A reference point is important in determining motion because in order to say that something is moving, you need to have something stationary to compare it to.
Answer:
D.
The forces on the book are balanced because the gravity pulling down on the book is equal to the upward force applied by the table.
Sedimentary rock forms from the weathered remains of other rocks
Answer:
Graph b
Explanation:
I used Desmond calculator which is a calculator where you can graph an equation! :)
Answer:
ω = 26.35 rad/s
Explanation:
given,
speed of discus thrower = 25.3 m/s
whirling through = 1.29 rev
radius of circular arc = 0.96 m
final angular speed of the discus = ?
using formula
v = ω r
v is the velocity of disk
ω is the angular speed of the discus
r is the radius of arc
ω = 26.35 rad/s
Final angular speed of the discus is equal to ω = 26.35 rad/s