Answer:
When a substance is heated, it gains thermal energy. Therefore, its particles move faster and its temperature rises. When a substance is cooled, it loses thermal energy, which causes its particles to move more slowly and its temperature to drop.
Explanation:
Brainliest???
Answer:
He can use the hot plate to heat the substances and use the thermometer to measure the temp and use the stopwatch to make sure they are heated for the same amount of time.
Explanation:
When an object is put into water (or any other liquid) there are forces placed on it. These forces create depth in the liquid and its density will affect the upthrust on an object The same situation will occur no matter how deep the object is placed (as long as it is completely submerged).
If the amplitude of the wave increases by 4 times, the intensity will increase by 16 times. Option B is correct.
<h3 /><h3>What is the relation between the
intensity and the
Amplitude?</h3>
The intensity is directly proportional to the square of the amplitude of the wave.
Where,
- Intensity
- Amplitude
- constant
Thus, if the amplitude of the wave increased by 4 times,
Therefore, if the amplitude of the wave increases by 4 times, the intensity will increase by 16 times.
Learn more about amplitude
brainly.com/question/3539752
Answer:
Zero
Explanation:
The magnetic field due to the first wire on the second wire with current i₁ in the first wire at a distance d from the second wire is B₁ = μ₀i₁/2πd.
The magnetic force due to this field on the second wire of length segment, L and current i₂ is F₁ = Bi₂L = (μ₀i₁/2πd)i₂L = μ₀i₁i₂L/2πd = F
The magnetic field due to the second wire on the first wire with current i₂ in the first wire at a distance d from the second wire is B₂ = μ₀i₂/2πd.
The magnetic force due to this field on the first wire of length segment, L and current i₁ is F₂ = Bi₁L = (μ₀i₂/2πd)i₁L = μ₀i₁i₂L/2πd = F
Since their magnetic fields are in opposite directions, according to the right hand rule, their forces would also be in opposite directions.
So F₁ = F and F₂ = -F
So their vector sum F₁ + F₂ = F +(-F) = F - F = 0
