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
arsen [322]
3 years ago
15

Earth's magnetic field is generated by

Physics
2 answers:
evablogger [386]3 years ago
6 0
The movement of electrical charges inside the earth
qwelly [4]3 years ago
5 0

Answer:

Explanation:

The magnetic field, is generated by electric currents due to the motion of convection currents of molten iron in the Earth's outer core : these convection currents are caused by heat escaping from the core, a natural process called a geodynamo.

You might be interested in
What would make oppositely charged objects attract each other more?
Elina [12.6K]

Answer:

a: increasing the positive charge of the positively charged object and increasing the negative charge of the negatively charged object

Explanation:

5 0
3 years ago
An internal combustion engine uses fuel, of energy content 44.4 MJ/kg, at a rate of 5 kg/h. If the efficiency is 28%, determine
Fudgin [204]
Efficiency =  Power Output / Power Input

Power Input = Rate of Energy input = 44.4 MJ/kg * 5 kg/h

 = 222 MJ/h

But 1 hour = 3600seconds

222 MJ/h = 222 MJ/3600s =  0.061667 MW              J/s = Watts

Power input = 0.061667 MW = 61 667 W

From  Efficiency =  Power Output / Power Input

   28% =  Power Output / 61667

   Power Output = 0.28 * 61667

   Power Output = 17266.76 W
 
  Power Output = 17 267 W

 Rate of heat Rejection = Power input - Power output

                                        = 61667 - 17267 = 44400 W

Rate of heat Rejection = 44 400 W.


C- Copyright.
5 0
3 years ago
14) the formula k2s indicates that
Ivan
14.) c) there are two potassium ions for each ion of sulfur. 15.) b) Lithium fluoride. 16.) d) carbon-12 atom. 17.) <span>c) nonmetal fluorine.</span>
6 0
3 years ago
What is a non-example of Newton's 3rd law of motion?
kirill [66]

Answer:

Unbalanced forces are not examples of Newton's third law because not all opposite reactions are unbalanced forces.

Explanation:

4 0
3 years ago
An electric light is plugged into a 120-V outlet. If the current in the bulb is 0.50 A, how much electrical energy does the bulb
ioda

Answer:

= 54,000 Joules or 54 kJ

Explanation:

Electrical energy is given by the formula;

E = VIt; where V is the potential difference in volts, I is the current and t is the time in seconds.

Therefore;

Electrical energy = 120 V × 0.50 A × 15 ×60 seconds

                            = 54,000 Joules

Thus; the electrical energy is 54,000 joules or 54 kJ

7 0
3 years ago
Other questions:
  • In the case of unlike magnetic poles unlike electric charges
    8·1 answer
  • 4. The diameters of bolts produced by a certain machine are normally distributed with a mean of 0.35 inches and a standard devia
    10·1 answer
  • Which of these is NOT a vector quantity?
    6·1 answer
  • Please Help!!!
    10·1 answer
  • The image below shows a photo taken with a built-in lens of a digital camera. The bottom photo is taken with the same camera, bu
    11·1 answer
  • As the frequency of the ac voltage across a capacitor approaches zero, the capacitive reactance of that capacitor:_______.
    10·1 answer
  • a student raises a 4kg ball to an unknown height on a building. It is calculated that the ball has a speed of 30m/s when it hits
    11·1 answer
  • Where conventional relays, contactors and switches, which have arcing contacts, are installed in Class I, Division 1 and 2 locat
    15·1 answer
  • A 400.0-m-wide river flows from west to east at 30.0 m/min. Your boat moves at 100.0 m/min relative to the water no matter which
    15·1 answer
  • The following number - 0.050437 - written to TWO significant figures would be
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!