Answer:
v = 73.75 m/s
Explanation:
It is given that,
A rocket rises vertically, from rest, with an acceleration of 3.2 m/s² until it runs out of fuel at an altitude of 850 m.
Let us assume we need to find the velocity of the rocket when it runs out of fuel.
Let v is the final speed. Using the third equation of kinematics as :
u = 0
So, the velocity of the rocket when it runs out of the fuel is 73.75 m/s
Answer:
7 MW
Explanation:
mass of helicopter, m = 12 Mg = 12000
volume of water in bucket, V = 5 m³
diameter of blade, D = 14 m
density of water, d = 1000 kg/m³
density of air, d' = 1.23 kg/m³
The weight of water and the helicopter is balanced by the thrust produced by the rotor blade of the helicopter.
So, force
F = m x g + V x d x g
F = 12000 x 9.8 + 5 x 1000 x 9.8
F = 166600 N
Let initially the velocity of blade is v
v = 41.96 m/
Power of the helicopter, P = Force x velocity
P = 166600 x 41.96
P = 7 x 10^6 Watt
P = 7 MW
Two dangerous elements can form a compound that is edible known as "NaCl salt".
<u>Explanation:</u>
Sodium and chlorine are two very dangerous elements. As the reaction between sodium and water is extremely violent and chlorine is a very toxic gas. But combination of these elements result into a harmless product with unique properties like it is edible and dissolves without exploding in water.
In sodium chloride reaction the atoms of sodium interact with chlorine atoms. Sodium will donate an electron (by becoming positively charged) to acceptor chlorine (which become negatively charged) as given in following reaction
As sodium and chlorine are very keen to achieve noble gas configuration by completing an octet on donating and accepting an electron respectively.
Answer:
a) 30 degree
Explanation:
As we know that time of flight of the projectile depends on the the vertical component of the velocity always
It is given as
now we know that
so we will have
since we know that two projectiles are projected at same speed but different angles
so smaller the angle will take smaller time
so it would be 30 degree projectile which will take smaller time
Answer: The Flash, Allen's top speed is Mach 3.3, or 2,532 miles per hour.
Explanation: