why do metals conduct electricity​

Answer:

i would think the first two, but i cant be sure.

Explanation:

C) 0 cause it’s a stable reaction

Answer:

C 0

Explanation:

Its an unstable reaction

Answer:

C. Money to pay off other debts and interest

Money to pay off other debts and interest are usually considered wise and justified.

Answer:Option c

Explanation:

Personal loans give persons an access to funds that can be used as their wish and they are unsecured. This means that they do not need you to put down collateral for obtaining the loan.  

A personal loan usually has higher rate of interests than that of secured loan. They offer lower rate of interest than credit cards. It is advisable to use personal loans to pay off debts form credit cards will support you in saving interests and help you to get out of the debt faster period of time.

Answer:

Allows current to flow in one direction.

Explanation:

Answer:Diodes can be used as rectifiers, signal limiters, voltage regulators, switches, signal modulators, signal mixers, signal demodulators, and oscillators. The fundamental property of a diode is its tendency to conduct electric current in only one direction.

Explanation:

Answer:

I believe it is true.

Explanation:

Hope my answer has helped you!

Hello There!

This is "True"

For a stationary observer, when the source of sound is moving, its pitch appears to change.

Answer:

the correct answer is homonyms

Explanation: Hope it helped

Answer:

MINIMAL PAIRS

Explanation:

got it correct on plato

Black holes.

Although black holes don't have surface they are the only known object that has gravity that not even light can escape it.

Answer:

15 N

Explanation:

The magnetic force on a piece of current-carrying wire is given by:

[tex]F=ILB sin \theta[/tex]

where

I is the current in the wire

L is the length of the piece of wire

B is the magnetic field strength

[tex]\theta[/tex] is the angle between the direction of B and I

In this problem:

I = 10 A

B = 0.3 T

L = 5 m

[tex]\theta=90^{\circ}[/tex]

Substituting into the equation, we find

[tex]F=(10 A)(0.3 T)(5 m) sin 90^{\circ}=15 N[/tex]

To calculate the magnetic force on a 5m wire carrying a 10 amps current in a 0.3 tesla magnetic field at a 90-degree angle, we use the formula F = IBL sin(θ). The result is a magnetic force of 15 Newtons.

The magnitude of the magnetic force on a 5m length of wire carrying a current of 10 amps and situated at a 90-degree angle with respect to the direction of an external magnetic field of 0.3 tesla.

To find the magnitude of the magnetic force, we use the formula F = IBL sin(θ), where F is the force, I is the current, B is the magnetic field strength, L is the length of the wire, and (θ) is the angle between the wire and the magnetic field.

Given that I = 10 A, B = 0.3 T, L = 5 m, and (θ) = 90 degrees (or \(\pi/2\) radians), the sine of 90 degrees is 1. Therefore, F = 10 A x 0.3 T x 5 m x 1 = 15 N.

The magnitude of the magnetic force on the wire is 15 Newtons.

Answer:

Electronics convey information with electrical patterns called analog and digital signals.

Explanation:

A digital signal encodes information as a string of 1's and 0's. Pulsing a current on and off can produce a digital signal. When the current is off, it represents a 0.

an orifice tube is located within the tube between the condenser & the front evaporator

Answer:

all scenarios are using the same power

Explanation:

we know that power is defined as P(Watts)=W(Joules)/t(seconds).

When applying this formula to each of the scenarios we find:

[tex]\frac{120J}{6s}=\frac{160J}{8s}=\frac{200J}{10s}= 20W[/tex]

Done

Answer:pretty sure its mitochondria

Explanation:

The two major types of energy is option d, kinetic and potential energy.

Answer:

the answe is d your welcome

Explanation:

Answer:

Perpendicular to the electric field and magnetic field

Explanation:

Electromagnetic waves are transverse waves composed by the perpendicular oscillating electric and magnetic fields.

EM waves have both Electrical and magnetic features.

they travel in the velocity of light (3*10⁸ ms⁻¹)

they does not require any media to travel. It has two perpendicular electric field and the magnetic field which are perpendicular to each other

They travel perpendicular to each of those electric and magnetic fields.  

Answer:

2⅓ m/s²

Explanation:

Average acceleration is the change in velocity over change in time.

a = Δv / Δt

a = (13 m/s - 6 m/s) / 3s

a = 2⅓ m/s²

a ≈ 2.33 m/s²

Answer:

The correct answer is A

Explanation:

I did the test twice and A) 2.3 x 10^7 J was correct.

Final answer:

The potential energy converted into thermal energy (heat) is 2.38 x 10^7 J.

Explanation:

The amount of potential energy converted into thermal energy (heat) can be calculated using the principle of conservation of energy. The initial potential energy of the ride is equal to the final kinetic energy at the bottom of the drop. The change in potential energy is given by the formula ΔPE = mgh, where m is the mass, g is the acceleration due to gravity, and h is the height. Substituting the given values, we have ΔPE = (3.5 x 10^4 kg)(9.8 m/s^2)(71.6 m) = 2.38 x 10^7 J.

