Sugar can have a powerful effect on children's behavior, and this is often in direct proportion to the amount of sugary foods they consume. ... When sugary foods are consumed regularly, it can affect attention span and learning ability, and can aggravate hyperactivity in children with ADHD.
Answer:
do you mean before we used fossil fuels? steam.before steam? fire was used for like ...125,000 years ago. we were not smart back then but we were smart enough.
Explanation:
Answer:6.36 ft
Explanation:
Given
there is 110 ft of deer-resistant
area enclosed must be at least 700 ft^2
Let the length be L
and area of rectangular garden is 110\times L
thus
L=6.36
Therefore Length of garden must be at least 6.36 ft
Answer:
v = 7.9 m/s
Explanation:
length of the vine (L) = 20 m
initial angle with the vertical = 45 degrees
final angle with the vertical = 30 degrees
acceleration due to gravity (g) = 9.8 m/s^{2}
speed (v) =?
to solve this problem we can apply the equation below:
loss in potential energy = gain in kinetic energy
m x g x h = 1/2 x m x
v =
before we can apply the above we need to get our height
height = initial vertical height - final vertical height
height = (L - L cosθ2) - (L - L cosθ1)
height = (20 - 20cos45) - (20 - 20cos30) = 3.2 m
v =
v = 7.9 m/s
From Newton's third law of motion, the force that is exerted to the boy must be the same force exerted to the girl only that the direction is opposite. The net force in this item is,
F = m x a
Girl:
F = (37 kg)(2.3 m/s²)
F = 85.1 N
In the boy's case,
F = m x a
a = F/m
Boy:
a = 85.1 N/63 kg
a = 1.35 m/s²
Answer: 1.35 m/s²