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Natasha2012 [34]
3 years ago
8

The source of the earth’s magnetic field is found in the _____.

Physics
2 answers:
liraira [26]3 years ago
6 0

Answer:

Molten iron and metals in the earth's core

Explanation:

The core of earth consists of molten iron and metals which are continuously spinned due to the rotation of earth. This spinning of earth produces result equivalent to “passing of electric current through a coil to produce magnetic field”. The neutral particles in the core are charged and thus the flow of neutrally charged particle creates a magnetic field.

telo118 [61]3 years ago
5 0
The source of the earth's magnetic field is found in the ;LIQUID MAGNETIZED IRON IN THE CORE OF THE EARTH. The earth's magnetic field is believed to be generated very deep down in the earth's core as a result of molten iron which it contains. 
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A worker drives a 0.562 kg spike into a rail tie with a 2.26 kg sledgehammer. The hammer hits the spike with a speed of 64.4 m/s
zubka84 [21]

Answer:

Explanation:

Given that,

Mass of sledge hammer;

Mh =2.26 kg

Hammer speed;

Vh = 64.4 m/s

The expression fot the kinetic energy of the hammer is,

K.E(hammer) = ½Mh•Vh²

K.E(hammer) = ½ × 2.26 × 64.4²

K.E ( hammer) = 4686.52 J

If one forth of the kinetic energy is converted into internal energy, then

ΔU = ¼ × K.E(hammer)

∆U = ¼ × 4686.52

∆U = 1171.63 J

Thus, the increase in total internal energy will be 1171.63 J.

4 0
3 years ago
Examine the symbols below:
iris [78.8K]

Answer: Symbol A

Explanation:

The four symbols described here represent:

- Symbol A shows two dots and a line draw from one not connected to the other.  --> this is an open switch. A switch is component of a circuit that is used to open/close the circuit in order to interrupt/allow the flow of current through the circuit. In this case, the switch is open, since the line does not connect the second dot.

- Symbol B shows two dots and a line draw from one connected to the other.  --> this is the symbol used to represent the switch when it is closed, so it is a closed switch.

- Symbol C shows vertical lines in the pattern long, short, long, and short with a plus and minus symbol on it. --> this symbol represents a battery, which consists of two or more cells and provides the electromotive force that pushes the electrons along the circuit.

Therefore, the correct symbol representing the open switch is

Symbol A

6 0
3 years ago
Read 2 more answers
David wants to experiment with the device, so he connects an ammeter into the circuit and measures 11.5 AA when the device is co
Mandarinka [93]

Answer:

2.42hours

Explanation:

To calculate the time taken to boil the cup of water, we will use the formula

Q = It where

Q is the total energy required to boil the water = 100KJ = 100,000Joules

I is the current = 11.5A

t is the time taken to boil the water

t = Q/I

t = 100,000/11.5

t = 8695.65seconds

t = 2.42hours

4 0
3 years ago
Is anyone interested in a pile of bricks, it's free on craigslist?
harkovskaia [24]
Yessss how many you have very interesting
4 0
3 years ago
During a test crash and airbag in place to stop at dummies forward motion the dummies mass is 75 kg if the net force of the dumm
strojnjashka [21]
The dummy's acceleration is 11 m/s^2
(also known as 11 meters per sec. per sec.)

a = F/m
   = 825 N/75 kg
   = 11 m/s^2


3 0
3 years ago
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