Metals allow electrons to flow through and complete the circuit. Therefore they are called?

Answers

Answer 1

Answer:

the answer would be conductors


Related Questions

a force of 200N is exerted horizontally on a box of mass 18kg to displace it through a distance of 6m.how much work is done. Please help me and I will make you as brainliest

Answers

Answer:

1200

Explanation:

W=FD

W= work done

F= Force

D= distance

So, 200*6=1200

What's a Blackhole ?​

Answers

Answer:

A black hole is a region of spacetime where gravity is so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole.

What is the mass of a child in a wagon that has a velocity of 10 m/s and a Momentum of 30 KG* M/S
P=MXV

Answers

Explanation:

sinces : Momentum = velocity × mass

then : 30 = 10 × m and m = 30 ÷ 10 = 3 kg

I was playing goalie in a soccer league and made a save. The ball was traveling at 14 m/s and has a mass of 0.45 kg. How muck kinetic energy did the ball have when it hit me

Answers

Answer:

Kinetic energy = 44.1 J

Explanation:

Given:

Velocity of ball = 14 m/s

Mass of ball = 0.45 kg

Find:

Kinetic energy

Computation:

An item's kinetic energy is force it has as a result of its motion. It is the amount of work necessary to move a body of a known volume from rest to a specified velocity.

Ke = (1/2)(m)(v²)

Ke = (1/2)(0.45)(14²)

Ke = (1/2)(0.45)(196)

Kinetic energy = 44.1 J

Which of these results in kinetic energy of an object? (1 point)
Oposition
O motion
O mass
volume

Answers

Motion I’m pretty sure

Answer:

B. Motion

Explanation:

Kinetic energy is a property of a moving object or particle and depends on the motion and its mass.

Hope this helps!

an ocean wave has a wavelength of 3 meters and a frequency of 0.5 Hz. What is
the speed of the wave?

Answers

Answer:

1.5 m\s Ans ......

Explanation:

Data:

f = 0.5 Hz

w = 3 m

v = ?

Formula:

v = fw

Solution:

v = (0.5)(3)

v = 1.5 m\ s Ans ........

A 1202-kg car is stopped at a stoplight. Inside, the car has three occupants. The two passengers have a mass of 75 kg each, while the driver has a mass of 105 kg. The driver steps on the gas pedal, and the car begins to accelerate at a rate of 2.5 m/s2 . What is the force that the engine is applying to the car?

Answers

Answer:

F = 63.25 N

Explanation:

a = 2.5 m / s ²

m = 25.3 kg

F =?  

We calculate the force.

F = ma

F = (25.3 kg) (2.5m / s²)

F = 63.25 N

Solution.

F = 63.25 N

A sonar emits a sound signal of frequency 40000Hz, towards the bottom of the sea.
This signal is reflected on the body of a submarine after a delay of 0.3 seconds.
Given: Speed of sound in water is 1500 m/s.

Calculate the period of this wave.

Answers

Answer:

0.000025s

Explanation:

Period it’s. : T(s)= 1/f(Hz)=1/40000Hz=0.000025s

One of the world's largest Ferris wheels, the Cosmo Clock 21 with a radius of 50.0 m is located in Yokohama City, Japan. Each of the sixty gondolas on the wheel takes 1.00 minute to complete one revolution when it is running at full speed. Note: Ignore gravitational effects. What is the centripetal acceleration of the gondola when the Ferris wheel is running at full speed

Answers

Answer:

a = 0.55 m / s²

Explanation:

The centripetal acceleration is given by the relation

         a = v² / r

angular and linear velocities are related

         v = w r

we substitute

          a = w² r

In the exercise they indicate the angular velocity w = 1 rev/min, let's reduce to the SI system

          w = 1 rev / min (2pi rad / 1rev) (1min / 60s) = 0.105 rad/ s

let's calculate

          a = 0.105² 50.0

          a = 0.55 m / s²

A sound wave has a frequency of 250 Hz and a wavelength of 1.3 m. Calculate the speed of this waves.

Answers

Answer:

325 m/s

Explanation:

Frequency of the wave = 250 Hz

wavelength of the wave = 1.3 m

From the wave formula;

v = λf

v = wave speed

λ = wavelength

f= frequency

v = 250 * 1.3 = 325 m/s


there is T__ as much voltage. This
produces twice the current

Answers

Twice as much voltage

Which statement describes this image

Answers

Answer:

3rd one i think.

