The time of the bottle would take to land if it were to fall the same distance on the moon instead of Earth is 12.12 seconds.
To find the Time, the given values are,
A bottle lying on the windowsill fall = 4.95 seconds
The distance of the object to the ground = 120 meters
The distance d an object falls under the influence of gravity is determined by the equation
D = (1/2) (g) (t²)
where,
D - Distance
g - acceleration of gravity
t²- square of the falling time
In the equation,
Multiply each side by 2 : 2 D = gt²
Divide each side by ' g ' : 2 D/g = t²
Square root each side: t = √ (2D/g)
Gravity on the surface of the moon is roughly 1/6 the value
of gravity on the surface of the Earth.
So we expect ' t ' to increase by √6 = 2.45 times.
It would take the same bottle (2.45 x 4.95) = 12.12 seconds
to roll off the same window sill and fall 120 meters down to the surface of the Earth.
Thus, the time of the bottle would take to land if it were to fall the same distance on the moon instead of Earth is 12.12 seconds.
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Part (c) The rock is released from rest at point o Derive an expression for the speed v with which the rock crashes into a planet Part (d) Calculate the speed the rock crashes into the planet in m/s
The magnitude of the rock's acceleration half-way between two planets is 1.086 m/s².
The given parameters;
mass of planet, A = 3M
radius of the planet A, = R
mass of planet B, = 4M
radius of planet B, = 2R
distance between the two planets, r = 8R
The gravitational force half-way (4R) between the two planets is calculated from Newton's universal gravitational law as follows;
SEE IMAGE 1
The magnitude of the rock's acceleration is calculated from Newton's second law of motion as follows;
SEE IMG 2
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b. joule
c. newton
d. kilogram
Answer:
The correct answer is c
Explanation:
B. transform fault area
C. seafloor spreading zone
D. region of paleomagnetism
Answer:
Option (A)
Explanation:
Earth crust is comprised of numerous lithospheric plates. These plates constantly move over the viscous asthenosphere layer. This movement of plates is due to the convection current generated in the mantle due to the radiation of the heat from the earth's core.
This plate motion takes place in three different ways, namely
1) Convergent plate motion
2) Divergent plate motion
3) Transform plate motion
In a convergent plate motion, two plate collides with one another. Due to this collision, the denser plate gets subducted below the less denser plate forming a subduction zone. This region is also known as the Benioff zone.
Hence, the correct answer is option (A).