Answer:
Some of the kinetic energy from B has been transferred to A
Explanation:
In elastic collision, kinetic energy is conserved. Since A had 0 kinetic energy before the collision, while B has some kinetic energy. And kinetic energy is defined as
As the speed of B decreases post-collision, and its mass stays the same, kinetic energy of B must have been decreased as well.
A gains speed post collision, and so does its kinetic energy. So according to the law of energy conservation, some kinetic energy from B must have been transferred to A.
Answer:
d ............................
Answer:
Net force = 0.0191 N
T=0.00054 N.m
p=99.2 μC.cm
Explanation:
Given that
L= 6.2 cm
q₁= 16μC
q₂=1μC
E= 1174 N/C
We know that
F = q E
F₁ = q₁ E
F₁ = 0.018 N
F₂=q₂ E
F₂=0.0011 N
Net force = F₁+F₂
Net force = 0.0191 N
Torque ,T
T = (F₁-F₂) L/2
T = (0.018 - 0.0011 ) x 0.032
T=0.00054 N.m
Polarization ,p
p= q d
p= 16 x 6.2 μC.cm
p=99.2 μC.cm
1. Some stars are bigger than others, some are different colors or temperatures. It all really depends on the age of the star.
2. Four differences could be:
1) Outer planets are much farther away from the sun, so they get less sunlight than inner planets.
2) Also, the outer planets are all gas giants (excluding Pluto), while inner planets are all rocky planets.
3) Inner planets also have a much higher density than outer planets.
4) Outer planets also tend to have many more moons than inner planets (such as Jupiter, with 63 known moons).
3. The barrier that separates the inner from the outer planets is a ring of space rocks known as the Asteroid Belt.
A comet is a ball of ice that orbits a star in a wide elliptical orbit.
An asteroid is a large rocky body that orbits a star, and could be anywhere in size from 600 miles across to tiny dust particles.
A meteoroid is a small object floating through space freely (not necessarily bound in any orbit) that is usually made of a rocky or metallic material.
4. Day and night are caused by the earth's rotation on its axis. Night is relative to the observer, and occurs when the observer is on the side opposite that on which the sun is shining.
Hope that helped =)
Answer:
Average velocity = 18 m/s
Explanation:
Given the following data;
Initial velocity = 10m/s
Acceleration = 2m/s²
Time = 4 seconds
To find the average velocity, we would use the first equation of motion;
Where;
V is the final velocity.
U is the initial velocity.
a is the acceleration.
t is the time measured in seconds.
Substituting into the equation, we have;
V = u + at
V = 10 + 2*4
V = 10 + 8
V = 18 m/s