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baherus [9]
3 years ago
11

Why is it good that adolescents prune their brains

Physics
1 answer:
Aneli [31]3 years ago
5 0

Answer:

Synaptic pruning is an essential part of brain development. By getting rid of the synapses that are no longer used, the brain becomes more efficient as you age.

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Deb is planning to paint a wall of her house that has two regular hexagonal windows. Painting the wall costs $1.75 per square fo
azamat

Answer:

It will cost Deb $4,025

Explanation:

The average square feet of a room in United States is 2,300square feet.

I square foot cost $1.75

Therefore 2,300square feet will cost:

2,300 square feet × $1.75 = $4,025

6 0
3 years ago
If an object has a mass of 1 kg, what is its weight on earth
seropon [69]

9.81 newtons ......................... sorry it says twenty words

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If a roller coaster has 50,000 J of potential energy at the top of the first hill, how much kinetic energy does it have at the l
Fed [463]

Answer:

50,000 J because of the transformation of energy

Explanation:

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3 years ago
Predict Two objects have unlike charges. How
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Answer:b

Explanation:

6 0
3 years ago
The equation for free fall at the surface of a celestial body in outer space​ (s in​ meters, t in​ seconds) is sequals10.04tsqua
Sindrei [870]

Answer:

1.42 s

Explanation:

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s=\frac{1}{2}at^2

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s is the vertical distance covered

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t is the time

On this celestial body, the equation is

s=10.04 t^2

this means that

\frac{1}{2}g = 10.04

so the acceleration of gravity on the body is

g=2\cdot 10.04 = 20.08 m/s^2

The velocity of an object in free fall starting from rest is given by

v=gt

In this case,

g = 20.08 m/s^2

So the time taken to reach a velocity of

v = 28.6 m/s

is

t=\frac{v}{g}=\frac{28.6 m/s}{20.08 m/s^2}=1.42 s

3 0
3 years ago
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