Answer:
Explanation:
Energy of system of charges
= k q₁q₂ / r₁₂ + k q₁q₃ / r₁₃ + k q₃q₂ / r₃₂
q₁ , q₂ and q₃ are charges and r₁₂ , r₁₃ , r₃₂ are densities between them
9 x 10⁹ ( 2x2 x10⁻¹²/ .25 + 2x2 x10⁻¹²/ .25 + 2x2 x10⁻¹²/ .25 )
= 9 x 10⁹ x 3 x 16 x 10⁻¹²
= 432 x 10⁻³
= .432 J .
I don't exactly understand the question but I'll try my best to answer it and help you. You need energy in order to go up the ramp and cover the distance. I hope this helps! :)
Answer:
a) Maximum altitude of the projectile,
b) v = 10885.7 m/s
Explanation:
a) Mass of the earth,
Mass of the projectile =
Launch speed, v = 2.31 * 10³ m/s
Earth radius, r = 6.36 ✕ 10⁶ m
Workdone by the projectile against gravity
...............(1)
Kinetic energy of the projectile:
...................(2)
Equating (1) and (2) based on the law of energy conservation
b) Smallest required change in the satellite speed
Altitude, h = 352 km = 352000 m
Earth radius, r = 6.38 * 10⁶ m
v = 10885.7 m/s
The "legs" of a <em>right triangle</em> form a right angle, so they're perpendicular.
Answer;
Motion: A body is said to be in motion if it changes its position with respect to its surroundings.
Explanation:
Rest and motion are the relative terms because they depend on the observer's frame of reference. So if two different observers are not at rest with respect to each other, then they too get different results when they observe the motion or rest of a body .
one example for each. Rest: If a body does not change its position with respect to its surroundings, the body is said to be at rest. ... Motion: A body is said to be in motion if it changes its position with respect to its surroundings.