Answer is 4,400,000 kg • m/s
Answer: 0.4 V
Explanation:
Given
The area of the loop is
The magnetic field is changing at the rate of
Induced EMF is given by
The magnitude of induced emf is 0.4 V
Answer:
σ =4.180×10^{-9} C/m^2
Explanation:
electric field due to non conducting sheet is
the force acting on the piece of Styrofoam
Eq= mg
⇒E= mg/q
now,
⇒
charge per unit area (in C/m2) on the plastic sheet σ =4.180×10^{-9} C/m^2
The amount that Mary will pay in social security taxes will be $1550.
<h3>How to compute the value?</h3>
It should be noted that the current tax for the social security is 6.2% for the employer and 6.2% for the employee.
In this case, let's assume that the income for Mary is $25000, the amount that Mary will pay will be:
= 6.2% × $25000
= 0.062 × $25000
= $1550
Learn more social security taxes on:
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Missing question: "<span> What is the speed v of the bus?"</span>
Solution:
Let's solve the problem by writing the equilibrium conditions on both x- and y- axis:
where
is the weight of the lunch box,
is the centripetal force, T is the tension of the string and
.
The radius r is the one with respect to the vertical position of the string, therefore
.
From the first equation we find
and if we replace this into the second one, we find
from which we can find the velocity: