We must rewrite the Newton's <span>Second</span> Law:
Applying in the question:
The appropriate answer is 4. The formation of Mid-Ocean ridges. There are two types of divergent margins: continental separation and oceanic floor spreading. Where the sea floor separates magma upwells and new oceanic crust is formed. Mid ocean ridges are home to hydrothermal vents. These support a unique ecosystem of marine organisms. The Mid- Atlantic Ridge where the African and Eurasian plates separate from the North and South American plates.
Answer:
Explanation:
Force of attraction between two charges is 36N
Then from coulombs electrostatic law.
The force of attraction or repulsion between two charges (q1 and q2) is directly proportional to the product of the force and inversely proportional to the square of the distance apart.
F = kq1•q2 / r².
kq1•q2 / r² = 36
Now, we are told that the second charges has increased by a factor of 3
Then,
q2' = 3q2
So, since the first charge is contact, the radius is constant and k is constant,
Then,
F is directly proportional to the second charge, so if the second charge is triple then the force is tripled
Then,
F' = 3F = 3 × 36 = 108 units
Unit of force is newton
F' = 108N
Also,
F' = kq1•q2' / r²
F' = kq1•3q2 / r².
F' = 3 × kq1•q2 / r²
Since, kq1•q2 / r² = 36
Then,
F' = 3 × 36
F' = 108 units
F' = 108N
Answer:
The answer is A, the Law of Conservation of Matter.
Explanation:
Answer:
a) 3.35 s
b) 43.4 m/s
c) 32.85 m/s
d) 54.35 m/s
Explanation:
a) If we ignore air resistance, then gravitational acceleration g = 9.81 m/s2 is the only thing that generate vertical motion of the rock. We can use the following equation of motion to find out the time it travels 55m vertically with acceleration g = 9.81m/s2 and initial vertical speed = 0 m/s
b) Since there's no air resistance, the rock horizontal velocity stays constant. For it to travel 145m horizontally within 3.35 s, its horizontal velocity must be
c) The vertical component of the rock velocity just before it hits the ground is the product of acceleration g and the time t
d) The magnitude of the rock velocity of the rock before it hits the ground consists of both horizontal and vertical velocity