Answer: the answer would be X

Explanation:

Answer:

X

Explanation:

The energy possessed by the position of the body is called gravitational energy. The formula for the gravitational potential energy is given by

U = m x g x h

Gravitational Potential energy of W:

m x g x h = m x 1.6 x 32 = 51.2 m

Gravitational Potential energy of X:

m x g x h = m x 3.7 x 16 = 59.2 m

Gravitational Potential energy of Y:

m x g x h = m x 1.6 x 35 = 56 m

Gravitational Potential energy of Z:

m x g x h = m x 3.7 x 12 = 44.4 m

The gravitational potential energy is maximum for X

The answer is:

The heat absorbed by the iron skillet is equal to 473 Joules.

To solve the problem, we need to use the formula to calculate the quantity of heat absorbed, also, we need to remember that specific heat of the iron, which is equal to:

[tex]s=\frac{0.45J}{g*\°C }[/tex]

Where,

J, is the energy transferred.

g, is the mass of the object or substance.

°C, is the temperature measured in Celsius degrees.

We can calculate the heat absorbed using the following equation:

[tex]q=m*dT*s[/tex]

Where,

q, is the heat absorbed

m, is the mass of the object

dT, is the change in temperature

s, is the specific heat of the substance.

We are given the following information:

[tex]mass=70g\\dT=28\°C-13\°C=15\°C\\s=\frac{0.45J}{g*\°C }[/tex]

So, substituting and calculating, we have:

[tex]q=m*dT*s[/tex]

[tex]q=70g*15\°C*\frac{0.45J}{g*\°C }=472.5J=473J[/tex]

Hence, the heat absorbed is equal to 473 Joules.

Have a nice day!

Answer:

about to be dropped-------------gravitational potential energy

falling down.................................Kinetic energy

hitting the floor.............................potential energy

moving back up...........................Kinetic energy

Explanation:

When the ball is about to be dropped it possesses potential energy.This is the energy stored in an object.When the ball is released, the potential energy will be converted to kinetic energy.Kinetic energy is the energy an object has due to its motion.When the ball hits the floor, energy is lost in form of siund and heat.The kinetic energy when falling will be transformed to potential energy which is lesser than the initial one when the ball was about to be dropped.The ball bounces back after hitting the floor.The potential energy is converted back to kinetic energy .

Answer:

About to be dropped-Gravitational potential energy

Falling down-Kinetic energy

Hitting the floor-Potential energy

Explanation:

Answer:

139 N

Explanation:

Thats the answer on e2020

The significance of the force of hysteria force inside the path of 98 N2 is 139 N.

SOLUTION:

given force = 98 N

   the angle of pulling = 22 °

       force = 98 cos22°

                   = 139 N

The importance of the pressure is the variety that represents the energy of the pressure. for instance: think the force is = 10 N closer to the east. 'towards east' shows the path at the same time as '10' is the importance of the pressure. So basically, magnitude is the 'value' or 'amount' of any bodily amount.

The bodily force exerted on an item. The force implemented is perpendicular to the surface of gadgets in line with unit area. The simple formula for stress is . Unit of stress is Pascals (Pa).

A simple instance of strain can be visible via preserving a knife to a bit of fruit. if you hold the flat part of the knife against the fruit, it won't cut the floor. The pressure is spread out of a huge place.

The frenzy or pull on an item with mass that causes it to alternate its pace. Force is an outside agent able to change the state of relaxation or movement of a particular frame.

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Answer:

Oi, mate its false

Explanation:

because if an leaf floats down from a tree it is not considered an object for a free-fall

Answer:

False

Explanation:

Answer:

atoms

Explanation:

Answer:

The answer is atoms

Explanation: A definition of "matter" more fine-scale than the atoms and molecules definition is: matter is made up of what atoms and molecules are made of, meaning anything made of positively charged protons, neutral neutrons, and negatively charged electrons.

Answer:

mix of red and orange

Explanation:

The lithium emission spectrum indicates high intensity at the wavelength of 600nm to 700nm

In the visible light spectrum, colors that are in this range are;

Red=700 - 630 nm

Orange= 630 to 590nm

A sample of lithium gas that has absorbed a lot of energy will show  a mix of red and orange colors

Answer:mix of red and orange

Explanation:

Answer:

C or D I would think

Explanation:

Answer:

the answer is d

Explanation:

Answer:

Explanation:

I can give you four for certain.

Copper

Gold

Silver

Aluminum

Answer:

is the letter A

Explanation:

Out of choices which is given above, Wicker basket is the only product which is made from a synthetic material.

