Answer:
C) 7,500 m/s
Explanation:
The satellite's acceleration due to gravity equals its centripetal acceleration.
v² / r = GM / r²
Solving for velocity:
v² = GM / r
v = √(GM / r)
Given:
G = 6.67×10⁻¹¹ m³/kg/s²
M = 5.98×10²⁴ kg
r = 6.357×10⁶ m + 6.8×10⁵ m = 7.037×10⁶ m
Substituting the values:
v = √(6.67×10⁻¹¹ × 5.98×10²⁴ / 7.037×10⁶)
v = √(5.67×10⁷)
v = 7500 m/s
Answer: find the answer in the explanation
Explanation:
When a magnet is placed at the centre of the paper, and the nails are sprinkled on the paper, what will happen to the nails is that, the nails will form a pattern on the paper according to the magnetic field of the bar magnetic pole.
Other phenomena you can observe are:
1.) The nails will align themselves and show some lines of forces which is equivalent to the magnetic field lines
2.) The direction of the line of forces
3.) The strength of the magnetic field pole.
Answer: Three
A plane requires minimum three points for its determination. These three points should be non-collinear or the third point should not lie in same line as made with any two points. By joining two points, a line is formed. A point is one dimensional.
By joining minimum three non-co-linear points, a plane can be formed.
Given three non-collinearpoints in space, they uniquely define a plane. The correct option is C.
Three-dimensional space requires at least three non-collinear points in order to establish a plane. Any additional points would also lie on the plane formed by these three points.
This is due to the fact that a plane is a two-dimensional surface that can go on forever. We define a plane that traverses all three points by joining three non-collinear points.
Their positions when combined result in a flat, continuous surface. More points would simply serve to confirm the plane's definition rather than alter it. Because of this, three points are sufficient to build a plane in three dimensions.
Thus, the correct option is C.
For more details regarding non-collinearpoints, visit:
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Your question seems incomplete, the probable complete question is:
How many points does it take to determine a plane?
A. one
B. two
C. three
D. four
Answer:
Emphasizes
Explanation:
The expression of an art is intelligible to those that understand it, as such to make an impression an artist has to emphasize the point they want to communicate
An art is an expression of the personal experiences of the artist or a reaction to events or to reveal the realities as seen by the artist such as global warming and the environment, so as to get the attention of people with the goal to change them, such that a good art changes the most people, hence the need for emphasis.
Answer:
A - emphasizes
Period is defined as the time required to complete one cycle which is also related to frequency. Period is presented by an equation P = 1/f where p is the period, and f is the frequency. The unit is in second. Frequency is defined as the number of circular revolutions in a given time interval and it is in Hertz (Hz) = 1s^-1. Velocity s defined as the arc traveled at a given time with the equation v=l/t where v is the velocity, l is the length and t is time. The unit is in m/s.
The forest ecosystem will regain back its natural ecology compared to burning of the forest and other illegal activities done to the forest. And also, some of the animals living in that forest will live and those that are endangered will not be threatened.
B.Direction
C.Speed
D.Velocity