Answer:
Mechanical advantage of the wheel and axle is 32.5
Explanation:
Given that,
The radius of the axle,
The radius of wheel ,
We need to find the mechanical advantage of the wheel and axle. It can be calculated as :
MA = 32.5
So, the mechanical advantage of the wheel and axle shown below is 32.5 . Hence, this is the required solution.
Answer:
Initial velocity = 10 m/s
θ = 60°
This is the case of projectile motion
So the horizontal component of velocity 10 m/s = 10 cosθ
u = 10 cosθ
u = 10 cos 60°
u=5 m/s
x= 5 m
So in the horizontal direction
x = u .t
5 = 5 .t
t = 1 sec The vertical component of velocity 10 m/s = 10 sinθ
Vo= 10 sinθ
Vo= 10 sin 60°
Vo = 8.66 m/s
h=3.75 m
So height of robot = 3.75 - 0.75 m
height of robot =3 m
Answer:
The ballon would be inflated. The reason is that the sodium bicarbonate in baking soda reacts with acetic acid in vinegar to produce gas.
Explanation:
The main component of baking soda is sodium bicarbonate, .
Vinegar is mostly a solution of acetic acid in water.
Acids such as acetic acid react with carbonate salts. One of the products of such reactions is carbon dioxide , a gas.
In this question, when the acetic acid in vinegar reacts with sodium bicarbonate in the baking soda, the following reaction would occur:
.
The produced would then inflate the ballon placed on the opening of the bottle.