Explanation:

If an acid and a base react, the product(s) will be ____.
A salt
Neutral water
A salt and water
A metal and water

Answers

I’m pretty sure that if an acid and base react the products will be a salt

When you lift a box, what is the effort force?

Answers

Answer:

effort force: The force used to move an object over a distance. resistance force: The force which an effort force must overcome in order to do work on an object via a simple machine. ideal mechanical advantage: The factor by which a mechanism multiplies the force put into it.

Explanation:

An automobile starts at rest and accelerates at 57 m/s after a traffic light turns green.
How far will it have gone when it is traveling at 15 m/s?

Answers

u(initial velocity)
v(final velocity)
s(displacement)
a(acceleration)
t(time)

u=0 v=15 a=57??(not sure if you meant 5.7m/s²) s=?

v ² = u ² + 2 a s
15 ² = 0 ² + 2 (57) s
225= 114 s
s= 1.97 meters

If you meant 5.7
v ² = u ² + 2 a s
15 ² = 0 ² + 2 (5.7) s
225 = 11.4 s
s = 19.74 meters

An automobile accelerates at the rate of 57 m/s² with a final velocity of 15 m/s. Then, the distance covered by the automobile will be equal to 1.97 meters.

What is Acceleration?

A moving object's speed and orientation vary over time at a certain rate, which is known as acceleration.

An object or location is considered to be accelerated when it moves more quickly or more slowly in a straight path. A circle's motion increases despite its constant speed because its direction is always changing. For all other motions, by and to velocity is used.

Because of its magnitude and direction, it is a vector quantity.

As per the given information in the question,

Acceleration, a = 57 m/s²

Final velocity, v = 15 m/s

Use the equation of motion,

v² - u² = 2as

Put the values in the equation,

15² - 0 = 2(57)(s)

s = 225/114

s = 1.97 meters.

To know more about Acceleration:

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An 88.0 kg passenger is inside a 1450.0 kg elevator that rises 30.0 m in exactly 1.0 minutes. How much power is needed for the elevator's trip? ​

Answers

Answer:

Explanation:

what are the conditions for a body to be at equilibrium

Answers

Conditions for equilibrium require that the sum of all external forces acting on the body is zero (first condition of equilibrium), and the sum of all external torques from external forces is zero (second condition of equilibrium). These two conditions must be simultaneously satisfied in equilibrium.

Answer:

Explanation:

Conditions for equilibrium require that the sum of all external forces acting on the body is zero (first condition of equilibrium), and the sum of all external torques from external forces is zero (second condition of equilibrium). These two conditions must be simultaneously satisfied in equilibrium

Which best describes nuclear fusion?
A nucleus spontaneously splits and absorbs energy.
Two nuclei spontaneously combine and absorb energy.
A nucleus collides with a neutron and splits, releasing energy.
Nuclei combine to form a heavier nucleus, releasing energy.

Answers

Answer:

The statement that best describes nuclear fusion is;

Nuclei combine to form a heavier nucleus, releasing energy

Explanation:

In nuclear fusion, we have the reaction of the nuclei of two or more atoms coming together (combining) to form heavier elements and subatomic particles such as protons and neutrons accompanied by the release or absorption in energy depending on the difference between the mass of the reactants and the products

Some nuclear fusion reaction require an input of energy and such reactions are therefore not spontaneous

The best option is nuclei (two or more nuclei) combine to form a heavier nucleus, releasing energy.

Answer:

The answer is the last option or D

Explanation:

Nuclei combine to form a heavier nucleus, releasing energy.

Have a great day and stay safe!

PLEASE HELP 40 POINTS
A car of mass 700 kg and moving at a speed of 30 m/s collides with a stationary truck of mass 1400 kg, and the two vehicles lock together on impact. The combined velocity of the car and truck after the collision is m/s.

Answers

ohhh it would be 160 i just took this

Una mujer recorre una trayectoria rectilínea en su camioneta primera una velocidad constante de 50 km/h luego a 70 km/h y después de 60 km/h durante su trayecto a su trabajo ¿cuál será la velocidad promedio?

Answers

Answer:6/1 %50 x11

Explanation:

25-45

What specific space object is shown in the picture below?

A) Black hole

B) Red Dwarf

C) Brown Dwarf

D) Star

E) Galaxy

F) Wormhole

Answers

From context clues, I believe the correct answer is B) Red Dwarf!

