It should not be stored in a place where it is open to the air, as it can obtain diseases, bacteria and viruses just hanging out waiting for a host.
Answer:
Explanation:
The cannonball goes a horizontal distance of 275 m . It travels a vertical distance of 100 m
Time taken to cover vertical distance = t ,
Initial velocity u = 0
distance s = 100 m
acceleration a = 9.8 m /s²
s = ut + 1/2 g t²
100 = .5 x 9.8 x t²
t = 4.51 s
During this time it travels horizontally also uniformly so
horizontal velocity Vx = horizontal displacement / time
= 275 / 4.51 = 60.97 m /s
Vertical velocity Vy
Vy = u + gt
= 0 + 9.8 x 4.51
= 44.2 m /s
Resultant velocity
V = √ ( 44.2² + 60.97² )
= √ ( 1953.64 + 3717.34 )
= 75.3 m /s
Angle with horizontal Ф
TanФ = Vy / Vx
= 44.2 / 60.97
= .725
Ф = 36⁰ .
The statement “All of the earth's life and weather exists
within the stratosphere” is false. The answer is letter B. The answer is the
troposphere. The first layer, troposphere, is where we are able to do most of
our activities. This is where we can see the formation of clouds, the
production of rain, hail, snow and other weather phenomenon. Also, this layer
is where the greatest amount of air pressure because most of the molecules of
air are in this area. Like us, air has also mass and the pressure is brought
down by the earth’s gravity causing an increase in weight exerted on you as you
descend lower into the atmosphere. So, as you enter into the other layers of
atmosphere above the troposphere, the air pressure starts to decrease. <span>Below the
atmosphere is the hydrosphere. This is where all liquid forms are located. And
since the seawater has a greater mass than air, it has the greatest
pressure. </span>
Answer:
45.06053 m/s
Explanation:
t = Time taken
u = Initial velocity
v = Final velocity
s = Displacement
g = Acceleration due to gravity = 9.81 m/s²
a = Acceleration
Time taken by the ball in the horizontal plane
Time = Distance / Speed
The Speed of the ball was 45.06053 m/s
