Oceans, lakes and rivers are some
In the textbook the kind of idealized object that described in section on radiation laws that it absorbs all the radiation falling for it because it is not giving off any radiation on its own. And about the black sweater worn by one of your classmates it goes the same.
The total charge on the helix is
- Q =

Height of one turn = 
Horizontal distance in one turn = 
<h3>
length of spring in one turn is</h3>

So, the total length of spring

Therefore, charge on spring

For more information on linear charge density, visit
brainly.com/question/15359786
Answer:
Explanation:
It is given that Hair dryer , Toaster and coffeepot are working simultaneously with power 1200 W , 700 W and 800 W respectively.
So the total power of system is 
it is given that they work properly until toast is on.
By switching on the toast, appliance stop working because it may cause the circuit to break to safeguard the circuit.
Circuit breaker frame are used in home to prevent the short circuit