Answer:
Water changing color when food coloring is added.
A gas forming when vinegar and baking soda are mixed.
Explanation:
Because you can see chemical change as a change which cannot be reverted or a chemical reaction. Since a chemical change is the process where one or more substances are altered into a new one.
Actually Welcome to the Concept of the Projectile Motion.
Since, here given that, vertical velocity= 50m/s
we know that u*sin(theta) = vertical velocity
so the time taken to reach the maximum height or the time of Ascent is equal to
T = Usin(theta) ÷ g, here g = 9.8 m/s^2
so we get as,
T = 50/9.8
T = 5.10 seconds
thus the time taken to reach max height is 5.10 seconds.
Answer:
160J OR 140J
Explanation:
Depends on teacher which formula your teacher uses.
<u><em>U=Q+W OR U=Q-W</em></u>
Method 1:
U=150+10J=160
U=150-10=140J
Answer:
Sundial is an instrument showing the time by the shadow of a pointer cast by the sun on to a plate marked with the hours of the day.