Answer:
The Internet (social media to be precise)
Explanation:
False science are purported scientific conclusions drawn without any scientific data or procedures followed to arrive at such conclusions. These purported conclusions would have been irrelevant or not widespread without the internet or social media but the easy accessibility to social media globally has made "everyone" to be a scientist or even a publisher without scientific steps.
Some innocent individuals also help share (on the internet) these false science because of the inability to differentiate between the real scientific process and the ones done without any/some due scientific processes hence assisting in promoting these false science unknowingly. If there were no internet, these false sciences would not be this widespread as information will not travel this fast.
Answer:
(A) Strain = 0.0012
(b) Stress
(c) Young's modulus
Explanation:
Mass of the rock m = 75 kg
So weight of the rock
Length of the rope l = 18 m
Diameter of the rope d = 11 mm
Change in length of rope
So radius r = 5.5 mm = 0.0055 m
Cross sectional area
(a) Strain is equal to ratio change in length to original length
So strain
(b) Stress
(c) Young's modulus is equal to ratio of stress and strain
So young's modulus
1. it changes its velocity though out its circular motion because of its constant change in direction and also in its last 20 second due to a decrease in speed
2. 800kmhr^-1
v = s / t
= 2000/2.5
=800kmhr^-1
3. 1000kmhr^-1
v= s/t
= 2000/2
=1000kmhr^-1
Answer:
The velocity of a trip from City A to City B using the car is 50 miles per hour.
Explanation:
Given
200 mile trip by car takes 4 hours.
Distance between cities = 120 miles
Required:
What is the velocity of a trip from City A to City B?
To get the velocity of a trip from city A to B, we consider the parameter given for the car that travel 200 miles distance in 4 hours
Velocity = displacement ÷ time
Where displacement 200 miles
Time = 4 hours.
By substituton,
So, velocity= 200 miles ÷ 4 hours
Velocity = 50 miles ÷ hour
Velocity = 50 miles per hour
The velocity of a trip from City A to City B using the car is 50 miles per hour.