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spayn [35]
3 years ago
8

How much ancient plant debris is necesary to form one foot of coal A.one foot of plant debris B.ten feet of plant debris c.50 fe

et of plant debris d.one hundred feet of plant debris.
Physics
2 answers:
Roman55 [17]3 years ago
6 0
The correct answer is B 
kirill115 [55]3 years ago
5 0
I think it is b i hope it helps
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When driving downhill, your vehicle will accelerate and start moving fast, due to _______________.
Stolb23 [73]
B: Gravity.
The force of gravity will pull the car down the hill. The weight/mass of the car also helps this.
3 0
4 years ago
Read 2 more answers
a body starts from rest and moving under uniform acceleration of 4 metre per second square travel half of its total path during
lakkis [162]

Answer:

t = 3.414 s

s = 23.3 m

Explanation:

Let t be the total time of motion

Let s be the total distance of motion

s - s/2 = ½at² - ½a(t - 1²) = ½a(t² - (t - 1)²)

s/2 = ½a(t² - (t² - 2t + 1)) = ½a(t² - t² + 2t - 1)

s = a(2t - 1)

s = 4(2t - 1)

s = 8t - 4

8t - 4 = ½4t²

8t - 4 = 2t²

0 = 2t² - 8t + 4

0 = t² - 4t + 2

t = (4 ±√(4² - 4(1)(2))) / 2 = (4 ± √8)/2 = 2 ± √2

t = 3.414 s

or

t = 0.5857... s which we ignore because it does not have a full last second.

s = ½(4)3.414² = 23.3137... 23.3 m

5 0
3 years ago
A tetrahedron has an equilateral triangle base with 25.0-cm-long edges and three equilateral triangle sides. The base is paralle
KATRIN_1 [288]

Answer:

electric flux through the three side = 2.35 N m²/C

Explanation:

given,

equilateral triangle of base = 25 cm

electric field strength = 260 N/C

Area of triangle = \dfrac{\sqrt{3}}{4}a^2

                          =  \dfrac{\sqrt{3}}{4} 0.25^2

                          = 0.0271 m³

electric flux = E. A

                   = 260 × 0.0271

                   = 7.046 N m²/C

since, tetrahedron does not enclose any charge so, net flux through tetrahedron is zero.

electric flux through the three side = (electric flux through base)/3

                               = \dfrac{7.046}{3}

electric flux through the three side = 2.35 N m²/C

4 0
3 years ago
Two charged particles held close together are released. As they move, the force on each particle increases. Therefore, the parti
AnnyKZ [126]
The answer would be B
4 0
3 years ago
Are molecular compounds and covalent molecules the same thing ?
likoan [24]
Yes, they are synonymous terms.
5 0
3 years ago
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