Most geologists accept radiometric dating techniques as valid because radioactive elements decay at a constant and measurable rate.
Answer: Option C
<u>Explanation:</u>
Scientists prefer radioactive dating to carbon dating because it is more accurate in measuring. The analysis depends upon the radioactive decay of radioactive isotopes of any matter in a given rock or soil.
The parent atoms and daughter atoms are compared while studying, and hence age can be calculated easily. Radioactive decay depends upon the given half-life of the atom, which is a constant and is known. So, it would be very easy to calculate the number of progeny atoms and parent atoms and find out their age.
Answer:
<u>According </u><u>to</u><u> the</u><u> </u><u>Given</u><u> Statement</u><u> </u>
Canon fires directly upwarda at 150m/s ( Initial speed, u )
Acceleration due to gravity is 10m/s²
Since Cannon ball reach it maximum height so its final velocity v will be 0 m/s .
Using Kinematic Equation
On substituting the value we get
➥ 0 = 150 + 10 × t
➥ 150 = 10 × t
➥ 150/10 = t
➥ 15 s = t
So, it will take 15 seconds .
Option A. A force does work on an object if a component of the force is is parallel to the displacement of the object.
<h3>Work done by force</h3>
The force applied to an object to displace it from a given point to another point is known as work done on the object.
W = Fd cosθ
where;
- f is the magnitude of applied force
- d is the displacement of the object.
- θ is the angle between the applied force and displacement.
Thus, A force does work on an object if a component of the force is is parallel to the displacement of the object.
Learn more about work done here:brainly.com/question/8119756
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The total distance is 60*2-15=105 kilometers, and the total displacement is 15 kilometers east.
"forces between molecules"