The webbing on a duck's foot creates a larger surface area, which means the force of its weight is distributed over more surface area and therefore there is less pressure on the mud and its not likely to be displaced as much, so the foot doesn't get stuck.
Answer:
Explanation:
<u>Net Force
</u>
The second Newton's law explains how to understand the dynamics of a system where several forces are acting. The forces are vectorial magnitudes which means the x and y coordinates must be treated separately. For each component, the net force must equal the mass by the acceleration, i.e.
The box with mass m=20 kg is pulled by a rope with a angle above the horizontal. It means that force (called T) has two components:
We'll assume the positive directions are to the right and upwards and that the box is being pulled to the right. There are two forces in the x-axis: The x-component of T (to the right) and the friction force (to the left). So the equilibrium equation for x is
There are three forces acting in the y-axis: The component of T (upwards), the weight (downwards), and the Normal (upwards). Since there is no movement in the y-axis, the net force is zero and:
Rearranging:
Solving for N in the y-axis:
The friction force is given by
Replacing in the equation for the x-axis, we have
Replacing the formula for N in the equation for the x-axis
Operating and rearranging
Solving for T:
Plugging in the given values:
The turn ratio of the transformer is 40.
<h3 />
<h3>What is a transformer?</h3>
A transformer is an electrical device that is used to step up or step down voltage.
The formula for calculating the turns ratio of a transformer is given below.
<h3> Formula</h3>
- a = V/v.......... Equation 1
Where:
- V = Primary voltage
- v = Secondary voltage
- a = Turns ratio of the transformer
From the question,
Given:
Substitute the values above into equation 1
Hence, The turn ratio of the transformer is 40.
Learn more about transformers here: brainly.com/question/6450076
Answer:
We conclude that the quantity of the charge that flows through the wire in 50 s will be 45 C.
Explanation:
Given
To determine
We need to find the quantity of the charge that flows through the wire in 50 s.
Important Tip:
A current of 1 Ampere = 1 Coulomb of charge flowing in 1 second
Using the formula involving charge and current
where:
- represents the current in amperes (A)
- represents the charge in coulomb (C)
- represents the time in seconds (s)
now substituting I = 0.9 and t = 50 in the formula
switch sides
Multiply both sides by 50
Simplify
C
Therefore, we conclude that the quantity of the charge that flows through the wire in 50 s will be 45 C.