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lys-0071 [83]
3 years ago
13

Trains A and B travel on parallel tracks. Train A has a speed of 40km/h and is slowing at the rate of 2m/s2, while train B has a

constant speed of 40km/h. Determine the velocity and acceleration of train B relative to train A .
Physics
1 answer:
RSB [31]3 years ago
6 0
I don’t know what the answer is but I will take points LOL thank God
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How to TPWK according to you
Karo-lina-s [1.5K]

Answer:

TPWK is an acronym which stands for treat people with kindness. It encourages people to respect and love others in all situations.

Explanation:

Treat people with kindness (TPWK) is one of the major attitudes that must be imbibed by everyone. This would give room for more love and genuine kindness for others which would make the world a better place to live. Because people will live with the consciousness that others come first.

There are variuos ways and manner to treat people with kindness which can be simplified as having genuine love for others. When people are kind to one another, then life would be worth living.

6 0
3 years ago
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Name of compounds<br>a. A1C1<br> 3​
Orlov [11]

Explanation:

Aluminum Chloride

Hope it helps u

8 0
3 years ago
Niobium metal becomes a superconductor when cooled below 9K. Itssuperconductivity is destroyed when the surface magnetic fieldex
elena-14-01-66 [18.8K]

Answer:

the maximum current is 500 A

Explanation:

Given the data in the question;

the B field magnitude on the surface of the wire is;

B = μ₀i / 2πr

we are to determine the maximum current so we rearrange to find i

B2πr = μ₀i

i = B2πr / μ₀

given that;

diameter d = 2 mm = 0.002 m

radius = 0.002 / 2 = 0.001 m

B = 0.100 T

we know that permeability; μ₀ = 4π × 10⁻⁷ Tm/A

so we substitute

i = (0.100)(2π×0.001 ) / 4π × 10⁻⁷

i = 500 A

Therefore, the maximum current is 500 A

4 0
3 years ago
How much KCI can be dissolved in 100 g of water at 30°C?​
asambeis [7]

Answer:

34

Explanation:

The problem provides you with thesolubility of potassium chloride, KCl , in water at 20∘C , which is said to be equal to 34 g / 100 g H2O . This means that at 20∘C , a saturated solution of potassium chloride will contain 34 g of dissolved salt for every100 g of water.

6 0
3 years ago
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In a longitudinal wave, the particles of matter in the medium vibrate by pushing together and moving apart. In a transverse wave
Lilit [14]

Answer:

C. The particles in longitudinal waves travel parallel to the direction of the wave, whereas the particles in transverse waves travel perpendicular to the direction of the wave.

Explanation:

Longitudinal waves are waves that propagates energy from their source by movement of particles in a direction parallel to the wave motion.

Transverse waves produce oscillations that are perpendicular to the direction of propagation.

  • Examples of longitudinal waves are sound waves, seismic p-waves
  • Examples of transverse waves are electromagnetic waves

A wave is a disturbance that transmits energy from one point to another.

8 0
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