Answer:
Explanation:
a ) Kinetic energy of ball = 1/2 m v² , m is mass of the ball and v is its velocity
= 1/2 x .058 x 80²
= 185.6 J .
b ) The velocity of ball is very high so we shall find out the relativistic kinetic energy , the formula is given below
kinetic energy = mc² ( 
)
= mc² x 
- mc²
= .058 x 9 x 10¹⁶ x 
- .058 x 9 x 10¹⁶
= .058 x 9 x 10¹⁶ x 1 / .8 - .058 x 9 x 10¹⁶
.058 x 9 x 10¹⁶ ( 1.25 - 1 )
= .058 x 9 x 10¹⁶ x .25
= .1305 x 10¹⁶
= 13.05 x 10¹⁴ J .
A spring is an object that can be deformed by a force and then return to its original shape after the force is removed.Springs come in a huge variety of different forms, but the simple metal coil spring is probably the most familiar. Springs are an essential part of almost all moderately complex mechanical devices; from ball-point pens to racing car engines.
I think a obstetrician, since they specifically deal with pregnancy and birth. They would guide you through the entire pregnancy. Hope this helps :))
Answer:
Explanation:
The correct answer is right
<span>The answer is a. cutting trees reduce fertility and eliminates animal habitats. Plant material is essential in maintaing soil fertility. Leaves and branches decay to form humus; removing trees decreases the organic content. Trees are home to many animal species, including birds, insects and amphibians. Some trees are even support or home to other plants. Examples include epiphytes in the rainforest ecosystem. Clear cutting forests disrupts whole communities and ecosystems. </span>
