Answer:
3.95 x 10⁵ Pa
Explanation:
given,
depth of water tank = 10 m
bottom tank height = 20 m
density of water = 1000 Kg/m³
diameter of hose = 2 cm
Pressure at ground level = ?
net head of water from the ground
H = 20 + 10
H = 30 m
pressure exerted at the ground
P = ρ g h
P = 1000 x 9.8 x 30
P = 2.94 x 10⁵ Pa
atmospheric pressure = 1.01 x 10⁵ Pa
total pressure on the ground
= atmospheric pressure + pressure due to water tank
= 1.01 x 10⁵ Pa + 2.94 x 10⁵ Pa
= 3.95 x 10⁵ Pa
Answer:
Speed=<u>Distance</u><u> </u>
Time
=<u>60</u>
12
=5m/s
Vector quantity is defined by direction as well as magnitude both
so now lets discuss all option
1) distance = it is total path length between two points so there is no direction needed in it so it is scalar
2) Speed = it is ratio of total distance covered and total time, so it also do not require any direction.
<em>3)velocity = it is ratio of displacement and time, and displacement is always given with direction so velocity is a vector quantity</em>
4) time = time is the measurement of the interval of two events and we do not require any direction in it so its a scalar quantity.
5.00x times 10 ^-4
I’m so sorry if I am wrong
And hope it helped