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Hoochie [10]
2 years ago
9

A magnetic field protects earth from the sun’s high-energy particles. What two processes are involved in the formation of earth’

s magnetic field?.
Physics
1 answer:
Tomtit [17]2 years ago
8 0

Answer:

The movement of electricity-conducting iron from the convection currents and the spinning of the earth induces a current which induces a magnetic field.

Explanation:

ur welcome

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the specific heat of water is 4.2 j/c. if it takes 31,500 joules to heat to warm 750 g of water, what was the temperature change
defon
The amount of heat needed to increase the temperature of a substance by \Delta T is given by
Q=mC_s \Delta T
where
m is the mass of the substance
C_s the specific heat capacity
\Delta T the increase in temperature

In our problem, the mass of the water is m=750 g, the specific heat is C_s = 4.2 J/g ^{\circ}C and the amount of heat supplied is Q=31500 J, so if we re-arrange the previous formula we find the increase in temperature of the water:
\Delta T= \frac{Q}{m C_s}= \frac{31500 J}{(750 g)(4.20 J/g^{\circ} C)}=10^{\circ}C
7 0
3 years ago
11. A plow pushes 100 kg of snow with 300 N of force. How much is the pile of snow<br> accelerated?
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Answer:

Explanation:

This is an application of Newton's second Law.

Formula

F = m * a

F = 300 N

m = 100 kg

a = ?

F = m * a

300N = 100 kg * a            Divide by 100

300N/100kg = a

a = 3 m/sec^2

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Answer:

A

Explanation:

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Explanation:

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