-- water shooting out of a hose
-- writing an email
-- making hard-boiled eggs
-- driving to the dentist
-- the emission spectrum of a carbon arc
-- buying a new car
-- putting your shoes on
-- singing a song
-- cutting a tree down
-- learning to dance
-- cleaning the windows
-- building a radio
-- ironing your shirt
-- riding a bicycle
-- playing the piano
The gases such as the air or helium inside the balloon take the shape of the containers they're in. They spread out so that the space is filled up evenly with the gas molecules
The answer here is <span>The government is expansive</span>
"physical science" is a branch of science that is based on practical tests and explanations of the different phenomena. It is based on scientific evidence and tests/experiments.
Some of the branches that are based on physical science are:
1- Astronomy
2- Electronics
3- Engineering
4- Radiology
Answer:
44.3 m/s
Explanation:
Given that a ball is thrown horizontally from the top of a building 100m high. The ball strikes the ground at a point 120 m horizontally away from and below the point of release.
What is the magnitude of its velocity just before it strikes the ground ?
The parameters given are:
Height H = 100m
Since the ball is thrown from a top of a building, initial velocity U = 0
Let g = 9.8m/s^2
Using third equation of motion
V^2 = U^2 + 2gH
Substitute all the parameters into the formula
V^2 = 2 × 9.8 × 100
V^2 = 200 × 9.8
V^2 = 1960
V = 44.27 m/s
Therefore, the magnitude of its velocity just before it strikes the ground is 44.3 m/s approximately
