Answer:
Velocity includes direction.
Explanation:
Velocity is a vector. It includes both direction and magnitude.
Speed is the magnitude of velocity.
Explanation:
1) For a positive point charge, the lines radiate outwards
for a negative point charge, the lines converge inwards
2) F = 2.3 X 10^-26 N
k = 9 X 10^9 N.m²/C
q1 = q2 = e = 1.6 X 10^-19 C
r = ?
F = kq1q2/r²
r² = kq1q2/F
r = √[kq1q2/F ]
r = √0.0100
r = 0.10m
The two protons are 0.10 m apart
3) The unit if electric field intensity is Newton-per-coulomb N/C
Answer:
Explanation:
Electricity is a flow of electrons. Electrons can flow across a vacuum. ... They need to leap because the vacuum is a perfect insulator and so there is no medium in which they can flow (like through a metal conductor) so they must aquire all of the energy necessary to cover the distance before they can escape the cathode.
Answer:10km/hr
Explanation:
Displacement=35-10
displacement=20km
Velocity =displacement/time
Velocity =20/2
Velocity =10km/hr
<span>Gravity is defined as the attraction between objects. All objects with mass<span> are affected by gravity. (Mass is what the matter is made of.) Gravity
acts like a magnet pulling objects together. The Earth has gravity.
Gravity holds everything close to this planet. Trees, water, animals,
buildings, and the air we breathe are all held here by gravity.</span></span>
<span>We need gravity for us to stick on the ground and not to float into the
air. It stops objects from falling off our planet earth.</span>