I think that weight depends on gravity
Answer:
Charge density on the sphere = 2.2 × 10⁻⁸ C/m²
Explanation:
Given:
Radius of sphere (r) = 12 cm = 0.12 m
Distance from the electric field R = 24 cm = 0.24 m
Magnitude (E) = 640 N/C
Find:
Charge density on the sphere
Computation:
Charge on the sphere (q) = (1/K)ER² (K = 9 × 10⁹)
Charge on the sphere (q) = [1/(9 × 10⁹)](640)(0.24)²
Charge on the sphere (q) = 4 × 10⁻⁹ C
Charge density on the sphere = q / [4πr²]
Charge density on the sphere = [4 × 10⁻⁹] / [4(3.14)(0.12)²]
Charge density on the sphere = [4 × 10⁻⁹] / [0.18]
Charge density on the sphere = 2.2 × 10⁻⁸ C/m²
3.) multiply distance to increase speed
Answer:
The distance, d = 230 m
Explanation:
The distance is a scalar quantity and it is defined as how much ground an object covered to move from initial location to the final location.
It doesn't depend on which direction the object traveled.
The distance is always positive and non-zero.
Unlike the displacement, which is only depended upon the initial and final position of the coordinate without considering the path traveled, distance depends on the path of travel.
Given,
The cyclist traveled south, S = 80 m
The cyclist traveled west, W = 150 m
The total distance traveled, d = S + W
= 80 + 150
= 230 m
Hence, the total distance traveled by the cyclist, d = 230 m
Answer:
Aerobic exercise became part of this movement in the 1970s.