If you dropped a ball from any height, and measured its distance from the ground at any regular interval while it's falling, the graph of that distance versus time would be a graph that curves downward.
-- The ball is falling down. As time goes on, it gets closer and closer to the ground. Its remaining distance from the ground keeps decreasing, so the line on the graph slopes down.
-- The speed of the ball keeps increasing (it accelerates) because of the gravitational force on it. As time goes on, it covers more of the remaining distance during each interval than it did in the previous interval. The downward slope of the graph keeps increasing.
Explanation:
The initial kinetic energy is
The final kinetic energy is
The work done W on the car is
The power expended P is
8m is the answer :D your welcome
Answer:
force acting on small piston is 200 N
Explanation:
given data
cross-sectional area a = 2.0 cm² = 2 × m²
cross-sectional area a = 100 cm²= 100 × =m²
force f = 10,000 N
to find out
force acting on small piston
solution
we know that here pressure will be equal at all level in horizontal
so pressure at p1 = pressure p2
and pressure =
so =
put here value we get
=
solve it we get
force 1 = 200 N
so force acting on small piston is 200 N
Answer:
The coefficient of linear expansion of the glass is 2.08 x 10⁻⁴K
⁻¹
Explanation:
see the attached file