Standing and holding a barbell that has a mass of 100kg at a height of 2m involves being done on the barbell to maintain
the position.

Answers

Answer:

1960Joules

Explanation:

Since we are not told what too find, we can as well find the Gravitational Potential Energy.

GPE = mass * acceleration due to gravity * height

GPE = 100*9.8 * 2

GPE = 980*2

GPE = 1960Joules

Hence the gravitational potential Energy is 1960Joules

Is this right HELP PLSSSS IF WHAT IS IT ! ! !

Answers

It’s correct

00000000000

The reason a penny thrown straight up inside a bus will come back to your hand is that you, the bus, the air inside the bus, and the penny are all moving at the same velocity.The law of inertia applies to both moving and nonmoving objects.

this is a true or false question help

Answers

Answer:

its false

Explanation:

since the penny is thrown straight up its not going to move forwad with you and the bus since it has no forces pushing on it. If the bus wasn't moving it would land back on your hand

6. Calculate the mass of mass A in the diagram. The frame joining
the masses is massless.
A
centre of mass
15 cm
30 cm
15 cm
3 kg
8 kg
40 cm
Figure 4.36​

Answers

Answer:

calculate the mass of mass A i the diagram .the frame joining the mass is massless

Explanation:

The mass of mass A the diagram .the frame joining the mass is massless.

What is Mass?

The unique location in an object or system that can be used to describe how the system reacts to outside forces and torques is referred to as the "center of mass" or "center of gravity" in a uniform gravity field.

The idea of the center of mass is that it is the average of all the masses divided by the distances between them. With regard to the torques produced, that is comparable to balancing a seesaw around a pivot point in one plane.

Therefore, The mass of mass A the diagram .the frame joining the mass is massless.

To learn more about Masses, refer to the link:

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Write the word conduction, convection or radiation in the blanks in front of 1-13
1.
Walking on the hot sand on a beach
2.
A ceiling fan forcing the warm air downward.
3.
Feeling heat from a campfire.
Chocolate candy melting in your hand.
5.
Air in the atmosphere rising and falling.
6.
Heat from the sun warming a swimming pool.
7.
Changing a light bulb while it's still hot.
8.
Heat from the hood of a car when you touch it.
9.
Feeling the heat from a stove burner without touching it.
10.
Boiling water moving in a circular motion
11. Energy that is transferred in waves or particles.
12. Energy that is transferred by direct contact.
13. Energy that is transferred through a fluid where hot rises and cold
sinks.

Answers

Answer:

1. conduction

2. convection

3. radiation

4. conduction

5. convection

6. radiation

7. conduction

8. conduction

9. radiation

10. convection

11. radiation

12. conduction

13. convection

Question 4 of 10
Samples of different materials, A and B, have the same mass, but the sample
of B is higher in density. Which statement could explain why this is so?
A. The sample of material B has greater volume than the sample of
material A.
B. The particles that make up material A are more closely packed
together than the particles that make up material B.
C. The particles that make up material B are more closely packed
together than the particles that make up material A.
D. The particles that make up material A have more mass than the
particles that make up material B.
SUBMIT

Answers

The answer is c. The particles of b are more closely packed

Calculate the net force of the object in the image shown 20N 15 N ​

Answers

It’s going to be 35 bc it’s going the same way so it’s gonna be 35n

What do you hope to learn from participating in the activity you selected?

Answers

When selecting an activity you are always looking to learn new skills from that activity and improve on them

For example
If you participated in a cooking activity you will always be looking to learn cooking skills and abilities.

Answer:

I hope to learn the basic moves and stances of boxing. I understand that I won't be boxing with another person, but that’s OK. These exercises seem like a good starting point. I really want to understand how to put together combinations. I’ve seen professional boxers throw combinations on TV, but their hands move so quickly that I can’t catch the finer details of the sport. Maybe this will be an opportunity for me to find out more.

Explanation:

Everyone open this please!

There are accounts spreading around the same link to answers of questions saying that it’s the only way to type it. Don’t open them! I don’t know what it is but I’ve seen the same link multiple times so it seems sketchy.

Answers

Answer:

yeah i knowwwwwwwwwwwwww

Explanation:

Answer:

I sit by myself talking to the MOOOOOOOOONNNNNNNN

Explanation:

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