Answer:
Explanation:
In our universe the unit of current used to be defined as the current that produces a certain force per unit of length between two wires separated by a certain length. This means:
Replacing force by its definition
And since current is charge over time
From this we can define length as a function of time, mass, and charge:
Answer: It will amount to 11p after 20 years.
Explanation:
Formula :
Simple interest = Principal x rate x Time (i)
Amount = Principal + Interest
Amount = Principal + Principal x rate x Time
Amount = Principal (1+ rate x Time) (ii)
Given: Principal = p
After 1 year , amount = 1.5p
After 3 years , amount = 2.5p
From (ii)
Amount after 20 years = p(1+ 0.5 x 20) = p(1+10)=11p
It will amount to 11p after 20 years.
When wind is related to the movement of warm and cold air masses the type of heat transfer that this represents is convection.
Answer:
Explanation:
If the magnet is dropped from this position, then the direction of the induced current in the coil would be anticlockwise. Lenz's law allows us to predict the direction of the induced current in a circuit. It is also known as the Right hand rule. It states that the current that is being induced in a particular circuit is as a result of the change in the magnetic field in order to oppose the change in the magnetic flux and also to apply an mechanical force that is opposing the motion. Because of this, the current is pointed to the direction of the pole, to oppose this the induced current should be directed anticlockwise.
The ratio of the forces is 9.59×10^-4.
The transverse speed in terms of tension in the string (T) of the wave is,
ω/k=√T/μ
T=ω^2k$2μ
Substituting the values we get,
T=[(50.0rad/s)^2/(0.800m−1)^2]×(12.0×10−3kg/m)
≈46.9N
The ratio of the transverse force and the tension is,
F/T=0.045N/46.9N
≈9.59×10^-4
Hence, the ratio of the forces is 9.59×10^-4.
Learn more about forces here:
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