Answer:
3.0 seconds
Explanation:
The time of flight of a projectile (the time it takes to reach the ground) does not depend on the horizontal motion, but only on its vertical motion.
In fact, the time of flight is determined by the suvat equation:
where
s is the vertical displacement
u is the initial vertical velocity (0, in case of these two projectiles)
g = 9.8 m/s^2 is the acceleration of gravity (assuming downward as positive direction)
t is the time of flight
Re-arranging the equation, we get
We see that this time depends only on s (the heigth of the cliff) and g: therefore, since the two projectiles are launched from the same height, they take the same time to reach the ground, 3.0 seconds.
You look up the element in the periodic table. Subtract the atomic number (small number) from the mass number (big number). The answer is the number of neutrons.
Answer:
Explanation:
By definition we get that,
velocity = displacement change/ time taken
So for bird we can use,
velocity of the bird = displacement change/ time taken
= 8000/4 = 2000 miles per day =326.61 m/s
Answer:
You want to fall in love with someone or get a boyfriend. Its a natural urge for everyone to feel so but comes the question how and why.
Explanation:
- I guess your age is below 20. This is the time you make career choices and important life decisions and choosing an emotional partner whom you give your total emotional control is one of them.
- You want to be strong enough, self-sufficient and complete before you take the step. Because many teenagers do not filter their partner and go deep for total physical features. Assuming you are complete and can afford relationship then you can take the step.
- Choose the person who sees the quality in you rather than physical features then you can definitely get a potential boyfriend. Be curious and know about him, befriend him and then take gradual steps .
