Answer:
The speed of the rod is 2.169 m/s.
Explanation:
Given that,
Mass = 0.100 kg
Current = 15.0 A
Distance = 2 m
Length = 0.550 m
Kinetic friction = 0.120
(a). We need to calculate the magnetic field
Using relation of frictional force and magnetic force
Where, l = length
i = current
m = mass
Put the value into the formula
(b). If the friction between the rod and rail is reduced zero.
So,
We need to calculate the acceleration
Using formula of force
Put the value into the formula
We need to calculate the speed of the rod
Using equation of motion
Put the value into the formula
Hence, The speed of the rod is 2.169 m/s.
That completely depends on what characteristic you use to sort them.
You could list the planets in order of their mass, diameter, density,
rotation period, surface temperature, orbital eccentricity, inclination
to the ecliptic, surface reflectivity, etc. Each sorting criterion would
give you a different list.
In the order of the length of the semi-major-axis of each planet's orbit,
the sequence, from smallest to largest, is ...
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
the former planet Pluto.
It expands, increasing in volume. The warmer the water, the more space it takes up, and the lower its density.
Answer is 4,400,000 kg • m/s