Answer:
Explanation:
Given
wall is 10 m from student
8 m high
Therefore student should launch at an angle \theta such that its maximum height is 8 m and its range is 20 m
For maximum height(h)
Range (R)
divide 1 & 2
Answer:
\Delta E=1.22\times 10^{-22}J
Explanation:
The energy of electron in any state is given by here h is planck's constant n is state of electron L is the infinte potential well m is the mass of electron
We know that
Potential well dimension =
Mass of electron
So energy required to electron to jump from ground state to 3rd state
Vector: I hope this helps!
Answer: 48 m
Explanation:
Since we are dealing with constant acceleration, we can use the following equations:
(1)
(2)
Where:
is the cart’s final velocity
is the cart’s initial velocity
is the cart's acceleration
is the time
is the cart's displacement
So, firstly we have to find from (1):
(3)
(4)
Isolating from (2) and substituting (4):
(5)
(6)
Finally:
Answer:
the average kinetic energy of water particles - C.