<span>For maximum visibility, backing a vehicle requires a driver to:
Adjust the mirrors so that the driver can see the intended trailer path.
</span>when driver is moving backward or backing a vehicle, adjusting of mirror is important factor because a driver can see backward from the mirror.
Always park back in a space.
<span>There are also other factors a driver should keep in mind:
Turn your head also while backing
back slowly and should ready to stop any moment
if someone is walking behind the vehicle, horn the vehicle etc
</span>
The present day humans first appeared in the fossil record's around 66 million years ago soon after the cretaceous paleogene extinction event that eliminated 3 - quarters of plant and animals species on earth including many dinosaurs.
I think 23 is b and 24 a?
Answer:
The mass of the cart is 150 kg.
Explanation:
Given that,
Mass of a boy, m₁ = 50 kg
Initial speed of boy, u₁ = 10 m/s
Initial speed of car, u₂ = 0 (at rest)
The speed of the cart with the boy on it is 2.50 m/s, V = 2.5 m/s
Let m₂ is the mass of the cart. Using the conservation of momentum as follows :
So, the mass of the cart is 150 kg.
The molecules of a solid vibrate faster so that they start spreading out to become a liquid. This energy makes them vibrate faster so the bonds between molecules can't interact all that well anymore creating more distance. The stronger the bonds between the molecules the higher the energy (temperature) has to be to get them away from each other. Hope I didn't confuse you too much!