The answer is C. Elements
Elements cannot be broken down int simpler substances even by chemical means
At top, 2 forces act on passengers: normal force, force of gravity. The two act downward in the direction of the center of the circle.
To answer the problem we would be using this formula which is apply N2L:
Fnet = ma
mg + N = mv^2/r
minimum speed occurs when N = 0
mg = mv^2/r
v = sqrt (rg)
= √94.09
v = 9.7 m/s
Answer:
given , v = 300 km/hr; distance d = 1500 km; then time t = d/v = 1500/300 = 5 hrs
Explanation:
The correct answer to this problem is C
Answer:
h = 65.021 m
Explanation:
Given that,
Initial velocity of a baseball, u = 17 m/s
It lands 2.3 seconds later.
We need to find the height of the building. Let it is h. It can be calculated using second equation of motion as follows :
here, a = g
So, the building is 65.021 m tall.