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BartSMP [9]
3 years ago
10

How is a magnetic field generated?

Physics
2 answers:
kiruha [24]3 years ago
4 0
A magnetic field is produced by moving electric charges so B
charle [14.2K]3 years ago
3 0
Gravity is the answer I assume
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The energy transferred between objects that are at different temperatures
sukhopar [10]

Answer:

We learned in the previous section that temperature is proportional to the average kinetic energy of atoms and molecules in a substance, and that the average internal kinetic energy of a substance is higher when the substance’s temperature is higher.

If two objects at different temperatures are brought in contact with each other, energy is transferred from the hotter object (that is, the object with the greater temperature) to the colder (lower temperature) object, until both objects are at the same temperature. There is no net heat transfer once the temperatures are equal because the amount of heat transferred from one object to the other is the same as the amount of heat returned. One of the major effects of heat transfer is temperature change: Heating increases the temperature while cooling decreases it. Experiments show that the heat transferred to or from a substance depends on three factors—the change in the substance’s temperature, the mass of the substance, and certain physical properties related to the phase of the substance.

The equation for heat transfer Q is

Q = mcΔT,

Explanation:

pls brainliest

7 0
2 years ago
A driver traveled 270 km in 3 hours. The driver’s destination was still 150 km away. What was the driver’s average speed at this
evablogger [386]
The driver was going 90 kilometers every hour.
6 0
3 years ago
The difference between a molecule and a compound is that a compound is made up of atoms from . A chemical change creates a new .
ra1l [238]

Explanation:

A molecule can be made up from same or different elements. Whereas a compound will have different atoms.

Therefore, the difference between a molecule and a compound is that a compound is made up of atoms from different elements.

For example, O_{2} is a molecule and NaCl is a compound.

And a chemical change creates a new substance.

4 0
3 years ago
Read 2 more answers
1. A 25.35-g piece of iron absorbs 1562.75 Joules of heat energy, and its temperature
Lera25 [3.4K]

Answer:

Q = C M T        where C is the specific, M the mass, T the temperature change

Note 1 cal = 4.19 Joules

1562.75 J / (4.19 J/cal) = 378 cal

C = Q / (M * T) = 378 cal / (25.35 g * 155 deg C)

C = .096 cal / g deg C

8 0
1 year ago
Why are springs made of steel and not of copper.​
torisob [31]

Answer:

Springs are made of a variety of materials including copper and various forms of steel. The most common is high carbon steel as it is cheap, easy to work and a couple of other important properties.

Copper springs exist as well, but copper is more expensive than steel. However, in an environment where corrosion resistance is important, copper springs are a good alternative.

Explanation:

8 0
3 years ago
Read 2 more answers
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