Answer:
First of all the attack is gonna die because its 2020 who throws a rock up over a wall to kill someone(cavemen) and
it's gonna be ↓
explanation:
An attacker at the base of a castle wall 3.60 m high throws a rock straight up with speed 8.00 m/s from a height of 1.70 m above the ground.
(a) Will the rock reach the top of the wall?
(b) If so, what is its speed at the top? If not, what initial speed must it have to reach the top?
(c) Find the change in speed of a rock thrown straight down from the top of the wall at an initial speed of 8.00 m/s and moving between the same two points.
(d) Does the change in speed of the downward-moving rock agree with the magnitude of the speed change of the rock moving upward between the same elevations? Explain physically why it does or does not agree.
Explanation:
Sep 3, 2019 — The zero stands for "zero charge". The mass of a neutron is slightly greater than the mass of a proton, which is 1 atomic mass unit (amu) ...
Atoms of elements hook up to form molecules of compounds.
In this picture, you have 2 atoms of the element 'Hydrogen'
and one atom of the element 'Oxygen', hooked up to form
one molecule of the compound 'Water'.
Answer:
L = 2.61 10³ kg m² / s
Explanation:
Let's approximate the drone to a particle the angular momentum is
L = r x p
L = m r v sin θ
in this case v = 9.5 m / s the mass of the drone is m = 11 kg.
The distance can therefore be found using the Pythagorean theorem, but we can see that the relation
r_perpendicular = r sin θ
r_perpendicular = 25 m
as the flight is horizontal this height does not change
L = m v r_perpendicular
let's calculate
L = 11 9.5 25
L = 2.61 10³ kg m² / s