Answer:
B. Decrease the plane’s speed and height
Explanation:
Decrease in speed of plane:
When the speed of the plane is decreased then initial velocity of the package will be lesser. As a result, final velocity will also be lesser because in this case final velocity depends upon the initial velocity.
Decrease in height:
According to law of conservation of energy:
Loss in potential energy = Gain in Kinetic energy
mgh = ½ mV^2
It means with the decrease in height less potential energy will be converted to kinetic energy. As package has constant mass so it will gain less velocity.
Answer:
acc to formula= F= G m1m2/rsq
mass of Uranus= F×r sq/G×m
M=3.00×10^25×761.4×761.4×10^6/6.67×10^ -11×3.01×10^21
=3×10^25-8×7614×7614/667×301×10^-2-11+21-2
=173918988×10^11/200767
=866×10^11(approx)
Answer: Whenever important physicists are discussed, Galileo Galilei, Isaac Newton, and Albert Einstein seem get the most attention. However, as you’ve seen, Galileo formulated or refined many of his discoveries and theories based on the findings of others who came before him, including Aristotle
Explanation:
Whenever important physicists are discussed, Galileo Galilei, Isaac Newton, and Albert Einstein seem get the most attention. However, as you’ve seen, Galileo formulated or refined many of his discoveries and theories based on the findings of others who came before him, including Aristotle
Answer:
seconds
299.0588 meters
Explanation:
Given
- speeder has a constant speed,x=15
- officer starts 9 seconds after speeder crosses him and accelerates at 5 from rest
Let assume S as the distance covered by police before he catches him
let T be the time taken by him to do so
Therefore S
(since initial velocity=0)
This same distance is covered by the speeder in time T+9 as officer starts after pausing 9 seconds
Therefore S
equating both the equations
Solving the quadratic we get
T=3+3
or T=3-3(not possible as T cannot be less than 0)
So it takes 3+3 seconds for the officer to catch the speeder
⇒Distance covered 
=299.0588 m
