Gulls are often observed dropping clams and other shellfish from a height to the rocks below, as a means of opening the shells.
1 answer:
You might be interested in
The Moon s escape speed will be smaller than Earth's.
- What is escape speed:
The minimum speed that is required for an object to free itself from the gravitational force exerted by a massive object.
The formula of escape speed is
where
v is escape velocity
G is universal gravitational constant
M is mass of the body to be escaped from
r is distance from the center of the mass
we can say that,
Escape speed depends on the gravity of the object trying to hold the spacecraft from escaping.
we know that,
The Moon's surface gravity is about 1/6th as powerful or about 1.6 meters per second per second.
since, v ∝ g
The Moon s escape speed will be smaller than Earth's.
Learn more about escape speed here:
<u>brainly.com/question/15318861</u>
#SPJ4
Complete Question
The complete question is shown on the first uploaded image
Answer:
A
B
C
The correct option is B
Explanation:
From the question we are told that
The refractive index of water is
The refractive index of ethanol is
Generally the threshold velocity for creating Cherenkov light from a charged particle as it travels through water is mathematically evaluated as
Where c is the speed of light with value
Generally the threshold velocity for creating Cherenkov light from a charged particle as it travels through water is mathematically evaluated as
=>
=>
