1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Gekata [30.6K]
3 years ago
6

What must happen to the electrons in a material to create an electric current?

Physics
1 answer:
bezimeni [28]3 years ago
6 0
They have to have a positive charge and negative so then thats what u get
You might be interested in
In which direction does a convergent boundary move?
VladimirAG [237]

Answer:

Toward each other teehee merry christmas

Explanation:

7 0
3 years ago
Read 2 more answers
A sound wave was determined to have a frequency of 0.3 Hz, speed of 150 cm/s, and amplitude of 2 cm. Find its wavelength.
fredd [130]

Answer:

5 m

Explanation:

From the question,

v = λf....................... Equation 1

Where v = speed of the sound wave, λ = wavelength of the sound wave, f = frequency of the sound wave.

make λ the subject of the equation

λ = v/f..................... Equation 2

Given: v = 150 cm/s = 1.5 m/s, f = 0.3 hz.

Substitute these values into equation 2

λ = 1.5/0.3

λ = 5 m.

7 0
3 years ago
Please help
iVinArrow [24]
Answer is 4,400,000 kg • m/s
4 0
3 years ago
Charged objects have a _________ charge.<br>A) net, B) moving, C) positive, D) negative
marissa [1.9K]
C. positive, this is right because when something it is charged kinda how when you charge your phone it has energy now so that means it is positive but when its dead it is negative
5 0
3 years ago
A rocket sled with an initial mass of 3 metric tons, invluding 1 ton of fuel, rests on a level section of track. At t=0, the sol
Katena32 [7]

Answer:

v = 719.2 m / s and     a = 83.33 m / s²

Explanation:

This is a rocket propulsion system where the system is made up of the rocket plus the ejected mass, where the final velocity is

           v - v₀ = v_{e} ln (M₀ / M)

where v₀ is the initial velocity, v_{e} the velocity of the gases with respect to the rocket and M₀ and M the initial and final masses of the rocket

In this case, if fuel burns at 75 kg / s, we can calculate the fuel burned for the 10 s

            m_fuel = 75 10

            m_fuel = 750 kg

As the rocket initially had a mass of 3000 kg including 1000 kg of fuel, there are still 250 kg, so the mass of the rocket minus the fuel burned is

              M = 3000 -750 = 2250 kg

let's calculate

            v - 0 = 2500 ln (3000/2250)

            v = 719.2 m / s

To calculate the acceleration, let's use the concept of the rocket thrust, which is the force of the gases on it. In the case of the rocket, it is

             Push = v_{e} dM / dt

let's calculate

             Push = 2500  75

             Push = 187500 N

            If we use Newton's second law

             F = m a

             a = F / m

let's calculate

              a = 187500/2250

              a = 83.33 m / s²

7 0
3 years ago
Other questions:
  • Saturn moves in an orbit around the Sun with radius 10 AU. How many degrees does it move on the Celestial in one year? (Hint: Ca
    6·1 answer
  • A. If you have a Periodic Table that is NOT color coded, describe WHERE to look on the Periodic Table to find elements which hav
    11·2 answers
  • What causes lightning?​
    5·2 answers
  • In the United States, household electric power is provided at a frequency of 60 HzHz, so electromagnetic radiation at that frequ
    6·1 answer
  • Scientific theories are deductive in nature.?
    5·1 answer
  • Sound is repeated near hills.​why
    15·1 answer
  • 0.125 C of charge flow out of a
    14·1 answer
  • Which phrase best completes the diagram?
    10·2 answers
  • If the potential is given by v = xy - 3z-2, then the electric field has a y-component of?
    11·1 answer
  • At what time after being ejected is the boulder moving at a speed 20.7 m/s upward?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!