Answer & Explanation:
Relative age is the age of a rock layer (or the fossils it contains) compared to other layers. It can be determined by looking at the position of rock layers. Absolute age is the numeric age of a layer of rocks or fossils.
Answer:
The combined magnetic force of the magnetized wire coil and iron bar makes an electromagnet very strong. In fact, electromagnets are the strongest magnets made. An electromagnet is stronger if there are more turns in the coil of wire or there is more current flowing through it.
Let us consider body moves a distance S due to the force F.
Hence the work by the body W = FS
If the force is not along the direction of displacement,then the work by a body for travelling a distance S will be -
where
is the component of the force along the direction of displacement.
![Hence\ W= FScos\theta](https://tex.z-dn.net/?f=Hence%5C%20W%3D%20FScos%5Ctheta)
![= F.S](https://tex.z-dn.net/?f=%3D%20F.S)
As per the question the power P is given as -
![P=\frac{W}{\delta t}](https://tex.z-dn.net/?f=P%3D%5Cfrac%7BW%7D%7B%5Cdelta%20t%7D)
![=\frac{F.S}{\delta t}](https://tex.z-dn.net/?f=%3D%5Cfrac%7BF.S%7D%7B%5Cdelta%20t%7D)
![= F.\frac{S}{\delta t}](https://tex.z-dn.net/?f=%3D%20F.%5Cfrac%7BS%7D%7B%5Cdelta%20t%7D)
![= \ F.V](https://tex.z-dn.net/?f=%3D%20%5C%20F.V)
Hence alternative definition of power P = F.V
Biceps curls & pushups , benchpress
Answer: Acted on by equal forces in opposite direction
Explanation:
Newton's First Law says that every body continue in its state of rest or constant speed on a straight line unless being acted upon by an external force.