Answer: B
Explanation:
<em>Velocity</em> is the speed of an object <u>but in a particular direction. </u>
<u></u>
If you look, answer choices A, C, and D, all give certain speeds, but they don't give any direction, like north east west or south. Only B gives the speed in a particular direction (north).
Hope this helps :))
Answer:
7. 01 * 10^7 N/C
Explanation:
Parameters given:
Distance, y = 2.9 m
Radius, R = 2.9 cm = 0.029m
Charge, Q = 5.0 µC = 5 * 10^(-6) C
Given that:
E = 2πKσ(1- [y/(R² + y²)]) j^
Charge density, σ, is given as:
σ = Q/A = Q/πR²
=> E = 2πKQ/πR² (1- [y/(R² + y²)]) j^
E = 2KQ/R² (1 - [y/(R² + y²)]) j^
E = (2 * 9 * 10^9 * 5 * 10^(-6) / 0.029²) (1 - [2.9/(0.029² + 2.9²)]) j^
E = 107015.46 * 10^3 *(1 - 2.9/8.41) j^
E = 107015.46 * 10^3 * 0.655 j^
E = 7.01 * 10^7 j^ N/C
The magnitude of the electric field is 7.01 * 10^7 N/C. The j^ shows the direction.
Answer:
h = 0.1 m = 10 cm
u = 0.2 m = 20 cm
v = 0.06 m = 6 cm
m = h'/h = v/u
h'/10 = 6/20
h' = 60/20 = 3 cm
Therefore image height = 3 cm(0.03 m)
Hope this helps!
Answer:
Mass of the rocket, m = 20,000 kg Initial acceleration, a = 5 m/s Acceleration due to gravity, g = 10 m/s Using Newton’s second law of motion, the net force (thrust) acting on the rocket is given by the relation: F – mg = ma F = m ( g + a ) = 20000 × (10 + 5)
Explanation:
Explanation:
tomatoes and lemons when used together are acid forming.
processed foods and certain dairy products are acid forming.
