Answer; they are larger and made of rocky material
Answer: 2,464m
Explanation:
Echo made by a source is dependent on the velocity of the sound in air/water, the distance between the source and the reflector and the time taken
Using the echo formula
2x = vt
Where x is the distance between the source and the reflector
v is the velocity of the sound in sea water is approximately= 1540m/s (This varies from place to place and depending on the season and nature of water)
t is the time taken
t = 3.20s
Substituting this datas into the equation to get 'x'
2x = 1540 × 3.20
x = 1540×3.20/2
x = 2,464m
The distance between the object creating the echo is 2,464m
Answer:
0.48
Explanation:
Given that
Frequency b1=0.4
Frequency b2=0.6
The predicted frequency of heterozygotes is given as
f(b1b2)= 2 b1 x b2
Now by putting the values
f(b1b2)= 2 b1 x b2
f(b1b2)= 2 x 0.4 x 0.6
f(b1b2)=0.48
So the answer is 0.48.
Answer:
<h2>b. Greater for the bug</h2>
Explanation:
The conservation of linear momentum states that the momentum before impact equals the momentum after impact
Also, when two objects collide, the change of momentum of particles m1 and m2 are equal in magnitude and opposite in sign and the total momentum change equals zero. Hence during a collision, Each object experiences the same force for the same amount of time, leading to the same impulse, and subsequently the same momentum change. in general, it is only the acceleration and the velocity components that differ for the two objects during the interaction.
Consequently, The object with the least mass always receives the greatest velocity change and acceleration.
Answer:
d.all of the above
Explanation:
The physical feature of the planet Earth affect people's activities in the following manner -
- Choice of Occupation - the process of occupation is completely a land depended process , hence any changes on the physical features of Earth , like the climate , temperature , rain etc , will hinder the occupations process .
- Method of transportation - it is also a Climate dependent process , so any change in climate may obstruct the transportation facility .
- Recreational activities - also depends on the physical feature of the planet Earth .
