Newton's new “reflecting telescope” was more powerful than ... Before Newton, scientists primarily adhered to ancient theories on ... laws of motion laid the groundwork for classical mechanics. Newton's research on motion helped give credibility to the heliocentric view. Newton also helped pioneer telescopic innovations, and he is sometimes credited with inventing the first reflecting telescope. He also conducted experiments using the prism, and developed a theory about the nature of color and light.
Answer:
therefore normal reaction on the driver from the seat when the car passes through the bottom of the valley= 1520.55 N
Explanation:
let speed be v
at top of hill
mg-N = mv^2/R ( N=0 at the top of the hill)
==> mg=mv^2/R
at bottom
N-mg=mv^2/R
therefore,
N = 2mg = 2*77.8*9.81= 1520.55 N
therefore normal reaction on the driver from the seat when the car passes through the bottom of the valley= 1520.55 N
Answer:
Thus, average speed of the sprinter is 0.5854 
.
Given:
Total distance = 200 m = 0.2 km
Total time = 20.5 second = 
hour = 0.3416 hour
To find:
Average speed = ?
Formula used:
Average speed = 
Solution:
Average speed of the sprinter is given by,
Average speed =
Average speed = 
Average speed = 0.5854
Thus, average speed of the sprinter is 0.5854 .
Igneous rocks are formed from magma. The magma extrudes through the existing rock as a sill
Answer:
A crowbar is a level.
Explanation:
A crowbar is a first class lever. One where the fulcrum is between the effort and the load; The effort is applied to the end of a crowbar for example pulling up a nail the fulcrum is where the crow bar bends upwards touching the board, the load is the nail on the opposite end of the bar.
