:

λ is wavelength

v = velocity

f = frequency

The magnitude of the magnetic force acting on the charge is 2.34×10⁻³ N.

A magnetic force is the force that act in a magnetic field.

To calculate the magnetic force, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 2

Hence, the magnitude of the magnetic force acting on the charge is 2.34×10⁻³ N.

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