Answer:
-39.2m/s
Explanation:
Given that :
t = 4secs
g = -9.8m/s^2
v = ?
u = 0m/s ( since it was at rest )
V = u +at............. 1
Where v is the final velocity
a = -g = -9.8m/s^2 since the ball was dropped from a height which will eventually make it move against gravity
t = 4secs
Substitute the values into 1
v = 0 - 9.8×4
v = -39.2m/s
The equation is Fg = G(m₁m₂/d²).
G is the universal gravitational constant, but that isn't exactly a quantity.
m₁ and m₂ are the masses of the two objects, and those are quantities.
d is the distance between the two objects, and those are quantities.
So, masses and distance.
In the push-up, the athlete's weight (or force) of 250 N moves through a distance of 20 cm.
By definition,
Work = force * distance.
Therefore, work done in one push-up is
Note that 1 J = 1 N-m.
Answer: 1 J
Answer: Electric field is given as
E = V/d
E = 220 v / 0.0056m
E = 39285.71 v/m
Or
E = 39285.71 N/C
Explanation: Therefore electric field is 39285.71 V/m
Answer:
Explanation:
The processes involved in each of the molecules involved are different.
For example, water molecules that have condensed in the atmosphere (in the cloud) return back to the earth through precipitation in the form of rain water. These cows drink these water from various water bodies around them. This is one process in which water molecules move from the atmosphere into the living cow.
In the case of carbon and nitrogen atoms; the air the cow breath in consists of nitrogen, oxygen, carbon dioxide and some other gases. These gas molecules move (from the atmosphere) into the cow through the process of respiration.