Answer: Option D

Explanation:

Cotton is entirely different from synthetic fibers which is very soft fabric and absorbs heat ghastly compared to other materials. People living in area with mostly summer prefer cotton. Leathers are used in cold climatic regions which protects them from experiencing cold temperature. Tissue papers are made from paper pulp and so from the given options wicker basket is the only one made of synthetic material.

Answer:

The answer is 1.8 m/s.

Explanation:

Formula of speed is given below:

Speed, V = Distance / time

Given data:

Distance, d = 18 m

Initial veliocity = 20 m/s  

Final velocity = 0 m/s

Time taken, t = ?

Find average speed:

Average speed =( initial velocity + final velocity)/2

                        = (20 + 0)/ 2

                         = 20/2 = 10 m/s

Average speed  = distance / time

Time = distance / Average speed

Time, t = 18m / 10ms-1 = 1.8 m/s

The time taken by the car is 1.8 m/s

Answer: B

f=c/wavelength

So we see if the wavelength is larger then the frequency gets smaller and the smaller the wavelength the higher the frequency.

Any questions feel free to ask. Thanks

Final answer:

Glen's correct explanation is that if a wave has a long wavelength, it will have a low frequency, showing the inverse relationship between frequency and wavelength for electromagnetic waves.

Explanation:

Glen is explaining the relationship between the wavelength and frequency of electromagnetic radiation to his friend, Harold. The correct explanation of this relationship is embodied in option B: If a wave has a long wavelength, it will have a low frequency. This principle is underpinned by the universal speed of light (c), at which all electromagnetic waves travel. The relationship among these characteristics can be represented by the equation c = fλ, where c is the speed of light, f is the frequency, and λ is the wavelength. Thus, for all electromagnetic waves, a greater frequency implies a smaller wavelength and vice versa, demonstrating an inverse relationship between these two properties.

Answer:

0.799 m/s if air resistance is negligible.

Explanation:

For how long is the ball in the air?

Acceleration is constant. The change in the ball's height [tex]\Delta h[/tex] depends on the square of the time:

[tex]\displaystyle \Delta h = \frac{1}{2} \;g\cdot t^{2} + v_0\cdot t[/tex],

where

Solve for [tex]t[/tex].

[tex]\displaystyle \Delta h = \frac{1}{2} \;g\cdot t^{2} + v_0\cdot t[/tex];

[tex]\displaystyle -0.950 = \frac{1}{2} \times (-9.81) \cdot t^{2}[/tex];

[tex]\displaystyle t^{2} =\frac{-0.950}{1/2 \times (-9.81)}[/tex];

[tex]t \approx 0.440315\;\text{s}[/tex].

What's the initial horizontal velocity of the ball?

Assume that air resistance is negligible. Only gravity is acting on the ball when it falls from the tabletop. The horizontal velocity of the ball will not change while the ball is in the air. In other words, the ball will move away from the table at the same speed at which it rolls towards the edge.

[tex]\begin{aligned}\text{Rolling Velocity}&=\text{Horizontal Velocity} \\&= \text{Average Horizontal Velocity}\\ &=\frac{\Delta x}{\Delta t}=\frac{0.352\;\text{m}}{0.440315\;\text{s}}=0.0799\;\text{m}\cdot\text{s}^{-1}\end{aligned}[/tex].

Both values from the question come with 3 significant figures. Keep more significant figures than that during the calculation and round the final result to the same number of significant figures.

The steel ball was rolling at approximately 0.8 m/s when it fell off the table. This was determined using the physics principles of projectile motion and the known values of acceleration due to gravity, vertical displacement, and horizontal displacement.

This physics question involves the concept of projectile motion. Contrary to horizontal motion, the vertical motion is affected by gravity. Ignore air resistance for simplicity.

When the steel ball falls off the table, it freely falls under acceleration due to gravity which is approximately 9.8 m/s², being directed downward. From the time it leaves the edge of the table to the time it hits the ground, it experiences a vertical displacement of 0.950 m (the height of the table).

Let's use the equation: y = V0yt + 0.5gt². Here y is the displacement (0.950 m), g is acceleration due to gravity (9.8 m/s²), and V0y is the initial vertical velocity of the ball, which is zero since the ball is moving horizontally on the table. So, we can solve this equation for time (t).

Inserting known values: 0.950 m = 0.5*(9.8 m/s²)*t². We solve for t and get t = sqrt((2*0.950 m)/(9.8 m/s²)) ~= 0.44 s.

The speed of the ball right before it falls off the table is the horizontal component of velocity, which remains constant throughout the whole motion. The horizontal distance the ball travels is 0.352 m. We can use this along with the time it takes to travel this distance to solve for horizontal speed (Vx).

Since Vx = x/t, we have Vx = 0.352 m / 0.44 s, so Vx ~= 0.8 m/s.

So, the steel ball was rolling at approximately 0.8 m/s when it fell off the table.

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