Answer:
Q1. Young rocks are found on top, and old layer are found on the bottom.
Q2. Layers of sedimentary rock. Fossil layers are fossils that formed in sedimentary rock. When, over a long time, layers and layers of sediments get deposited on top of each other, the weight of the top layers presses down on the bottom layers, forming them into rock called sedimentary rock
Explanation:
Sedimentary rocks are deposited one on top of another. Therefore, the youngest layers are found at the top, and the oldest layers are found at the bottom of the sequence.
100. A centimeter is a 100th of a meter.
Force is mass into acceleration
and pressure is force applied per unit area.
Answer:
<em>v = 15,267 m/s</em>
Explanation:
<u>Kinetic Energy
</u>
Is the type of energy of an object due to its state of motion. It's proportional to the square of the speed.
The formula to calculate the kinetic energy is:

Where:
m = mass
v = speed
The kinetic energy is often expressed in Joules (J)
We are given the mass of a fly m=0.638 g and we need to calculate its speed in order to have a kinetic energy of 74354.5 J.
Converting:
m=0.638 g /1000 = 0.000638 kg
To find the speed, we solve the formula for v:


Substituting:

v = 15,267 m/s
(The fly should move faster than a rocket)