Answer:
94.28 cm
Explanation:
The formula for elastic potential energy is given as;
PEel = 1/2 *k*x² where x is the displacement, k is the spring constant
Given
PEel = 110 J, k= 350 N/m then find x
PEel = 1/2 *k*x²
110 = 1/2 * 350 * x²
110 = 175 x²
110/175 = x²
0.6286=x²
√0.6286 =x
0.7928 m = x
79.28 cm = x
New length of spring = 15 cm + 79.28 cm = 94.28 cm
Answer:
Sodium Bromide + Dichlorine = Sodium Chloride + Dibromine
Reaction Type
Single Displacement (Substitution)
Explanation:
<span>True</span>
Frequency, f = 1/Period,T or Period, T = 1/Frequency, f
Answer:
Sun is actually closest to the Earth during the winter months of North America.
During the summer months the sun rays hit directly to the surface.
During the summer months the days are longer.
Explanation:
1. The sun is actually closest to the Earth during the winter months of North America because of the Earth's elliptical orbit. The sun is farthest from the Earth during the summer months of North America.
2. During the summer months the sun rays hit directly to the surface i.e., they sun rays are less spread out causing the Earth to heat up more. During the winter months the sun rays hitting the Earth are more spread out causing the Earth to heat up less as compared to the summer months.
3. During the summer months the days are longer, this means that North America receives more sunlight heating the Earth's surface which means that the surface cannot cool down as the nights are shorter.
Answer:
wave front
Explanation:
wave front is an imaginary line of a wave that joins all adjacent points that are in phase,
so that's the definition, and you apply it to the question
it obviously can't be the rest
hope you get it
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